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Innocor Service manual

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2. Innovision Innocor Service Manual 8 SPARE PARTS For the locations of the spare parts see figures 8 1 to 8 12 Item Description Part No 41 IF board ver 1 for serial no 0226011 to 0314050 SUB00024 IF board ver 2 for serial no 0320051 and newer SUB00032 2 Blood pressure electronic board NIBP MPC00015 3 Evacuation Filling pump SUB00010 4 Oxygen analyser Oxigraf X2004 OXI00001 5 Photo Acoustic Gas analyser PGA for measuring CO2 N20 and SF6 SUB00016 6 Power Supply 100w SUB00034 72 Touch screen controller for serial no 0226011 to 0427100 MPC00011 Touch screen controller for serial no 04xx101 and newer MPC00017 8 Fitting for blood pressure on patient panel NIBP coupling Male FIT00008 9 eae between IF board and pulse oximeter connection on patient CAB00015 40 Fitting for gas inlet on patient panel Female Luer 1 16 Lock ring FIT00036 Lock nut 11 Fitting for RVU connection on patient panel Six tube SXF4202 Insert FITOOO09 female 12 Fan SUB00009 13 Inverter controlling the back light MPC00012 14 Gas sample pump SUB00011 15 Solenoid valve for Evacuation Airstring Pneu 1 8 2 12V 1 2W SOL00003 16 Pulse Oximeter electronic board MPCO00014 17 Low pressure regulator SUB00028 18 Acoustic Attenuator SUB00033 19 Fitting for in out gas on data panel Female Luer 1 8 FIT00037 20 Se between single
3. V bag l 1 5 1 5 2 2 5 2 5 3 3 Bolus 10 10 15 10 15 10 15 10 15 Time sec Max Voz l min 10 0 9 1 4 1 7 1 8 2 3 2 3 2 8 2 7 3 4 12 0 8 1 1 1 4 1 5 1 9 1 9 2 4 2 3 2 8 14 0 7 1 0 1 2 1 3 1 6 1 6 2 0 2 0 2 4 16 0 6 0 9 1 1 1 1 1 4 1 4 1 8 1 7 2 1 Max load watt 10 62 107 140 153 197 199 254 245 310 12 46 84 112 123 159 161 206 199 254 14 35 68 92 101 132 133 173 166 213 16 27 56 76 84 112 113 147 142 183 The pluming diagram for the gas filling is shown in figure 2 5 6 1 AS i i i NEE Evac Fill H j P 0 45 bar E O bas Pneu 2 A he E ETS Fes ds ES Se Hi cause HP Gi Ee SE p gerry Figure 2 5 6 1 Gas filling diagram January 2007 COR MAN 0000 002 IN UK A 7 16 Innovision Innocor Service Manual Bolus fill The pressure in the gas bottle is up to 124 bar The pressure is reduced to 2 bar 30 psi in the first regulator and further reduced to 0 45 bar in the second regulator By controlling the opening time of the solenoid valve the bolus volume is controlled Typical bolus filling flow is 20 70 ml seconds Air fill The pump does the air filling and the volume is controlled by the on time Typical air filling flow is 50 60 ml seconds 2 5 7 Principle of RVU control The respiratory valve unit is pneumatically controlled The pneumatic is coming from the gas bottle containing the bolus gas The 0 45 bar is sufficient to activ
4. Innovision Flush Inlet 5 ml min v gt Particle Gas m Acoustical LP filter Inlet os Filter Sample wt Block Main Flow PAS _ 120 ml min Inlet aus Cell Zi O A Be wn Re is ae gt Regulator a v v y vA Particle Filter KR ezh e 100 ml min E 3 Dun rsi LY gia E s Differential o AAA Y RS2 A Y pe A Y Rs4 A E RF2 Pressure O A7 A AF gt Transducer Dm SE RS5 Shunt Flow 20 ml min L i a d 2 Micro Block a phone Outlet R9 R8 R7 R6 L Gas e OAA AVA AVA AVA E raz Outlet ae ES Fa Pump aed P Pro P Sg Absolute Puleation si oP pa ca AAO Pressure Attenuator Transducer L Abs N ______ acoustical LP filter Outlet R Flow Restriction C Cavity O Stub Figure 3 2 3 Schematic view of the gas flow Chopper HTN e X 3 optical filters Pulse frequencies A N e i Broadband KR Esc gt gt St WF 215 Hz IR light ed Wi i y R EAN ao a gt ft IN NANA co 273 Hz 1 eo EA Era E J AM N O 332 Hz Pulse Broadband Pulse modulated Broadband IR light IR light Figure 3 2 4 IR light chopping and filtering in the multi gas analyser January 2007 COR MAN 0000 002 IN UK A 7 22 Innovision Innocor Service Manual GE Filters a A Multigas microphone signal Figure 3 2 5 Principle of gas data processing January 2007 COR MAN 0000 002 IN UK A 7 29 Innovisi
5. l Figure 8 12 Wiring diagram with Breath by Breath January 2007 COR MAN 0000 002 IN UK A 7 138 Innocor Service Manual Innovision coer ue ere Hod Jaen y 001 Zz ZN wesberq Bulquinta om Aerer pod pasojo Aeon ON pod uowwog 9 SOATEA prouajos UO GI HOJ ALL 6S4
6. Innocor Service Manual Es A Figure 2 6 1 Wiring diagram without BBB COR DR 0000 0000 M90 IN A 2 January 2007 COR MAN 0000 002 IN UK A 7 18 Innovision Innocor Service Manual Figure 2 6 2 Wiring diagram with BBB COR DR 0000 0000 M90 IN A 3 January 2007 COR MAN 0000 002 IN UK A 7 19 Innovision Innocor Service Manual 2 7 TUBING DIAGRAM 122 0 114 K 123 k 124 zm 55 118 me Ja N R cl e KR dng paw S A NC
7. concentration narrow first filling line off the bag prior to the inspiration rebreathing High insoluble gas Bolus valve not closing Return Innocor to Innovision concentration for replacement of bolus valve High Low insoluble gas Incorrect calibration Re calibrate PGA concentration Small spikes on O Missing particle filter Connect particle filter Noisy signals Defect flow regulation Check the FFT spectrum at 50 Hz if wide change tubing No signal on CO N20 amp SFe but Oz OK Chopper wheel not turning Check the FFT spectrum peaks at 214 8 SFe 273 4 CO 332 N20 January 2007 COR MAN 0000 002 IN UK A 7 98 Innovision Innocor Service Manual Symptom Cause Recovery No signal on CO N20 amp SFeg but O2 OK IR source not powered Check the FFT spectrum peaks at 214 8 SFe 273 4 CO 332 N20 No signal on N20 SF but CO amp O2 OK No more gas Check gas bottle e g connect a new bottle CO abnormal during test No more gas balloons not inflated Connect a new bottle Down going spikes on CO N20 amp SFe but not on O2 Too high evacuation pressure when patient empties the bag Instruct patient to apply lower under pressure during emptying the bag Down going spikes on CO Patient not using nose clip Instruct patient to use nose N20 SFe amp O2 clip Down g
8. nnocor Document no COR DR 0400 0000 M99 IN DA 190405 C Common port ws cit 160305 NC Normally closed port Krees r i BI 020604 R Relief port Plumbing Diagram An 140803 Main Unit Revision Date Figure 2 7 2 Tubing diagram with Breath by Breath January 2007 COR MAN 0000 002 IN UK A 7 21 Innovision Innocor Service Manual 2 8 EXTERNAL CONNECTOR CONFIGURATION 2 8 1 Pulse oximeter A 9 Pin D Sub connector Pin Cable colour Description 7 Cable shield Cable shield 5 Coax signal Photo diode signal 8 Coax shield Signal shield 9 Yellow Photo diode bias 6 Green Sensor type line 2 Red LED drive line 3 Black LED drive line 2 8 2 RVU e e l I No NL Inlet Inlet Nafion Nafion Airway pressure Airway pressure Six tube seen Six tube seen from the from the inside of the outside of the cabinet cabinet Figure 2 8 2 1 Six tube connector With BBB option Airway pressure ref flow port closest to the RVU Airway pressure flow port closest to the mouth piece 2 8 3 USB Version USB 1 1 A type A USB connector Pin Colour Description 1 Red 5 VDC 2 White Data 3 Green Data 4 Black Ground January 2007 COR MAN 0000 002 IN UK A 7 22 Innovision 2 8 4 LAN Speed 10 100 Mbps Type Ethernet TCP IP Innocor Service Manual Pin Colour Descriptio
9. Figure 4 2 1 4 Menu for manual control of the Pneu 1 gas line January 2007 COR MAN 0000 002 IN UK A 7 67 Innovision Innocor Service Manual 4 2 2 Preparation of bolus and air filling calibration When calibrating the filling flow bolus gas and air on Innocor the following components are needed 3 liter calibration bag with 3 way valve 1 liter calibration syringe Y Figure 4 2 1 Components for gas filling calibration The setup for a filling flow calibration Connect to evacuation bag filling line Figure 4 2 2 Setup for gas filling calibration Connect the Respiratory Valve to the 3 liter calibration bag see detailed view above January 2007 COR MAN 0000 002 IN UK A 7 68 Innovision Innocor Service Manual 4 2 3 Bolus calibration The calibration of the bolus is a calibration of the bolus filling flow which typical is in the range of 20 70 ml s Most of the Innocor models below xxxx098 is in the range 50 70 ml s where models with and after xxxx098 is in the range 20 45 ml s An incorrect bolus filling flow will result in the messages too low or too high insoluble gas concentration after a rebreathing test The accuracy of the bolus filling flow is not very critical since the main bag volume is coming from the air fill and because the concentration of the mixed gases is measured during the first inspiration However the warning messages too low or too high insoluble gas concentr
10. 5 8 PGA Symptom Cause Recovery PGA not responding No power to PGA Inspect power cable to PGA internally in the Innocor PGA not responding Failure on RS232 cable to PGA Inspect RS232 cabling internally in the Innocor PGA not responding Loose Eprom on PGA Press on Eprom located just below power connector to IF board 5 9 OXIGRAF Symptom Cause Recovery No response from Oxigraf No power to Oxigraf Inspect cable to Oxigraf internally in the Innocor No response from Oxigraf Failure on RS232 cable to Oxigraf Inspect RS232 cabling internally in the Innocor Oxigraf not ready Failure on line scan in the Oxigraf Try a longer warm up of the Innocor January 2007 COR MAN 0000 002 IN UK A 7 100 Innovision 5 10 PULSE OXIMETER Innocor Service Manual Symptom Cause Recovery Unstable HR SpO Too much movement of the finger clips during test Tape the line to the hand or use Nonin Flex system 8000J Adult Flex Sensor No HR and SpO signals pulse oximeter not responding Failure on RS232 cable to pulse oximeter Inspect RS232 cabling internally in the Innocor No HR during BP NIBP cuff and pulse oximeter Place pulse oximeter sensor measurement sensor on the same arm on the other arm or complete the BP measurement before starting the rebreathing 5 11 N
11. HbO HbO sti RHb HbO where HbO is the concentration of oxyhaemoglobin and January 2007 COR MAN 0000 002 IN UK A 7 39 Innovision Innocor Service Manual RHb is the concentration of deoxyhaemoglobin If the haemoglobin molecule is bound to oxygen then one has oxy haemoglobin or HbO If the haemoglobin molecule is bound to carbon monoxide then one has carboxy haemoglobin or HbCO If the haemoglobin molecule is bound to nothing then one has deoxy haemoglobin or RHb or reduced haemoglobin In healthy adults arterial oxygen saturation is approximately 97 This depends on physiological parameters as well as on the oxygen partial pressure of the inspired air In venous blood the oxygen saturation is approximately 75 Absorption of haemoglobin Colour appears when some of the light shinning on or through a substance is absorbed When haemoglobin picks up oxygen in the lungs it changes from dusky bluish red to bright red Measuring the colour of blood therefore makes it possible to estimate how much of the haemoglobin in the blood is bluish and reduced and how much is red and oxygenated The light absorbed or extinguished by haemoglobin extends from red wavelengths between 650 nm and 750 nm to the infrared 900 nm to 1000 nm region Hemoglobin amp Water Se AR CW 2 Hm HBO icm Absorption 200 300 400 500 600 700 800 900 1000 1100 Wavelength nm Figure 3 4 1 absorption measurements of haemogl
12. 1 SD 2 digits SpO accuracy below 70 Not specified Heart Rate accuracy No motion 18 300 BPM 3 digits Heart Rate accuracy Motion 40 240 BPM 5 digits Heart Rate accuracy Low perfusion 40 240 BPM 3 digits Patient Isolation Meets 60601 1 Dielectric withstand Leakage Current Not applicable The pulse oximeter is designed to use Nonin sensors only SD Standard Deviation is a statistical measure Up to 32 of the readings may fall outside these limits Non invasive Blood Pressure NIBP Method of measurement cnnccccncocccccononcncnononnnccnnnnncncnnnnnnncnannncnnnnnns Oscillometric Kee Diastolic values correspond to Phase 5 Korotkoff sounds Blood pressure range A Asis ceticertiscteciepenicenes geregelte 40 mmHg to 260 mmHg SEET EE 20 mmHg to 200 mmHg Heart rate range cceeeeeeeeeeees 40 BPM to 200 BPM Beats Per Minute Transducer Accuracy 3 mmHg between 0 mmHg and 300 mmHg 2 2 TECHNICAL SPECIFICATION Mechanical EE 32 x 26 x 24 cm Neben EES EE gees 8 9 kg depending on options Electrical Power suppl 220 240 V 10 50 60 Hz Jive led lah ata ee eae 100 120 V 10 50 60 Hz Power Consumption coccccncnoncnnnnncnnnnnonononenenenenenenenenes 45 W nom 100 W max FUSE TEQUIFEMEONTS doi nilo eege co ccbe dad be 2 x 1A T 250V Protection uti Class type BF according to EN 60601 1 Environmental Operating Temperature 10 40 C Operating pressure eiii al 525 800 mmHg Operating h
13. January 2007 Table 3 8 2 1 P A L circuit IC2 coding COR MAN 0000 002 IN UK A 7 53 Innovision Innocor Service Manual 3 8 3 Sensor Interface PaW Pressure 5V_AGND WO 10 to 10V PGA Analog BER 2 54 mBar to 2 54 mBar Gas Supply Pressure 12V_PGA AN_POA el AGND MSP 300 pressuretransducer 0 5V 104 54 Rig Bagevacuation Pressure Control y cig uz gusesz t t00n e 8 NI O 5V to 4 5 207mBar to 207 mBar 0 97 gt 100mBar ov CIG Oxigraf analog input Sheet 4 pon 1K ES R21 10K R2 mp dRo O Bar to 175 Bar T0Pol Analog Out PGA Special 02 input Analog GND EVAC STAT un stat INA126_2 yy INAT2E2 gt Sheet 2 Sheet 4 M311 Organization Figure 3 8 3 1 Sensor interface January 2007 NP Not Present COR MAN 0000 002 IN UK A 7 borelF Board xd ex 0001 Document Number Date Wednesday February 26 2003 Page PCB No 67951 Interacoustics a s xd ex 0000 00001 SAG707 F Board Pressureja mp Control Rer PSC 54 Innovision Innocor Service Manual 3 8 3 1 Airway pressure The airway pressure PaW is the pressure over and underpressure that arise when a patient breathes in the Respiratory Valve Unit RVU The pressure is measured immediately after the mouth in the RVU and is used to
14. amp 10 0 CO all in 20 O and balance N2 4 3 4 SNR test A signal to noise test on the gas signals is a way to determine the quality of the gas signals e Enter the service program of Innocor e Select the gases to measure in Signals by turning them into italics Use Select Stat with mode Press signal name to select See figure 4 3 4 1 e Select Signal Stat e Enter 1000 samples corresponding to 10 seconds e Expose a test gas containing gas concentration of the signals to measure e Wait until the gas signals are stable by looking at the graphic display see figure 4 3 4 2 e Press Start e Typical SNR s e O 50 SNR gt 1000 e O2 20 95 SNR gt 500 e CO 5 SNR gt 400 e SFs 0 2 SNR gt 1000 e N O 1 SNR gt 1000 e f one or more of the SNR s are significantly low the PGA must be returned for service e The following inspections can however be performed before returning the PGA e ls the inlet particle filter clean e ls the PGA platform free floating no tube or wire pressing on the platform Start BA Raw 02 02 Def MCU Dig 02 anmannan CO2NoLead PKm kPa Flow DiffP Bottle Press Oxygen Sat Reset PGA MN20 NoLead TKm K FLow Ref MPP Heart Rate wegen SE Delay 02 ms Pump Vol Config Select Stat Press signal name to select Select Color Signals K r E Ee Exit Service i Figure 4 3 4 1 Menu for selecting channels for SNR measurement January 2007 COR MAN
15. 0 0 0 0 0 Sec Master Sec Slave Drive A 1 44M 3 5 in Drive B None Video EGA VGA Halt On All But Disk Key January 2007 COR MAN 0000 002 IN UK A 7 59 Innovision Bios features setup Innocor Service Manual Virus warning Disabled Video BIOS Shadow Enabled CPU Internal Cache Enabled C8000 CBFFF Shadow Disabled Quick Power On Self Test Enabled CCO00 CFFFF Shadow Disabled Boot From LAN First Disabled DO0000 D3FFF Shadow Disabled Boot Sequence C A SCSI D4000 D7FFF Shadow Disabled Swap Floppy Drive Disabled D8000 DBFFF Shadow Disabled Boot Up Floppy Seek Disabled DCO00 DBFFF Shadow Disabled Boot Up NumLock Status On Boot Up System Speed High Gate A20 Option Fast Memory Parity Check Enabled Typematic Rate Setting Disabled Typematic Rate 6 Chars sec Typematic Delay Msec 250 Security Option Setup PCI VGA Palette Snoop Disabled OS select For DRAM gt Non OS2 64MB Report No FDD For WIN Yes 95 Chipset features setup SDRAM CAS latency Time 3 T SDRAM Clock Ratio Div 4 By 16 bit I O Recovery CLK 5 8 bit I O Recovery CLK 5 USB Controller Enabled USB Legacy Support Enabled Power Management Setup Power Management Disabled IRQ1 Keyboard ON Standby Mode Disabled IRQ3 COM 2 OFF HDD Power Down Disabled IRQ4 COM 1 OFF MOD
16. 0000 002 IN UK A 7 Innovision Innocor Service Manual The 3 liter calibration bag will now be emptied and immediately hereafter the bolus filling will start e When the bolus filling is finished turn the 3 way valve so that the syringe and the calibration bag are connected make sure that the syringe is completely empty before turning the valve lt p RVU Figure 4 2 1 3 Setup for bolus calibration 2nd step e Measure the bolus volume in the bag by pulling the syringe piston When the calibration bag is completely emptied read the measured volume and type in the value Note that the measured volume is one litre minus the reading on the scale When the bag is nearly empty it is important not to overstress the syringe piston The calibration bag can be considered empty when it visually looks like the bag when Innocor has emptied it The bolus flow is now calibrated e Perform the bolus calibration procedure again to check that the flow is correct Ideally the desired bolus volume in this second filling should be somewhat different from the first e g decreased by 50 Irregularities in the bolus flow are hereby more likely to be revealed If the desired bolus volume matches the measured bolus volume within 5 relative and the bolus flow is within the range 20 70 ml s the calibration is OK Most of the Innocor models below xxxx098 has a bolus flow in the range 50 70 ml s where models with and after xxxx098 is in the r
17. 3mm OD 5mm 20 mm TUBOO0006 020 PVC natural ID 3mm OD 5mm 100 mm from serial no 0425092 TUBOO0006 100 156 PVC natural ID 1 16 OD 1 8 200 mm TUBO0005 200 PVC natural ID 1 16 OD 1 8 160 mm from serial no 0425092 TUBOO0005 160 157 PVC natural ID 3mm OD 5mm 270 mm TUBOO0006 270 158 PVC natural ID 3mm OD 5mm 200 mm TUBOO0006 200 PVC natural ID 3mm OD 5mm 160 mm from serial no 0425092 TUBOO0006 160 159 PVC natural ID 1 16 OD 1 8 10 mm TUBO0005 100 160 PVC natural ID 1 16 OD 1 8 5 mm TUB00005 005 161 PVC natural ID 1 16 OD 1 8 500 mm TUBO0005 500 162 PVC natural ID 1 16 OD 1 8 120 mm TUBO0005 120 163 PVC natural ID 1 16 OD 1 8 150 mm TUBO0005 150 164 PVC natural ID 1 16 OD 1 8 300 mm TUBO00005 300 Notes 1 The SUB00024 IF board ver 1 is replaced by SUB00032 CAB00024 CAB00025 and 3 x CAB00026 2 MPC0011 can be replaced by MPC00017 and CAB00029 3 Gas manifold SUB00027 cannot be replaced by SUB00035 4 Without BbB CABO0018 With BbB CAB00018 between PGA and BbB sensor electronics CABO0010 between I F board and BbB sensor electronics same cable but different length 5 Factory adjusted between 120 and 100 mm in order to balance the 2 pressure lines January 2007 COR MAN 0000 002 IN UK A 7 130 Innovision Innocor Service Manual Figure 8 1 January 2007 COR MAN 000
18. 8 Gas outlet going to pulsation attenuator NOOR WD IS Find the four PGA mounting screws located on the bottom plate M3 unbrako A detailed plan on the bottom plate screws can be found on figure 7 2 6 Gently loosen the screws Always exchange the mounting screws together with the PGA January 2007 COR MAN 0000 002 IN UK A 7 112 Innovision Innocor Service Manual PCB3 To IR photo diode 2 Serial ee S communication 1 Power line to computer To IR Y to 1 F Board temp y Power to 3 Digital UO IR source to I F Board To flow regulator qu sig To motor Lo gt LA L 5 Oxygen signal to I F Board J410 Power to gas inlet pump Chopper detector 7 Gas inlet coming from oxygen sensor or directly from external connection if no 8 Gas outlet ke oxygen sensor is going to pulsation A d AMAS SE lt lt installed attenuator p Q V y AJ SR V V To chopper detector To microphone 5 Analogue line to I F board Figure 7 3 2 PGA exchange January 2007 COR MAN 0000 002 IN UK A 7 113 Innovision Innocor Service Manual 7 4 OXIGRAF The oxygen sensor Oxigraf is located below the NIBP module and on top of the PGA E Na Cable to main PA E ME Board 9 aa d Oxigraf To PGA inlet 6 From patient llo Esc panel SES Figure 7 4 1 Oxygen sensor location When exchanging the oxygen
19. Brass Ni plated body bonnet brass piston Viton o ring seal PCTFE seat ES Tu e EE Cleaned for oxygen service Low pressure Regulator Description cocina Non relieving low pressure regulator with membrane Inlet pressure eegener ii AE 1 to 20 bar Flow pressure i e Factory preset at 0 45 bar adjustable between 0 1 to 0 7 bar le n a Materials Zinc body acetal bonnet brass nitrile valve acetal valve seat nitrile elastomere High pressure gauge Description od tdo octal ee Piezo resistive silicon transducer Pressure tangente eens 0 175 bar Long term stability 1 Year nnna a E nr nano nn rra rra 0 25 FS Burst preSSUre me hos hit eters edits Ae te ee e a de ee gt 875 bar Solenoid valves Evacuation Rebreathing Pneu 1 Pneu 2 DescripllONt get inhi eis dier 3 2 solenoid valve with manual override and LED EIER sete een ther eit alata teeta ete Mua A EE in he teats ee el hiss lat 1 6 mm Max Working pressure cui Ada 3 5 bar Power cONSUMPlON sceneries Beds ii A E Deg e 1 2 watt RESPONSE timen aia at d lt 3ms Solenoid valves Air string soleniod valve Zero cal solenoid valve Description iia ii it 3 2 solenoid valve OMC tt it tasca n a Max working pressure incita cinto cir iia 2 0 bar EW A E 10 litre min 2 0 bar Power CONSUMPION cir ati a lt teen et 1 0 watt RESPONSE TIME Rinitis adsl iaa lt 20ms Evacuation filling pump RI lee Piston pump e 4 3 litre min Max intermittend pressure ooococcccocccon
20. Further measurement not possible The database containing Gas Cylinder data is invalid or corrupt Contact Innovision The Gas Cylinder number is invalid The entered Gas Cylinder number is not a valid number Contact Innovision January 2007 COR MAN 0000 002 IN UK A 7 104 Innovision Innocor Service Manual 7 DISASSEMBLY AND REASSEMBLY 7 1 GENERAL SERVICE INFORMATION 7 1 1 Screws for thermoplastics Special screws for thermoplastics are used to attach the rear and front part to the bottom part of the main housing When using these screws special considerations must be taken Description of screws for thermoplastics The screws for thermoplastic used in Innocor belong to a sort of so called thread forming screws This means that the first time the screw is inserted a thread is formed With the sharp 30 angle the thread is easily penetrating the thermo plastic The big thread elevation gives a high margin of safety against over tightening How to mount a screw for thermo plastic If a screw is inserted into a hole with an already formed thread care must be taken not to forma new thread on top of the old one Two threads in the same hole can result in a structural failure An old thread can be caught by first finger tightening the screw approx half a turn clockwise A screwdriver can then be used to fully lock the screw January 2007 COR MAN 0000 002 IN UK A 7 105 Innov
21. Innocor on Connect a gas bottle Connect the RVU Remove the insert and close Pneu 1 and 2 or connect a tube between them Enter the service program of Innocor Wait Y hour to stabilise Innocor amp gas bottle temperatures Select Misc Select Valve Press RVU Blocked see figure 4 7 2 1 Select Pressure see figure 4 6 1 Unscrew the gas bottle counter clockwise 1 turns Note the gas bottle pressure Wait at least 1 hour Note the gas bottle pressure again Calculate the leak rate per hour The leak rate is accepted if lower than 10 bar hour In case of too high leak rate inspect and the internal leak test is passed e The tubing of the RVU e If the leak rate is still too high return the Innocor to Innovision for repair Elapsed time Bolus Fill Air Fill Valve n RYU Blocked R Single Yalve Control Close to Reb Bag Pneu1 Valve Contro Functio Close to open Air Pneu2 ON j Pneu 1 D1 j EYAC D7 RYU Blocked Air String for Bag fill AIR J Bolus bag fill Rebreathing ON j Pneu 2 D2 j PAW D6 Bag Evac Airway Zerocal PAW B P D4 K Reb Bag Evacuation EYAC CH REB D5 ag Pump 09 Solus Fill le jan D3 p s Spare Bag Air Fill Exit Service Signals Signal Stat PGA Zero PGA Mix Oxygen Cal P TALAN Figure 4 7 2 1 Menu for opening Pneu 1 amp 2 during leak tes January 2007 COR MAN 0000 002 IN UK A 7 87 Innovision Innocor Service Manual 4 8 EVACUATI
22. Use it is recommended that the manufacturer perform a number of calibrations periodically on a 12 months basis Calibrations by Innovision comprise the same calibrations as those performed by the distributor plus the following a Pulse oximeter Performance check using a special calibration kit b NIBP pressure transducer Gain calibration using a reference transducer and a vessel reservoir The test includes also a leak test and a check of the safety timer c Photo acoustic analyser Check on the gas mixture see above and an exercise test from 0 to 125 watt 0 25 50 75 100 amp 125 watt simultaneously with a reference instrument If major deviations are found a multi point calibration is performed d Gas pressure sensor The gain calibration is checked 4 1 4 Enter service mode of Innocor In order to make the different calibrations checks of the Innocor the Service part of the Innocor s w must be entered Select Setup from the main menu and press Service To access the service functions of Innocor the corners in the message box below must be pressed in a specific order see figure 4 1 4 1 below Access only for technical personnel OK e Figure 4 1 4 1 Key to entering service module January 2007 COR MAN 0000 002 IN UK A 7 64 Innovision Innocor Service Manual 4 2 CALIBRATION OF GAS FILLING FLOW 4 2 1 Adjustment of low pressure Before calibrating the bolus flow it is recommended to check
23. a test with an oxygen O2 enriched mixture containing two foreign gases typically 0 5 nitrous oxide N20 and 0 1 sulphur hexafluoride SFe The filling is done in two steps e A bolus part is filled from the gas bottle containing 94 O 5 N O and 1 SFe e The rest is coming from air via an air pump Under normal resting conditions it is recommended to use 10 bolus and 90 air which gives a mixture of e O2 28 3 e N20 0 5 e SF 0 1 During exercise gt 150 watt it can be necessary to increase the bolus due to a higher oxygen uptake in order not to have too low oxygen 13 concentration at the end of the test The following formulae can be used to manual estimate the max Voz during the test January 2007 COR MAN 0000 002 IN UK A 7 15 Innovision Innocor Service Manual Max Vo 0 2095 0 13 V gir 0 94 0 13 Vous Time sec 60 Where Vair air volume Vbolus bolus volume Time rebreathing time Knowing the Max Vo the max work load can be predicted using the formulae Max load watt Max Vo 0 3 0 01 Examples of using different bag volumes bolus concentration and rebreathing time
24. absorbed in the sample cell Figure 3 3 8 is a diagram illustrating a spectral absorption line 40 in relation to the operation of the oxygen concentration detector of figure 3 3 6 when the oxygen concentration detector is not perfectly locked onto the spectral absorption line 40 If the magnitudes of the radiation detected at the left and right skirt wavelengths differ from one another as illustrated in figure 3 3 8 then the peak wavelength of the actual spectral line is determined not to be centred between the two skirt wavelengths The baseline skirt and peak wavelengths in figure 3 3 8 should be shifted downward in frequency to achieve optimal line lock Absorption Wavelength Wu Wei We Wier Wor WI A SS rrr rrr ee ta e Wavelength i Wu Ws WoWsr Wor Figure 3 3 8 Unlocked spectral absorption line caused by an imbalance in ws and War The simplified block diagram of figure 3 3 6 illustrates how the radiation detected at the baseline January 2007 COR MAN 0000 002 IN UK A 7 36 Innovision Innocor Service Manual wavelengths can be subtracted from the radiation detected at the peak and skirt wavelengths so that the results are indicative of the skirt and peak absorbencies of the material in the sample cell A difference circuit labelled DIFFERENCE detects the difference in current between its two inputs leads The current from the monitor photo detector D2 is supplied to one of the input leads of th
25. are accounted for by also measuring the blood insoluble gas The spontaneously breathing patient puts on a nose clip and breathes into a respiratory valve via a mouthpiece and bacterial filter At the end of expiration the valve is activated so that the patient will breathe in and out rebreathe from a rubber bag for a period of 10 20 seconds The patient is asked to empty the bag during each inspiration and breathe with a slightly increased respiration rate After this period the patient is switched back to ambient air and the test is terminated The bag is prefilled with an oxygen O2 enriched mixture containing two foreign gases typically 0 5 nitrous oxide N20 and 0 1 sulphur hexafluoride SF These gases and CO are measured continuously and simultaneously at the mouthpiece by a photoacoustic gas analyser inside Innocor January 2007 COR MAN 0000 002 IN UK A 7 1 Innovision Innocor Service Manual N20 is soluble in blood and is therefore absorbed during the blood s passage of the lungs at a rate which is proportional to the blood flow So the higher the cardiac output the higher the disappearance rate slope of measured gas curve SFs is insoluble in blood and therefore stays in the gas phase and is used to determine the lung volume from which the soluble gas is removed The rebreathing test can be performed as a single test at rest or at a given exercise level using e g a bicycle ergometer or a treadmill in a stand alone confi
26. calibration on a regular basis by the user e g once a month No tools are necessary as air is used for the adjustment See section 4 3 2 Without Breath by Breath b The airway pressure sensor is automatically calibrated for zero point as part of the bag preparation for each rebreathing test With Breath by Breath c The flowmeter sensor is automatically calibrated for zero point on a regularly basis as part of the bag preparation for each rebreathing test and by default every 1 minute during Breath by Breath measurements d The flowmeter gain should be checked every day and when the flowmeter screen has been changed See section 4 4 1 e The flow gas delay should be checked every day and when the gas sample line has been changed During an exercise test the flow gas delay is automatically adjusted as default when the exercise level is above a certain level typical 1 3 of max load See section 4 5 4 1 2 Calibration check by distributors In accordance with the Instructions for Use it is recommended that the manufacturer or his representative perform a number of calibrations or calibration checks periodically on a 6 12 months basis In order for the distributor to be authorised to do calibration and checkout the Innocor service program and special procedures must be explained to him by an Innovision service engineer technician In addition to the Innocor service program the following tools are necessary to do the calibrat
27. connector or return Innocor to Innovision Digital O is OK but not the analogue O Failure on analogue cable from Oxigraf to PGA Inspect analogue cable from Oxigraf to PGA Item 36 CAB00003 Slow response on signals Partly occluded particle filter Change particle filter First inspiration not flat Partly occluded particle filter Change particle filter First inspiration not flat Rebreathing gas not mixed properly Check bag is free floating check end of filling tube to bag or use a smaller bag Low High insoluble gas LP regulator out of calibration Adjust LP regulator see concentration section 4 2 1 Low High insoluble gas Bolus filling flow out of Adjust bolus filling flow see concentration calibration section 4 2 1 Low High insoluble gas Air filling flow out of calibration Adjust air filling flow see concentration section 4 2 4 Low insoluble gas Partly occluded particle filter Change particle filter concentration Low insoluble gas No more gas Check gas bottle e g connect concentration a new bottle Low insoluble gas Bolus valve not opening Return Innocor to Innovision concentration for replacement of bolus valve Low insoluble gas concentration The bag opening is triggered during expiration Instruct patient not to stop breathing out during expiration High insoluble gas Bag is not mixed properly Connect filling line or shake
28. d 7 ADIQUUJ ll y 3 es ojo ege Innocor Service Manual a6ne6 pue anjea jul ynoyym ost gor zv w de an sol eee J cl l l I d l l ae S K oO piopuenw Ms L gt Le yeuiqeo ay JO apisul SCH SZ ayy wozy usaseqmxis ul w ES ven E 604 Di lt Po or Ca Q 7 ams d fem w Ki G d a Di gt i a vel ZE Jas ansseid Kemury a sosuas 3 Ma 100 2er N Y ES 2 i DN ty Ne mb EE Le N 1 Ei gt gt zer A d 1 d i A 0 s m a SEL L t SLL ESL bk A 6EL A 10 9d Ze EEL o i el x x ES x Wa z Wa EM Se ry a Ji d Ww a a Wi fei ON do a ON Bl gt Npa AN IN So 7 y 5 gt m 3 2 E en sst ebxz N 2 zu En Em ZKL ER It Jr raid NN y e I x a SS S WE 3 om y r D A sm E st
29. following formulae VLare VLetps PB 47 PB 18 RH 100 273 t 310 The VLatp is expected to be in the range 1 620 0 1litre without the flowmeter and 1 680 0 1litre with the flowmeter e If not check the air and bolus filling flow e The calculated Vo is expected to be within 0 167 0 1 l min e The calculated Qc is expected to be within 0 3 I min 4 11 CALIBRATION OF TOUCH SCREEN If the touch screen is out of sync try to make a calibration of the touch screen Select Shortcut Double click on the Elo calib program Press the Calibrate button and follow the instructions on the screen 4 12 CALIBRATION OF NIBP The calibration of the NIBP module can only be performed at Innovision or by qualified trained personnel It is recommended to have the NIBP module checked routinely e g 1 time a year January 2007 COR MAN 0000 002 IN UK A 7 Exit to windows On the Innocor main screen press right top corner followed by left top corner 89 Innovision Innocor Service Manual 5 TROUBLESHOOTING 5 1 REBREATHING CURVES The rebreathing curves generated during a test are valuable during troubleshooting of the Innocor In this section some typical curves will be shown and explained followed by some typical errors PBF 7 1 Imin YL se Al Va 0 399 l min Good mixing achieved on 2 expiration Recommended to be on 2 or 3 First inspiration from bag is flat The SFe max SFe mix ratio is approx 2 alised
30. from the Gas Cylinder list New exit close down of Innocor New database format 3 02 will automatically convert existing format Innocor software can run as an offline viewer on a memory key New help pages 3 01 28 10 03 Support for setting of default printers 3 00 19 09 03 Innocor software running under Windows XP embedded 2 02 12 09 03 Estimation of bag volume to 40 of VC Automatic stop after 3 breaths after good mixing Support for beep during rebreathing Support for manual entering of blood pressure New parameters Vo2 kg amp A V O2 diff Support for script execution Copy Move Delete etc 2 01 13 03 03 Gas bottle identification implemented 2 00 26 11 02 Support for different languages implemented January 2007 COR MAN 0000 002 IN UK A 7 4 Innovision Innocor Service Manual 2 GENERAL DESCRIPTION 2 1 OPERATIONAL SPECIFICATION Parameters CO Cl SV SI Cardiac output Cardiac index Stroke volume Stroke index Pulmonary blood flow Lung volume or FRC Functional Residual Capacity Heart rate Arterial oxygen saturation Mixed venous oxygen saturation Arterial mixed venous oxygen saturation Oxygen uptake Oxygen uptake pr kg Intrapulmonary shunt fraction Systolic blood pressure Diastolic blood pressure Mean arterial blood pressure Systemic vascular resistance Systemic vascular resistance index Haem
31. from the PGA are transferred to the I F board via the flowmeter print except the MPP signal which is replaced by the flow signal The output of the differential pressure sensor can be offset adjusted using the potentiometer P1 Note the output is temperature dependent and can drift approx 100 200 mV during warm up 2 4 hours The Innocor software measures automatically the offset by connecting the 2 pressure ports P1 amp P2 using a valve on the IF board As default the auto zero intervals are 1 minute The Innocor has a built in standard factory flowmeter calibration table based on a multi stroke calibration Yeh et al 1982 It is recommended to make a daily calibration check of the flowmeter gain The flow is calculated as Flow Gain Table raw signal offset Where Raw signal the output of the differential pressure sensor in volt Offset the offset of the differential pressure sensor found by auto zeroing Gain the day to day gain factor which should be in the range 0 9 1 1 2 gain factors are used one for inspiration and one for expiration 3 5 PULSE AND SpO MODULE Oxygen saturation Haemoglobin is a protein and the main component of red blood cells Haemoglobin transports oxygen from the lungs where oxygen tension partial pressure of oxygen PO is high to the tissues where oxygen tension is low Oxygen saturation SO is defined as the ratio of the amount of bound oxygen to the total oxygen capacity
32. on the cuff indicating the limb circumference for which it is appropriate Use the RANGE FINDER on the inside of the cuff to determine the correct size cuff to use There is a marking of the centre of the bladder indicating the correct position for the cuff over the artery Wrap the cuff around the arm making sure that the Artery Marker is aligned over the brachial artery as shown in figure 2 5 5 1 Ensure that the air hose from Innocor to the cuff is not compressed crimped or damaged Please remember that using a cuff that is the wrong size may give false and misleading results January 2007 COR MAN 0000 002 IN UK A 7 14 Innovision Innocor Service Manual Figure 2 5 5 1 Cuff position on patient arm PRECAUTIONS FOR USE To obtain accurate blood pressure readings the cuff must be the correct size and also be correctly fitted to the patient Incorrect size or incorrect fitting may result in incorrect readings refer to figure 2 5 5 1 above Blood pressure readings may also be affected by the position of the patient and his her physiologic condition and other factors The NIBP option may not operate correctly if used or stored outside the relevant temperature and humidity ranges The nominal range for the result of the blood pressure measurement is Systolic pressure 40 to 260 mmHg Diastolic pressure 20 to 200 mmHg Pulse rate 40 to 200 BPM 2 5 6 Principle of gas filling The rebreathing bag is filled prior to
33. rebreathing time or 1 or O breath rejected 1 or O breath valid for calculation 0104 Slow mixing Check that bag 3 or more breaths rejected Empty bag at the end of is emptied at the end of each 3 or more breaths used in each inspiration inspiration calculation 0105 Slow mixing Only 2 breaths are included Empty bag at the end of Only 2 breaths are included in the analysis each inspiration in the analysis 3 or more breaths rejected Check that bag is emptied at 2 breaths used in the end of each inspiration calculation 0106 Bad mixing Only 2 breaths are included Empty bag at the end of Only 2 breaths are included in the analysis each inspiration in the analysis Original Check that bag is emptied at 3 or more breaths rejected the end of each inspiration 1 or O breath valid for Recalculated using the last calculation 2 breaths Re calculated using the last 2 breaths 0107 High insoluble gas See section 5 4 concentration 0108 Low insoluble gas See section 5 4 concentration 0109 _ Insoluble gas is not found Raw data file corrupted 010A __ Soluble gas is not found Raw data file corrupted 010B High background on soluble Soluble gas is not washed Increase time between tests gas out from previous test At rest 5 minutes are enough during exercise a shorter period is accepted 010C Mouth piece pressure signal Raw data file corrupted not found 010D Test stopped due to high CO c
34. sensor Oxigraf start with disconnection all the external electronic and pneumatic connections 1 Electrical interface to main I F Board 2 Gas inlet coming from the patient panel 3 Gas outlet going to PGA inlet Then unscrew the M3 unbrako below the Oxigraf see figure 7 4 3 and the Oxigraf can be loosened January 2007 COR MAN 0000 002 IN UK A 7 114 Innovision Innocor Service Manual 1 Electrical interface to main I F Board 3 Gas outlet going to PGA inlet 3 ANEN ec Figure 7 4 3 Oxygen sensor exchange loosen screw January 2007 COR MAN 0000 002 IN UK A 7 Innovision Innocor Service Manual 7 5 VALVES Innocor has a total of six solenoid valves Four valves are mounted on the solenoid valve bracket over the I F Board Evac Air String Pneu 2 amp Pneu 1 The last two of smaller size are located on the I F Board Rebreathing amp Zero Cal Four solenoid valves Two solenoid valves a Solenoid valve bracket 3 M3 unbrako screws Figure 7 5 1 Solenoid valves exchange January 2007 COR MAN 0000 002 IN UK A 7 116 Innovision Innocor Service Manual 1 Electronic connection Figure 7 5 2 Definition of ports The solenoid valves used in Innocor are all of the so called 3 2 type This means that all valves have three ports and two positions The three ports are named C Common port NC Normally closed R Relief Normally open In non p
35. the laser diode chip Figure 3 3 5 is a diagram illustrating the wavelength of radiation generated by a laser diode versus temperature of the laser diode The wavelength to temperature relationship rather than being a linear relationship has a stepped characteristic As illustrated in figure 3 3 5 the wavelength of the emitted laser radiation increases gradually over some temperature ranges whereas the wavelength of the emitted laser radiation jumps in wavelength over other relatively smaller temperature ranges The jumps in wavelength are called mode hops because the wavelength of the radiation emitted from the laser diode hops from one wavelength to another A region of operation between two successive mode hops is called a single mode operating operating region In order to generate laser radiation an integral number of half waves of radiation must be reflected within the laser diode chip between two reflective surfaces of the laser diode chip When the optical path length of a laser diode chip is changed within a single mode operating region the wavelength of the emitted laser radiation increases gradually with the change in laser diode optical dimension while the integral number of half waves reflected inside the laser diode does not change When the dimensions of the laser diode chip are changed over a mode hop however the integral number of half waves suddenly changes thereby producing the hop in wavelength Because individual laser d
36. the piston see figure 4 2 4 3 2 Figure 4 2 4 3 Setup for filling calibration 3rd step e Repeat the procedure until the calibration bag is completely empty The calibration bag can be considered empty when it visually looks like the calibration bag when Innocor started the bolus filling Note that the measured volume is one litre minus the reading on the scale The Air Flow is now calibrated e Perform the air calibration procedure again to check that the flow is correct Ideally the desired air volume in this second filling should be somewhat different from the first e g decreased by 50 Irregularities in the airflow are hereby more likely to be revealed If the desired air volume matches the measured air volume within 3 5 relative and the airflow is above 50 ml s the calibration is OK If the air fill is lower than 50 ml s the cause can be that the filling line is occluded January 2007 COR MAN 0000 002 IN UK A 7 72 Innovision Innocor Service Manual 4 3 GAS CALIBRATION CHECK 4 3 1 General consideration When exposing a gas to the inlet of the Innocor the inlet must be disconnected at the RVU end and connected to the T connector on the calibration unit When the gas is opened the flow out of the calibration unit must be higher 200 300 ml min than the flow of the inlet 120 ml min 4 3 2 O calibration The O signal is measured by the Oxigraf sensor and sent to the PGA via an analogue line The calib
37. trigger the opening of the valve at the shift from expiration to inspiration RVU Figure 3 8 3 1 1 Measuring of airway pressure 3 8 3 2 Bag evacuation pressure The Bag Evacuation Pressure is the pressure that arises when the evacuation pump EVAC Pump empties the rebreathing bag The pressure is used to detect when the Rebreathing Bag is empty When this is the case the evacuation pump is automatically turned off Valve Tee ee EVAC i Pump Rebreathing BAG Bag Evacuation gt Control EVAC Se Pressure transducer Figure 3 8 3 2 1 Measuring of bag evacuation pressure January 2007 COR MAN 0000 002 IN UK A 7 55 Innovision Innocor Service Manual 3 8 3 3 Oxigraf converter The Oxigraf analogue input circuit amplifies the oxygen signal from the oxigraf with a factor 10 from 0 1 V to 0 10 V corresponding to 0 100 Oz The circuit converts also the signal from a differential output to a single ended input on the PGA 3 8 3 4 Gas Supply Pressure The Gas supply pressure sensor gives a 0 5 4 5 V output for an input in the range 0 175 bar 3 8 4 External interfaces Buzzer To 4 Port RS232 Card Oxigrat R5232 INA128_2 Na 12673 Sheet 3 VALVEINOD VALVEINO1 VALVEINOZ VALVEINOS VALVEINDS VALVEINOS VALVAINOS VALVEINOT Pulse Oximeter RS232 BUZZER Patient interface a C30 av A
38. vor 1743 ES ma i ek zrl Ip E o7 D i sc SS Cat Di ost E o duing 14 9203 seet Innovision 140 COR MAN 0000 002 IN UK A 7 Figure 8 14 Plumbing diagram with Breath by Breath January 2007
39. 0 002 IN UK A 7 131 Innovision Innocor Service Manual ASSA SS Figure 8 2 Figure 8 3 January 2007 COR MAN 0000 002 IN UK A 7 132 Innocor Service Manual Innovision Figure 8 4 133 COR MAN 0000 002 IN UK A 7 5 Figure 8 January 2007 Innovision Innocor Service Manual Figure 8 6 January 2007 COR MAN 0000 002 IN UK A 7 134 Innovision Figure 8 7 Figure 8 8 January 2007 Innocor Service Manual COR MAN 0000 002 IN UK A 7 135 Innovision Innocor Service Manual Figure 8 9 Figure 8 10 January 2007 COR MAN 0000 002 IN UK A 7 136 Innovision Innocor Service Manual a a 00 N Figure 8 11 Wiring diagram without Breath by Breath January 2007 COR MAN 0000 002 IN UK A 7 137 16 Innovision Innocor Service Manual
40. 0000 002 IN UK A 7 76 Innovision Innocor Service Manual Selected Signal 0199 PGA Reg No 165 Flow Pump OFF Find Signal Clear Graph Stop Graph sD Mean SD SF6 NoLead 0 199 0 0001 2040 CO2 NoLead 5 003 0 0072 700 N20 NoLead 0 998 0 0007 1460 Sensor 02 49 268 0 0314 1569 Signal Stat 1107743 PGA Mix Oxygen Cal Blood Press isc Gun Figure 4 3 4 2 Menu for SNR measurement January 2007 COR MAN 0000 002 IN UK A 7 77 Innovision Innocor Service Manual 4 4 FLOWMETER CALIBRATION The flowmeter is calibrated by an offset again factor a linearization table The offset is as default done automatically every 60 seconds and can be adjusted by the following lines in hardware ini BBB Installed 1 FlowzeroAfterRB 1 FlowZeroInterval 60 The calibration of the gain factor is a user calibration and recommended every day and if the flowmeter screen is changed The calibration of the linearization table is a factory service calibration and is recommended once a year or if the gain factor calibration differs from low amp high flow 4 4 1 Flowmeter gain calibration Enter Setup and select Calibration Adjust Flowmeter O2Adjust i Adjust flowmeter Calculate gas delay Connect a 1 litre or 3 litre calibration syringe to the RVU and set the s w switch accordingly Syringe 1 litre or Syringe 3 litre Calibration performed flow vol F
41. 101 VZf 1 1127 0 8208 0 2540 Oxygen Cal Figure 4 3 3 1 Menu for PGA zero calibration ZT Make Calc 8 3638 Save Blood Press Nom Conc Yol zl Measured Gas Conc 1 00 nzo 1 00 5 00 coz 5 00 0 20 se 0 20 50 00 o 49 14 Mix Signals Amp Phase 12 0906 0 8986 16 2299 0 5549 12 9590 0 1782 Comm Sig 81 934 Press Trans 5 6516 Temp 306 8 Recall Fact Calibration peer Signals Signal Stat PGA Zero PGA Mix Letsch Figure 4 3 3 2 Menu for PGA Mix calibration January 2007 COR MAN 0000 002 IN UK A 7 The Press signal should be 17 19 hPa below ambient i e approximately 83 hPa 101 3 hPa Expose inlet to zero gas 20 O and 80 N2 Wait until amplitude signals are stable should be below 0 1 for SFg 8 CO and below 0 35 for on Oxigraf Status Exit Service wut Reset PGA d HA Oxigraf Status al d Exit Service Innovision Innocor Service Manual Multi step calibration factory calibration A multi step calibration of the PGA signals can only be performed at Innovision or by qualified trained personnel The calibration is performed as a factory calibration and requires the following gases e A zero gas 20 O and 80 No e 3 phase gases 5 N20 1 SFs amp 10 CO all in 20 Oz balance N2 e 3x3 lin span gases 0 1 0 5 amp 5 0 N20 0 02 0 1 amp 1 0 SFs 1 0 5 0
42. 2 5 1 Principle of CO N20 SF measurement The PGA analyser measures the gas components CO N20 and SFe It is well Known that among the gas species of interest in physiological examinations all except monoatomic gases noble gases nitrogen and oxygen absorb specific wavelengths of light in the infrared IR spectrum by intermolecular bindings Therefore in acoustic gas measurements for medical applications Photo acoustic Spectroscopy PAS is used to determine all concentrations except for oxygen When the gas is subjected to intermittent infrared IR light of different gas dependent acoustic signals are produced and detected by a microphone Absorption of light means absorption of energy and causes a heating of the gases vapours and thereby a rise in pressure By pulsation of the energy applied to the gas the rise in pressure will be intermittent thus causing a pressure fluctuation By choosing the pulsation frequency in the audible range the pressure fluctuation becomes an acoustic signal and it is possible to pick up the signal using a microphone 2 5 2 Principle of O measurement The oxygen analyser is an Oxigraf O2 sensor from Oxigraf Inc US The patented Oxigraf sensor uses laser diode absorption spectroscopy in the visible spectrum similar to the absorption method used to measure CO N20 and SFs in the infrared spectrum However oxygen absorption is in a region of the visible spectrum 760 nm where there is no interferenc
43. 2 9 82 2 60 F Accept Mean error 0 29 Use Skip s Volume H Selected 10 10 meena Cancel Offset voltage m 73 90 Figure 4 4 2 4 Final check at different flows The final check of the calibration should show errors below 1 at different flow rates Try to cover the complete physiological range of the subjects Volt to flow ___Destribution Prepare Add Stroke Statistics Filter Cancel gi Table Undefined Strokes loaded 0 Innocor Connected Strokes performed 112 Figure 4 4 2 5 Final flowmeter linearization The distribution curves shows at which flow rates the flowmeter is calibrated Every used sampled is displayed in the normalised distribution plot January 2007 COR MAN 0000 002 IN UK A 7 82 Innovision Innocor Service Manual E c innocor X ES CA 2 innocor File name bbblin1 CAL Save Cancel The flowmeter table must be saved in C Innocor Setup bbblin1 cal in order to be used by the Innocor software afterwards Figure 4 4 2 6 Menu for saving flowmeter linearization January 2007 COR MAN 0000 002 IN UK A 7 83 Innovision Innocor Service Manual 4 5 FLOW GAS DELAY CALIBRATION 4 5 1 Method The Breath by Breath calculation contains an integration of the product of flow and gas and because the gas measurement is delayed through the sample line it is necessary to correct for this delay The delay is typical in the rang
44. 50 board January 2007 COR MAN 0000 002 IN UK A 7 58 Innovision Innocor Service Manual Specifications Used in Innocor CPU Embedded low power NS Geode GX1 300 MHz processor fanless Used BIOS AWARD 256 KB flash memory Used System memory 128 MB SDRAM Used Enhanced IDE interface supports up to 2 EIDE devices 1 used FDD interface support up to 2 FDDs Not used Serial ports 1 serial RS 232 port 1 serial RS 323 422 485 port 1 used for PGA Parallel port 1 parallel port supports SPP EPP ECP Not used Infrared port Shared with COM 2 Not used Keyboard mouse connector Mini DIN connector supports standard PS 2 Not used keyboard and mouse Watchdog timer Software enable disable Not used VGA Chipset NS CS5530 Used Display memory 1 4MB 4 MB used Display type Supports CRT and LCD LCD used Flat panel display mode up to 1024x768 18 bpp 800x600 used CRT display mode up to 1024x768 24 bpp Not used Ethernet Chipset Intel 82559 ER Used Ethernet interface PCI 10 100 Mbps Ethernet IEEE 802 3 U protocol compatible Used USB 2xUSB 1 1 Used 3 9 1 1 BIOS Setup Below is the complete bios set up for the Award BIOS setup of the PCM 3350 The setting has been changed from the default values Standard CMOS setup Hard Disks Type Size Cyls Head Precomp Landz Sector Mode Prim master User 0 0 0 0 0 0 AUTO Prim Slave None 0
45. 6 The output of the line error integrator after both the left and right skirt intervals is integrated is a measure of the line lock error The micro controller reads the integrated line lock error signal LINE ERR via the A D converter and adjusts the laser diode drive current and or thermoelectric cooler current to adjust the wavelengths Wy Ws Wp Wer and Wir in order to correct those wavelengths with respect to the actual wavelength of the peak of the absorption line When the oxygen concentration spectroscopy device is first turned on the wavelengths of the laser radiation emitted from the laser diode are forced to the particular absorption line preselected for operation during device manufacture The forward voltage drop across the laser diode is therefore detected by a laser voltage sense circuit labelled LASER VOLTAGE SENSE in figure 3 3 6 and the signal output from the laser voltage sense circuit is read by the micro controller as an indication of laser diode temperature The micro controller uses the signal output from the laser voltage sense circuit as a measure of laser diode temperature so that the micro controller can control laser diode temperature through the thermoelectric coolers and laser diode drive current such that laser radiation of wavelengths corresponding to the preselected spectral line are generated In some embodiments a thermistor disposed in thermal contact with the housing of the laser diode is used by the micro controller to d
46. 6 025 131 PVC natural ID 3mm OD 5mm 140 mm TUBOO0006 140 132 PVC natural ID 3mm OD 5mm 30 mm TUBO0006 030 133 PVC natural ID 3mm OD 5mm 50 mm TUBO0006 050 134 PVC natural ID 3mm OD 5mm 20 mm TUBOO0006 020 135 PVC natural ID 1 16 OD 1 8 120 mm TUBO0005 120 136 PVC natural ID 3mm OD 5mm 350 mm TUBO0006 350 137 PVC natural ID 3mm OD 5mm 320 mm TUBO0006 320 138 PVC natural ID 3mm OD 5mm 170 mm TUBOO006 170 139 PVC natural ID 3mm OD 5mm 75 mm TUBOO0006 075 140 Viton ID 1mm OD 3mm 160 mm TUBO0002 160 141 PVC natural ID 3mm OD 5mm 130 mm TUBOO0006 130 142 PVC natural ID 3mm OD 5mm 350 mm TUBO0006 350 143 PVC natural ID 3mm OD 5mm 240 mm TUBOO0006 240 144 PVC natural ID 3mm OD 5mm 70 mm TUBOO0006 070 145 PVC natural ID 3mm OD 5mm 60 mm TUBO0006 060 146 PVC natural ID 3mm OD 5mm 55 mm TUBOO0006 055 147 PVC natural ID 3mm OD 5mm 55 mm TUBOO0006 055 148 PVC natural ID 3mm OD 5mm 50 mm TUBO0006 050 149 PVC natural ID 3mm OD 5mm 530 mm TUBO0006 530 150 PVC natural ID 3mm OD 5mm 430 mm TUBO0006 430 151 PVC natural ID 3mm OD 5mm 20 mm TUBOO0006 020 152 PVC natural ID 3mm OD 5mm 100 mm TUBOO0006 100 153 PVC natural ID 1 16 OD 1 8 70 mm TUBO0005 070 154 PVC natural ID 3mm OD 5mm 100 mm TUBOO0006 100 155 PVC natural ID
47. 7 106 Fitting Barb 1 8 27 NPTx1 8 FITOOO34 107 Fitting Barb 1 8 27 NPTx3 16 FITOOO35 108 Fitting Luer Integral 1 8 FIT00028 109 Fitting Y 1 8 FIT00017 110 Fitting N 1 8 1 16 FITOOO15 111 Fitting Y 1 8 FIT00017 112 Fitting Barb 1 8 FIT00013 113 Fitting T 1 8 FIT00016 114 Fitting T 1 8 1 16 FIT00031 115 Fitting L 1 8 1 16 FIT00012 116 Fitting Press In Plug 1 16 FIT00014 117 Fitting N 1 8 1 16 FIT00015 118 Fitting N 1 8 1 16 FIT00015 119 Fitting N 1 8 1 16 FIT00015 120 Fitting Y 1 8 FIT00017 121 PVC natural ID 3mm OD 5mm 20 mm TUBOO0006 020 122 PVC natural ID 3mm OD 5mm 20 mm TUBOO0006 020 123 PVC natural ID 1 16 OD 1 8 100 mm TUBO00005 100 124 PVC natural ID 1 16 OD 1 8 100 mm TUBO00005 100 125 PVC natural ID 1 8 OD 1 4 80 mm TUB00004 080 126 PVC natural ID 1 8 OD 1 4 50 mm TUB00004 050 127 PVC natural ID 5mm OD 8mm 160 mm TUBO0007 160 January 2007 COR MAN 0000 002 IN UK A 7 129 Innovision Innocor Service Manual Item Description Part No 128 PVC natural ID 1 8 OD 1 4 60 mm TUBO0004 090 129 PVC natural ID 1 8 OD 1 4 60 mm TUBO0004 100 130 PVC natural ID 3mm OD 5mm 25 mm TUBOO000
48. A or BBB sensor electonics J413 Patient Interface Panel Patient Interface Panel J414 Fan Power Fan J415 Pneu 1 Valve Pneu 1 Valve J416 Pneu 2 Valve Pneu 2 Valve J417 Air String Valve Air String Valve J418 Evacuation Valve Evacuation Valve J419 Future Use Valve Not connected J420 Inverter PCB Inverter PCB J421 Touch Screen Power Touch Screen PCB J422 Rebreathing Valve optional type Not connected J423 PaW Valve optional type Not connected January 2007 COR MAN 0000 002 IN UK A 7 57 Innovision Innocor Service Manual Circuit Name IC5 Control PAL IC2 Valve PAL U1 MPP pressure sensor U2 Evacuation pressure sensor VAL1 Rebreathing valve VAL2 MPP zero cal PaW 3 9 COMPUTER 3 9 1 CPU module Floppy Interface Connector Intel 82559 ER Ethernet GX1 300 MHz CPU Connector 1 CRT display gt connector Power Connector USB PCM 3350 Backside View Connector PC 104 Expansion interface Keyboard puse Connector Figure 3 9 1 1 CPU module The 10 100Base T Ethernet and USB connector is connected to the data interface panel on the rear side of the Innocor LCD connector and LCD Inverter Connector is connected to the front panel Display of the Innocor COM1 RS 232 is connected to the PGA The EIDE Connector is connected to the hard disk and the Power Connector is connected directly to the power supply The CPU module is an Advantech PCM 33
49. C By combining the information provided by the oscillometric waveform and the cuff pressure the systolic and diastolic blood pressures are determined Analysis of the oscillometric waveform also provides information on the pulse rate which is stored in the microprocessor s nonvolatile memory together with the blood pressure results Oscillometric method Method wherein a cuff is placed on the limb see figure 2 5 5 1 and the pressure in the cuff is increased until the blood flow in the artery is interrupted and then the pressure in the cuff is slowly reduced NOTE During the inflation and deflation of the cuff small pressure changes oscillations occur in the cuff as a result of the arterial blood pressure pulses These oscillations which first increase and then decrease are detected and stored together with the corresponding cuff pressure values in the measurement system With these stored values the systolic diastolic and mean arterial blood pressure values can be mathematically derived using an appropriate algorithm 3 6 2 Description of Safety Operation of the pumps and valves is normally controlled by the main microprocessor which will energise or de energise the components as necessary to perform the blood pressure measurement as described above However the power control for the valves and pump contains an additional redundant backup switch This backup switch is controlled by the safety microprocessor which independently moni
50. E A EEEE AEEA AE gt 1000 1 N20 ora lides barda gt 1000 0 2 SFe pancita litio dea gt 400 5 CO Samping Treguer a a 100 Hz Sample flowrate EEN 120 ml min Rise time 10 000 TE lt 250 ms Calibration check interval c cccececeeeeeeeecaeceeeeeeeesesesnaneeeeeeess 12 months Oxygen sensor OECD eege eege anes oss Laser diode absorption spectroscopy Measuring Tang eG iia ties ater iodo 5 100 Lee ie 1 relative Signal to nOise ratio ce ceeeeeeeeeeeeeeeeeeeeeeeeseeneeeseeaeeees gt 500 21 O2 Sampling TEQU ONC ET 100 Hz SAMpPlING Dee 120 ml min Rise timed NT lt 250 ms Calibration check interval C pont 12 months Calibration check interval 1 point ee eeeeeeeeeeeeeeeeeeeeeeeeeeeaeees 1 month Flowmeter PrifiGiple jee sche naib tesla it iaa Differential pressure Measuring Fanger eege dd 15 l s ACCUIACY eren hwo ieee 2 relative or 20 ml s Resolutions ia Ra 1 ml s samping Be E e EE 100 Hz Lowpass EE 18 Hz Offset calibration interval oe eee eeeenneeeeeeeneeeeeeaeeeeeeaeeeeeeenaeeeeeeaas auto Gain Calibration interval reisseri raien edian a nara ran rca 1 day January 2007 COR MAN 0000 002 IN UK A 7 Innovision Innocor Service Manual Pulse oximeter Oxygen Saturation rangde nn nncnnnnnn 0 to 100 Pulse Rate Range ccceccceeceeceeeeeeeeteeseneees 18 to 300 pulses per minute Measurement Wavelengths Red 660 nm Infrared 910 nm SpO accuracy 70 100
51. EN Use IRQ NA IRQ5 LPT 2 OFF Throttle Duty Cycle 33 3 IRQ6 Floppy Disk OFF IRQ7 LPT 1 OFF IRQ9 IRQ2 Redir OFF IRQ10 Reserved OFF IRQ11 Reserved OFF IRQ12 PS 2 Mouse OFF IRQ13 Coprocessor OFF IRQ14 Hard Disk OFF IRQ15 Reserved OFF PNP PCI Configuration PNP OS Installed No PCI IRQ actived By Level Resources controlled by Auto Reset Configuration Disabled January 2007 COR MAN 0000 002 IN UK A 7 60 Innovision Integrated peripherals Innocor Service Manual IDE HDD Block Mode Enabled Onboard Parallel Port 378 IRQ7 Primary IDE Channel Enabled Parallel Port Mode ECP EPP Master Drive PIO Mode Auto ECP Mode Use DMA 3 Slave Drive PIO Mode Auto EPP Mode Select EPP1 9 IDE Primary Master UDMA Auto Multiple Monitor No Onboard Support IDE Primary Slave UDMA Auto Video Memory size 2 5 M IDE Secondary Master Auto Flat Panel Status Enabled UDMA Onboard Speaker Enabled Flat Panel Resolution 800x600 Onboard PCI Lan Chip Enabled Keyboard input clock 8 MHz Onboard FDC Controller Enabled Onboard Serial Port 1 3F8 IRQ4 Onboard Serial Port 2 2F8 IRQ3 Serial Port 2 Mode RS232 Onboard IR Controller Disabled Password Setting No password must be used 3 9 2 4xserial module The 4 port serial board is an Advantech PCM 3641 PC 104 SW1 Base addr
52. IBP Symptom Cause Recovery No or incorrect BP NIBP cuff not correct Correct cuff position on measurement positioned on patient patient according to figure 2 5 5 1 No or incorrect BP Incorrect size of NIBP cuff Change cuff to correct size measurement No or incorrect BP Too much movement of the Instruct the patient to keep the measurement arm during measurement arm quite during NIBP measurement No response from NIBP No power to NIBP module Inspect NIBP cabling internally in the Innocor No response from NIBP Failure on RS232 cable to NIBP module Inspect NIBP cabling internally in the Innocor Message Safety timeout Internal timer of NIBP module has detected a timeout due to too long time on a high cuff pressure Reset NIBP timer by power off the Innocor and power it on again 5 12 PRINTER Symptom Cause Recovery Cannot print out Printer not connected Connect printer to USB port or if printing is performed via the LAN connect the Innocor to the LAN Cannot print out Printer not powered on Power printer on Cannot print out Printer driver not installed Install printer Cannot print out Actual printer is not the default printer Set actual printer to the default printer Select control panel Select printers Right click on actual printer Get use as default Printer status is ready and document is w
53. Innocor SERVICE MANUAL COR MAN 0000 002 IN UK l A Rev 7 me C 0543 INNOVISION A S Tel 45 65 95 91 00 Lindvedvej 75 Fax 45 65 95 78 00 DK 5260 Odense S e mail info innovision dk Denmark internet www innovision dk Innovision Innocor Service Manual TABLE OF CONTENTS A sech ee ech ech ech ech gh om boah worm a 3 9 INTRODUCTION AND APPLICABILITY OF THIS MANUAL ecesseereees 1 APPLICABILITY OF THIS MANUALE 1 INTRODUCTION TO INNOCOR cece eeeeeeceaeaeeeeeeesesccaneaeseeeeeeetensaeas 1 INTENDED USE ss eege dee eene eege Eege 1 INTENDED APPLICATIONS AND PATIENT POPULATION 2 INTENDED OPERATORS AND ENVIRONMENT cooccccccocononoccnnnnnnncnnnnnncnncnnnnnnnnnnnnnos 2 INNOCOR MODEL S A 3 SUMMARY OF REVISION CHANGES cdococcccccccccocconnonononnnnnncnnnnnnonnnnnnncnnnnnannnncnnnnnno 3 HARDWARE UPDATES ui o ere ee ebe 3 SOFTWARE CHANGES t T e ear aaa ar a a Aee Aaaa a aa A A Er aa r eaaa ae aki iaei 4 GENERAL DESCRIPTION oiioiciioi ii dan 5 OPERATIONAL SPECIFICATION 2 c ccccceceeeeeeeeceeeeeeeeeeeeeseceneaeceeeeeeesensnneeeeess 5 TECHNICAL SPECIFICATION pa a aa ai 7 CERTIFICATION SAFETY STANDARDS coccccccocccoconononnnnnncnnnnnnoncnnnnnnnnnnnannnncnncnnnn 9 GENERAL BLOCK DIAGRAM r ea era are a a ara a aaa aaRS 10 PRINCIPLE OF OPERA TION ccoo cio int Era aE 12 Principle of CO N20 SFg measurement 12 Principle of O measurement ea 12 Principle of flow measure
54. Innocor Service Manual Port ID on solenoid valves sT Gas EvaciFil Pump 159 7 114 162 x 150 104 ma 2 e Ki 75 Fa y A i O r2 A 90 me oe 0 S j da N 163 12 0 D 0 164 3 15 e 14 146 e y R 123 x 141 Gi 112 12 n2 A 112 A 124 2 a Se 243 155 113 E 3 3 S el D leed We Je wel Joy ei E Jey R af gt P a amp wr d 4 Mi 118 g o dir u e N ew OO 4 7 r a 18 d A cy ANC 12 1 t e j 15 112 Ae ra O 15 15 M v A 148 SN i i t 133 37 D F poao t 1 E wh D 153 119 151 135 lt ae 160 d 11 x 5 b 1 mg e E H owen ae m7 138 a en R Airway pressure ref 134 SH iisa a 2 131 4 e l Ainay pressure xo Ed e 137 t Proua 01 152 1 y 187 gt 11 Six tube seen from the 125 28 inside of the cabinet 2 A Manifold Xp l i t l sur deen am 29 42 08 130 without nit valve and gauge
55. O SvaLveinag Sheet KEVAC_STAT Sheet 3 Zus Lef Sheet 4 WALVEINOZ gt vaLVEINOZ Sheet4 MEDER Seu AEN Sheet 4 VALV EINDA gt gt vaLvenos Sheet4 MAMEN SDVALVEINGS Sheet 4 WALVEINOS Se wt Sheet 4 VALWEINOT Seu AEN Sheet 4 Figure 3 8 2 1 Valve control Valve Pump Driver VALVEOUTOD HSMS C670 270 Optional valve type Optional valve type Rebreating gas string Iowpressure model EI VALVEOUTO HSMS C670 270 valve WALZ Pressure transducer zero calipration lowpressure model 0 Bpsio ULN2003 HSMS C670 270 DE SC Pneumatic gas string valve 1 highpressure model 0 30psigy Evacuation pump DS RS taal HSMS C670 270 D6 pp AA pal J415 2 Pneumatic gas string vave2 highpressure model pol ren Bh VALVEINOD 01D WENDI 4 43 VALVEOUTOS WENU VALVEINDS ULN2003 VALVEOUTOT VALVENOS 5 RAUCHS av VEER VEER VALVEOUTOS ev VALVEOUTOS av VALVEOUTOS S VALVEOUTOS HSMS C670 270 HN gt Alfstring valve 4 7 lompressure model 0 bpsich pal D7 R A5 HSMS C670 270 De Re AA HSMS C670 270 Evacuation valve NP Not Present a 2 tompressure model 0 Bp sic y J419 DE 2 d 2 For future use ES bomlF Board xd ex 00 01 PCB No 67951 Organization Title Interacoustics a s xd ex 0000 00001 The PGA via a PAL circu
56. ON TEST The purpose of making an evacuation test is to check the automatically detection of when the bag is empty and to check the evacuation flow 4 8 1 Automatically detection of bag empty Enter the service program of Innocor Connect a gas bottle Connect a standard rebreathing bag to the RVU Select Misc Select Air fill Enter test volume e g 2000 ml Select test Check that the evacuation is automatically stopped when the bag is empty If not a leak could be present in the evacuation line or the setting of the bag pressure sensor is drifted e Inspect for leaks e The tubes to the RVU e The bag connection e Internal tubing of the Innocor 4 8 2 Evacuation flow Enter the service program of Innocor Connect a gas bottle Connect a standard rebreathing bag to the RVU Select Misc Select Air fill Enter test volume e g 2000 ml Select Test Enter 2000 ml as measured volume in order not to change the air filling flow Select Test and measure the time to evacuate the bag The evacuation flow is typical greater than 45 ml sec If not inspect e The tubings to the RVU for occlusion e That the protection caps are removed from the back of the Innocor e If still not acceptable test the air filling flow to see if it is related to the air evacuation pump If the air filling flow is ok the problem is probably in the separate evacuation line 4 9 RVU TEST A leak test of the RVU can be performed by inspecting the rebreathi
57. R od od D 760 ne 7 Bo co 101 dd Gas EvaciFil Pump 180 104 143 142 149 D 15 a e 14 yr 145 y 2 X x 141 i i 12 1 112 Ni c nop We c No cy Wwe c a e P a e wr Ww Wi Mi e e E z r a 18 15 112 H y Es 15 S 148 gt S 133 37 ren 153 119 151 VK 5 5 WM m 152 A e gt xa Onygen iy pressure t ee 136 Sansor S 134 131 x A Airway pressure EN 109 bid l 157 1 Six tube seen a from the Z 128 inside of the 140 Bee EN Manifold r i 1 1 l I SMT SUSITO RPTT F HB 1 without ilet valve and gauge Port ID on solenoid valves C Common port NC Normally closed port Sek tl 129 22 1 nnocor m 4 H i t qa ws 106 702 107 Documenta COR DR 0400 0000 M99 IN Document wie SE AG 271003 R Relief port Plumbing Diagram An 140803 Main Unit Revision Date Figure 2 7 1 Tubing diagram without Breath by Breath January 2007 COR MAN 0000 002 IN UK A 7 20 Innovision
58. R523206 NIBP TRIGGER Y DISCHARGE cts R5232 gt THRESHOLD j a z 5 Serial Out CONTROL borlF Board xd ex 00 01 PCB No 67951 Document Number oro IF Board R8232 Sheet 4 of 4 Rev PSC Date Wednesday February 26 2003 Page NP Not Present Figure 3 8 4 1 External interfaces Buzzer The PGA via a PAL circuit with the following coding controls the buzzer DO D1 D2 D3 D4 D5 D6 D7 Reset_L Beep On Beep_Low Comments x 0 D 0 1 0 0 Beep off x 1 D 0 1 1 0 Beep on high frequency approx 600 Hz x 0 D 1 1 0 1 Beep off x 1 D 1 1 1 1 Beep on low frequency approx 300 Hz Table 3 8 4 1 PAL circuit IC5 coding The IC6 converts the serial signal of the pulseoximeter from TTL to RS232 January 2007 COR MAN 0000 002 IN UK A 7 56 Innovision Innocor Service Manual 3 8 5 I F Board electrical Interconnections 021 14 Cs Figure 3 8 5 1 I F Board electrical interconnections Connector Name Connected to J401 Power IN Power supply J402 Power PGA PGA J403 Oxigraf Oxigraf J404 PGA Aux PGA J405 Oxigraf RS232 SBC J406 NIBP RS232 SBC J407 NIBP Power NIBP PCB J408 High Pressure Gas Supply Sensor Gas Supply Sensor J409 Pulse Oximeter RS232 SBC J410 Analog Oxigraf PGA J411 Gas Fill Evac Pump Gas Fill Evac Pump J412 PGA Analogue PG
59. Soluble Gas y ESAS j Recommended to be below 4 ws rT D Relatively flat regression line on insoluble curve All 3 expirations placed on regression line Expiration before good mixing is relatively close to regression line Figure 5 1 1 Normal rebreathing curves January 2007 COR MAN 0000 002 IN UK A 7 90 Innovision Innocor Service Manual PBF 47 mm YL 24 I Normalised Oxygen i EE vz 0 409 l min Time s Figure 5 1 2 Normal rebreathing curves at rest PBF 17 8 l min YL 34 I YO 2 141 l min Time s Time s Figure 5 1 3 Normal rebreathing curves January 2007 COR MAN 0000 002 IN UK A 7 91 Innovision Innocor Service Manual Failure the dilution of the bag is too high SF o max is approx 8 times higher than the GE mix Solution Instruct the subject to expire a little more at the last expiration before the first inspiration from the bag or increase the bag volume PBF 9 8 Imin YL 86 1 YO 0 676 Imin Figure 5 1 4 Rebreathing curve with a too high dilution of the bag Failure the mixing of the insoluble gas is very slow The software starts to use the data on the 7 expiration despite accurate mixing is not achieved The mouth piece pressure MPP is seen to be weak because the subject is not emptying the bag at each inspiration Solution Instruct the subject to empty the bag at every inspiration and or instruct the subject to expire a little more at the l
60. aiting for printing but is not printing Windows XP Disconnect printer at USB port and reconnect printer January 2007 COR MAN 0000 002 IN UK A 7 Innovision 5 13 SOFTWARE Innocor Service Manual Symptom Cause Recovery Running scandisk at bootup Innocor has not been shut down via the Innocor software Use the Exit in the Innocor software to shut down the Innocor Program execution stops during filling emptying HDU sensitive to pump vibrations Inspect damping of air evacuation pump COR MAN 0000 002 IN UK A 7 January 2007 102 Innovision Innocor Service Manual 6 ERROR WARNING MESSAGES Code Message Cause Recovery 0101 Only 2 breaths are included Only 2 breaths are included Breathe faster or increase in the analysis Breathe in the analysis rebreathing time faster or increase 2 or less breaths rejected rebreathing time 2 breaths used in calculation 0102 Too few breaths Only 2 breaths are included Breathe faster or increase Only 2 breaths are included in the analysis rebreathing time in the analysis Original Breathe faster or increase 2 breaths rejected rebreathing time 1 breath valid for calculation Re calculated using the last 2 breaths 8103 Too few breaths 2 breaths rejected Breathe faster or increase Unable to calculate O breath valid for calculation
61. al Item Description Part No 35 Flat cable 20 pins between IF board and PGA for digital signals CAB00023 36 Data cable between IF board and PGA transmitting oxygen signal CAB00003 37 Tube 1mmx1mm x 270mm Viton TUBO0002 270 38 Tube 1immx1mm x 160mm Viton TUBO0002 160 39 Flat cable 10 pins between IF board and PGA for analogue signals CAB00010 18 40 Flat cable between IF board ver 2 and oxigraf CAB00024 Flat cable between IF board ver 1 and oxigraf crossed CAB00013 41 One way valve Check valve VAL00001 42 Filter on gas input on low pressure side Millex 25 mm FILO0003 Solenoid valve for rebreathing and zero cal X 1 12 S F SOL00002 43 Solenoid valve for rebreathing and zero cal X 2 12 S F from serial no SSC 9 SOL00004 44 M4x10 nylon SCR00033 45 PZ 5x50 SCR00020 46 PZ 5x12 SCR00019 47 PZ 5x40 SCR00022 48 Harddisc HDD00002 Power cable between IF Board and Touch Screen Controller for serial 49 Lg 0226011 to 0427100 l piace Power cable between IF Board and Touch Screen Controller for serial CAB00029 no 04xx101 and newer 50 Ground connection between Bottom Plate and LCD Display CAB00008 51 Power cable between IF Board and Inverter PCB CAB00005 52 Serial cable from PGA to SBC CAB00027 53 BBB sensor electronics SUB00047 101 High Pressure Gas Supply Sensor SUB00012 102 Relief Valve VAL00003 103 Exhaust Port A 1 MEC00108 104 Fitting Manifold SUB00036 105 Fitting Y 1 8 FIT0001
62. ange 20 45 ml s However compare the new bolus flow with the original bolus flow and e g check the pressure of the secondary flow regulator see section 4 2 1 if the difference is more than 10 If the bolus fill is lower than 20 ml s the cause can be that the filling line is occluded or the output pressure of the second pressure regulator is too low If the bolus fill is greater than 70 ml s the output pressure of the second pressure regulator is probably too high January 2007 COR MAN 0000 002 IN UK A 7 70 Innovision Innocor Service Manual 4 2 4 Air filling calibration The calibration of the air filling is a calibration of the air filling flow which typical is in the range of 50 60 ml s An incorrect air filling flow will result in the messages too low or too high insoluble gas concentration after a rebreathing test The accuracy of the air filling flow is more critical than the bolus filling since the main bag volume is coming from the air fill A 5 error on the air filling flow will result in a 4 5 error on the bag volume which again will result in a 4 5 error on most of the calculated results It is like for the bolus flow recommended to routinely check the airflow e g once a year e Turn the 3 way valve so that the calibration bag and the respiratory valve are connected Figure 4 2 4 1 Setup for filling calibration 1st step From the Misc menu choose Air Fill Press the Set Air Vol button En
63. aser is shown in 3 3 3 January 2007 COR MAN 0000 002 IN UK A 7 30 Innovision Innocor Service Manual JP1 test JP4 Figure 3 3 2 Oxigraf oxygen sensor SIDESTREAM FAST OXYGEN SENSOR PUMP Figure 3 3 3 Oxigraf measuring chamber January 2007 COR MAN 0000 002 IN UK A 7 31 Innovision Innocor Service Manual Background information Different molecules absorb different amounts of electromagnetic radiation depending upon the frequencies of the radiation A particular molecule therefore has a unique absorption spectrum of absorption versus radiation frequency Figure 3 3 4 shows a number of absorption lines of gaseous oxygen located in the range of approximately 760 nm to 770 nm at Standard Temperature and Pressure The relative height of the various peaks represents the relative absorption of the oxygen Taller peaks represent more absorption Shorter peaks represent less absorption The baseline represents little or no absorption Absorption 760 762 766 768 Wavelength nm Figure 3 3 4 Oxygen absorption lines at STP The frequency and therefore wavelength of the radiation emitted from a laser diode chip is dependent upon the physical dimensions of the laser diode chip as well as the current density through the laser diode chip Because the size of a laser diode chip is temperature dependent the wavelength of radiation emitted from a laser diode chip can be varied by varying the temperature of
64. ast expiration before the first inspiration from the bag PBF 1 5 Imin YL 23 I YO gt 0 223 l min Figure 5 1 5 Rebreathing curves with a slow mixing January 2007 COR MAN 0000 002 IN UK A 7 92 Innovision Innocor Service Manual Failure the mixing of the insoluble gas is very slow The software starts to use the data on the 6 expiration The mouth piece pressure MPP is seen to be weak the subject is not emptying the bag at the first 3 inspiration Solution Instruct the subject to empty the bag at every inspiration PBF 7 0 Imin YL 86 I YO gt 0 462 Imin Low MPP signal Figure 5 1 6 Rebreathing curves with a slow mixing Failure A spike is present on all the gases at the end of the first 4 inspirations The spike on O is going up against the ambient concentration 20 93 while the spikes on the other gases are going down to 0 The reason for the spikes is because the RVU or sample line is leaking Solution Repair the RVU or sample line PBF 3 1 Imin YL 1 4 I YO 0 227 Ifmin Time s Figure 5 1 7 Rebreathing curves with leak January 2007 COR MAN 0000 002 IN UK A 7 93 Innovision Innocor Service Manual Failure A spike is present on all the gases at the end of the 3 inspiration except on the raw O3 The spikes on the gases are going down to 0 The reason for the spikes is a too high negative pressure when the bag is emptied in which case the gas analyser can fail Note that t
65. ate the pneumatic elements in the RVU without damaging them The port to the bag is closed by inflating the pneumatic element When the rebreathing starts the port to the rebreathing bag is opened by releasing the pressure of the pneumatic element simultaneously with the closing of the port to ambient air The pluming diagram for the RVU control is shown in figure 2 5 7 1 Rebrea thing bag Rebreathing Evac Press gauge LA H Evac Fill vo P 0 45 bar Pump A One way valve O Pneu 2 EE Gi E W LP LLA Airway a fe WW regul press L1 Evac tri P 2 bar string SES H gauge HP Lo N regul Zero cal Q PAW Press P lt 125 bar e Pneu 1 Gas analyser assembly Gas analyser Exhaust Evacuation line exhaust port suction port Figure 2 5 7 1 RVU control diagram January 2007 COR MAN 0000 002 IN UK A 7 17 Innovision 2 6 WIRING DIAGRAM
66. ation can also be a result of an incorrect air filling in which cases the calculated rebreathing results will be erroneous Therefore it is recommended to check the bolus flow routinely e g once a year Note the first filling of a bag after a longer period with pressure in the gas supply can give the warning too high insoluble gas concentration after a rebreathing test This is normal and is caused by a small diffusion of gas through the wall of the tubings The SF gas is heavier with a slower diffusion than the other components and over time the concentration of the insoluble SF gas will increase e Turn the 3 way valve so that the calibration bag and the respiratory valve are connected Figure 4 2 1 1 Setup for bolus calibration 1st step When the calibration setup is ready enter Service menu of Innocor From the Misc menu choose Bolus Fill Press the Set Bolus Vol button Enter the desired bolus volume and press OK e g 300 ml and press OK Note down the original flow speed Press Test Bolus All valves off Close to Reb Bag Pneul E E Close to open Air Pneu2 Set Bolus Vol Air String for Bag fill AIR d Bolus bag fill Rebreathing Test Bolus Airway Zerocal PAW Reb Bag Evacuation EVAC Bag Pump Spare Flow Speed 28 92 mi sec a Signals 1 Signal Stat PGA Zero Ta Misc Exit Service Figure 4 2 1 2 Menu for bolus calibration ELULE January 2007 COR MAN
67. below Model Oxygen sensor Blood pressure sensor Breath by Breath INNOO50 INNO100 y INNO200 y INNO300 y y INNO400 y y INNO500 y y y 1 4 SUMMARY OF REVISION CHANGES AT Sept 2003 First release A 2 Nov 2003 Spare parts section added A 3 Feb 2004 Section Inert Gas Rebreathing Method updated A 4 May 2004 Software User Manual amp Inert Gas Rebreathing Method made as separates documents A 5 Sep 2004 Spare parts list modified AG Mar 2005 Minor updates A T Jan 2007 Breath by Breath option included Calibration procedures updated Typical rebreathing curves included 1 5 HARDWARE UPDATES Feb 2002 Updated with blood pressure measuring function NIBP Feb 2002 I F board updated Nov 2003 New gas supply design incl relief valve New flow pump attenuator New silicone 6 tube Apr 2004 New Innocor RVU replaces the Hans Rudolph valve May 2005 Updated with Breath by Breath January 2007 COR MAN 0000 002 IN UK A 7 3 Innovision Innocor Service Manual 1 6 SOFTWARE CHANGES 5 07 01 11 06 Script Support for updating system files ini 22 06 06 Bug in controlling a manual treadmill protocol corrected 22 05 06 Faster preparation of rebreathing bag Service interval reminder Native country 2 05 06 Updates for the US market Breath by Breath updates New Exp
68. board computer and LAN connection on data CAB00019 21 SE between single board computer and USB connection on data CABO00020 Gas manifold including high pressure regulator for serial no 0226011 to SUB00027 993 0335075 l l Gas manifold including high pressure regulator for serial no 0345076 SUB00035 and newer 23 Power Input Module including switch and panel SUB00013 ee between IF board ver 2 and single board computer COM CAB00025 1 3 Si Flat cable between IF board ver 1 and single board computer COM eco 4 586 CABO00016 i CAB00017 25 EMC finger EMC00001 26 Power cable between power supply and IF board single board CAB00001 computer 27 Flat serial cable between single board computer and touch screen CAB00010 controller 28 Power amp data cable between single board computer and LCD display CAB00007 LCD display including frame but excluding Touch screen controller ES MPC00011 MPC00017 and Inverter MPC00012 SE 30 4x serial port PCM 3641A MPC00004 31 Single board computer PCM 3350F 300MHz MPC00005 32 Flat power 8 data cable between single board computer and hard disk CAB00009 33 Ferrit cable suppressor on LCD cable FERO0001 34 Power cable between IF board and PGA CAB00002 January 2007 COR MAN 0000 002 IN UK A 7 128 Innovision Innocor Service Manu
69. can now gently be released by pulling it upwards see figure 7 2 4 When reassembling the cabinet remember to place the screen cable on top of the computer box see figure 7 2 5 Figure 7 2 1 Disassembly cabinet screws January 2007 COR MAN 0000 002 IN UK A 7 108 Innovision Innocor Service Manual LCD screen Figure 7 2 2 Disassembly cabinet loosen LCD screen Figure 7 2 3 Disassembly cabinet LCD screen on foam January 2007 COR MAN 0000 002 IN UK A 7 109 Innovision Innocor Service Manual Cable from computer to LCD screen Figure 7 2 5 Assembly cabinet location of cable between computer and screen January 2007 COR MAN 0000 002 IN UK A 7 110 Innovision Innocor Service Manual The location of the different screws on the bottom plate is shown below Figure 7 2 6 Location of screws on bottom plate January 2007 COR MAN 0000 002 IN UK A 7 111 Innovision Innocor Service Manual 7 3 PGA The Photo Acoustic Analyser PGA is located on the bottom plate PGA Figure 7 3 1 PGA location When exchanging the PGA unit start with disconnection all the external electronic and pneumatic connections Power Serial communication line to computer Digital I O to I F Board Analogue line to I F Board Oxygen signal line Power to gas inlet pump Gas inlet coming from oxygen sensor or directly from external connection if no oxygen sensor is installed
70. ccccoconononncnncnnnnnnnnnnnnncnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnncnnnnnannnes 2 0 bar MaxvaCuuim ire eege D eege ee ee 580 mbar Power CONSUMPTION 0 0 02 cece aa aaar aat a e aa A aer ae a a aa aa a A aaa EAEE ARAE aa 6 watt Inlet pump RI leide Membrane pump FESO POW eegen Bedeelegte 0 85 litre min Max intermittend pressure oooonocccccnnnnicoccoconocnncconcnnonnnnnnnnncnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnanannanenin n a Waxy ACUUIN 3 28 eege he acne el al a beta este ne ege n a Power CONSUMPTION 00 aaar ae a e a aE aaa e aA EE EA EEEa 0 7 watt January 2007 COR MAN 0000 002 IN UK A 7 Innovision 3 8 MAIN INTERFACE BOARD Innocor Service Manual The function of the I F Board is to make the interface to different transducers via the Photoacoustic Gas Analyser PGA from the Single Board Computer SBC see figure 2 6 1 The I F Board is also managing the distribution of the three different voltages The interface between the SBC and PGA is a standard RS 232 connection The interface between the PGA and I F Board is a combination of analogue and digital lines SBC RS 232 PGA Analog Digital UE Board BBB sensor electronics Figure 3 8 1 Block diagram of interface for the I F Board January 2007 COR MAN 0000 002 IN UK A 7 6 Valve 1 Pump 3 Pressure Transducers Analog o
71. ce dade dee See 51 Power Supplies ita 52 VENRA ino MRE REE A 53 Sensor Interface e idad acabar 54 External interfaces Buzzer 56 I F Board electrical Interconnections cececcececeeeeeeeeeeencaeeeeeeeeeseeeueaeeeeeeeeeetes 57 COMPUTER 0 cad tddi liada 58 January 2007 COR MAN 0000 002 IN UK A 7 Innovision Innocor Service Manual CPU Mute TEE 58 Axserial Module iii ata eee ie eae AAA ida 61 LEDS A AAA ae eee ed Uae ee eet 61 LOUGH NEE 62 large et See teeny erger adenine Ee 62 MAINTENANCE cesscccceecsc cas evi sccndcckuc cae ect codvetuciacvetuhendcebuc EE 63 CALIBRATION CONCEPT AA 63 User Calibration DEE 63 Calibration check by dreirbutors cece eeeeeeeeeeneeeeeeeneeeeeeeaeeeeeenaeeeeeeneeeeneaas 63 Calibration Check at Innovision 2 0 2 2 2 cece ceeceece cece eeeeeeeeeaeeeeeeeeeseneanaeeeeeeeseteneseaeees 64 Enter service mode of Innocor nn teertnnnnn neteet 64 CALIBRATION OF GAS FILLING FLOW cree eeceneaeeeeeeeeeesessscaneeeees 65 Adjustment of low pressure oo eeceeeeeeeeeeeeeceeeeeeeeeeeeeeeeneaeeeseneaeeeseeeaeeesenaaeeeeneaaeees 65 Preparation of bolus and air filling Calibration 0 0 eee eeeeeeeeneeeeeeenteeeeeeneeeeeenaaes 68 Bolus calibrationyis Licor ii tia ts 69 Lelleg Le DEE 71 GAS CALIBRATION CHECK armere eaa aaar aaa AE ATSE EAS 73 General consideraton nn nnnn cnn nnannnnnnnnnn 73 Os ee e TEE 73 COs Ge amp N O calibratiON oococcccccccoonocnconnnnoncnoonoronononononnnrnnrnnnnan
72. designed into one block The electronics consist of the following a Digital Processor Board b Analogue and power supply PCB c Small PCB s which are condition units for PGA sensors It is well Known that among the gas species of interest in physiological examinations all except monoatomic gases noble gases nitrogen and oxygen absorb specific wavelengths of light in the infrared IR spectrum by intermolecular bindings Therefore in acoustic gas measurements for medical applications Photo acoustic Spectroscopy PAS is used to determine all concentrations except for oxygen When the gas is subjected to intermittent infrared IR light of different gas dependent acoustic signals are produced and detected by a microphone Absorption of light means absorption of energy and causes a heating of the gases vapours and thereby a rise in pressure By pulsation of the energy applied to the gas the rise in pressure will be intermittent thus causing a pressure fluctuation By choosing the pulsation frequency in the audible range the pressure fluctuation becomes an acoustic signal and it is possible to pick up the signal using a microphone In terms of rise time and ambient noise suppression a high pulsation frequency is desirable but when choosing the pulsation frequency it has to be taken into consideration that a high frequency results in a short time for the energy to have its effect on the gas and this in turn means that a small signa
73. e 1400 to 1600 ms but can vary from instrument to instrument A change of the inlet sample line can also change the delay A longer delay is normally caused by a reduced inlet sample flow probably caused by a dirty particle filter on the inlet sample line The flow gas delay is calibrated by looking at the gas and flow change during the shift from expiration to inspiration The calculation is taking into account the dead space volume from the inlet out to ambient air which is 45 ml for a standard configuration In order to have an accurate flow gas delay calibration the inspiration must be fast forced and an average of up to 10 breaths is used to improve the determination The calibration of the flow gas delay is critical an error of 25 ms can give a 5 error on the Vo and Vco results It is recommended to perform the flow gas delay calibration every day When performing a Breath by Breath exercise the flow gas delay is as default automatically adjusted when the exercise level exceeds a certain level typical above 1 3 of the subjects maximum exercise level 4 5 2 Setup The automatically adjusted flow gas delay can be turned off in the BBBctrl ini using the following lines flowGasDelay OnlineCalc 1 Co2Calc 0 When the OnlineCalc 1 default the flow gas delay is automatically adjusted When 0 the automatically adjustment is turned off Co2Calc 0 default means that the automatic adjustment only calculates the O dela
74. e Control UYIIMS JUBPUNPIY IPUIAO AJOS SUOMI ONUO JoMOg JOIAUOD 5V Logic Pump amp Valve i Regulator i Supplies Supply H Main Control Circuits Power Suppl i ZE decane Re sinner A To Cuff i Interface Interface Controller Main Connector Page 4 Figure 3 6 2 Simplified functional diagram of Blood pressure module January 2007 COR MAN 0000 002 IN UK A 7 42 Innovision Innocor Service Manual 3 6 1 Description of Operation The major components and interconnections of the Advantage are shown in the Block Diagram The pressure transducer converts the cuff pressure to an analogue output voltage and also detects the small oscillometric waveforms resulting from the patient s arterial pulses The oscillometric waveform is passed through a filter network rejecting artefact and other noise while being amplified The amplifier gain setting is controlled by the main microprocessor to compensate for differences in pulse volume and attenuation expected with different patients and hookups After digitisation of the oscillometric signal by the analogue to digital converter ADC contained in the main microprocessor the signal is further filtered using software filtering techniques before being used by the main algorithm to determine the systolic and diastolic points in the waveform Simultaneously the cuff pressure is measured directly from the transducer output by a different channel of the AD
75. e or absorption by the other gases Also the emission line width of the laser and the absorption line width of O are very narrow less than 0 01 nm compared to perhaps 100 nm for January 2007 COR MAN 0000 002 IN UK A 7 12 Innovision Innocor Service Manual the CO absorption band at atmospheric pressure The spectrally pure laser is thermally tuned precisely to the oxygen absorption line As the oxygen concentration increases the light intensity is attenuated The photo detector response varies linearly with the oxygen concentration 2 5 3 Principle of flow measurement The flowmeter contains a screen with a pressure output on each side of the screen By measuring the pressure drop across the screen the flow can be calculated 2 5 4 Principle of pulse and S O2 measurement Oxygen saturation S O2 expressed as a percentage defines the amount of oxygen carried compared to total capacity It is measured by a two wavelength pulse oximeter The SpO value is measured by a light absorption technique Red and infrared light 660 nm and 910 nm is emitted from the emitter side of the sensor The light is partly absorbed when it passes through the monitored tissue The amount of transmitted light is detected in the detector side of the sensor When the pulsative part of the light signal is examined the amount of light absorbed by arterial hemoglobins is discovered and the saturation level can be calculated PATIENT HOOK UP e Connect the s
76. ensor to the S O2 connector on the Innocor side panel e Attach the pulse oximetry sensor to the patient It is recommended to use the index finger or middle finger e Remove finger nail polish artificial nails etc from the measuring site first e For proper sensor positioning see the instructions for use accompanying each sensor e Do not pull the sensor from its cable PRECAUTIONS FOR USE Pulse oximeters are not able to distinguish between HbCO MetHb and HbO The saturation values may be somewhat higher for smokers Special care should be taken with patients who have burns or carbon monoxide CO intoxication When carbon monoxide intoxication is suspected always confirm the pulse oximetry reading with a blood sample measurement Intravascular dyes may cause erroneous readings For example methylene blue indigo carmine indocyanine green or any substances that contain dyes interfere with the S O2 measurement January 2007 COR MAN 0000 002 IN UK A 7 13 Innovision Innocor Service Manual 2 5 5 Principle of blood pressure measurement The non invasive blood pressure NIBP measurement is an option which may not be installed in your device It consists of an oscillometric NIBP module with a pressure transducer inside Innocor a quick coupling on the side panel a patient cable air hose and an arm cuff The pressure transducer converts the cuff pressure to an analogue output voltage and also detects the small oscillom
77. er HP Gauge Figure 3 7 1 1 The Gas Distribution System with its main components January 2007 COR MAN 0000 002 IN UK A 7 45 Innovision Innocor Service Manual 3 7 2 The components in the GDS Rebrea thing Rebreathing H gt P 0 45 bar Evac Fill e Ve Zero cal Evac P paw One way PAW jase H valve R Differential Net E Les Nc O Pneu 2 S Gas KR Filter E G D Le wl LP Evac Air N regul AS Inlet i string EZE Ly H R Filter NG E ER Oxigraf WE Ke Pressure l RI l M relief Kim W K HP LI Q resul Pneu 1 PGA Press P lt 125 bar gauge x Airway press gauge Differential Attenuator Relief Port Rebrea thing gas Inlet cylinder pump Gas analyser exhaust port Exhaust Evacuation line suction port Figure 3 7 2 1 Gas Distribution System plumbing diagram Port ID C Common NC Normally closed R Relief The evacuation and air string solenoid valves allow air to be filled into and evacuated from the rebreathing bag The evacuation filling pump delivers the required air
78. er in frequency than is the left skirt wavelength ws Similarly the right baseline wavelength wp is located several linewidths higher in frequency than is the right skirt wavelength War The baseline wavelengths wu and wy are generated to determine the relative amount of radiation which passes through the sample cell with little or no absorption in the sample cell versus the amount of radiation introduced into the sample cell The skirt wavelengths wa and wa are generated to determine the degree to which the peak wavelength w of the radiation emitted from the laser diode differs from the actual wavelength of the peak of the absorption line The difference between the peak wavelengths w generated by the oxygen concentration detector and the wavelength of the peak of the actual spectral line is called the line lock error In figure 3 3 7 the magnitudes of the absorption at the left skirt wavelength wa and the right skirt wavelength w do not differ from one another so the oxygen concentration detector is said to be locked onto the January 2007 COR MAN 0000 002 IN UK A 7 35 Innovision Innocor Service Manual absorption line 40 The peak wavelength w is generated so that the magnitude of the radiation detected to have passed through the sample cell at the peak wavelength w can be subtracted from the magnitude of the radiation detected to have passed through the sample cell at the baseline wavelengths and wa w to generate a measure of radiation
79. ero calibration solenoid valve The Gas sampling system can be studied in detail in section 3 1 3 7 3 The operational modes A detailed description of the solenoid valve positions for the various modes is given through a series of figures The highlighted components mean that they are activated The GDS have four different operational modes e GDS in emptying bag mode figure 3 7 3 1 The evacuation filling pump is running and the pneu 1 solenoid valve is activated The rebreathing bag is hereby emptied The evacuation pressure gauge is detecting when the bag is completely empty The evacuation filling pump is then stopped e GDS in Bolus filling mode figure 3 7 3 2 The rebreathing and the pneu 1 solenoid valves are activated Bolus gas flows from the gas cylinder into the rebreathing bag e GDS in Air filling mode figure 3 7 3 3 The evacuation filling pump is running The evacuation and air string solenoid valves are activated allowing ambient air to be filled into the rebreathing bag The pneu 1 solenoid valve is also activated during the session Prior to the shift into rebreathing mode see below the airway pressure gauge is offset calibrated by activating the zero cal solenoid valve e GDS in Rebreathing mode figure 3 7 3 4 The pneu 2 solenoid valve is activated Subject is breathing into the rebreathing bag The gas composition mouthpiece is analysed in the gas analyser assembly Du
80. ess Sp Dip Description Setting 1 6 A3 A8 Base address 200 A9 8 A3 40 A6 011011 B H H B H H B 248 7 Pin 7 MODEO off enhanced mode 1 SW2 Vector address Dip Description Setting on 1 5 Interrupt status register 280H A4 A8 11101 6 Shared IRQ mode MODE 1 j Aaa faini 7 Speed OFF Normal Speed Mode 0 IRQ Only one jumper at IRQ 9 in JP1 JP11 Windows 95 98 NT 2 3 connected Com Port 1 0 Address Connected to 3 248 Touch Screen 4 250 Oxigraf 5 258 NIBP 6 260 Pulseoximeter 3 9 3 LCD The LCDis a 12 1 Colour TFT LCD display with a SVGA resolution 800x600 pixels The LCD is controlled directly from the computer module The backlight inverter PCB is powered from the I F Board and is always on See figure 2 6 1 January 2007 COR MAN 0000 002 IN UK A 7 61 Innovision Innocor Service Manual 3 9 4 Touch The touch screen is a high resolution resistive type Jumper settings 1110 9 8 7 6 5 4 3 2 1 0 The touch is controlled via the serial port 3 on the 4 port serial board and powered from the I F Board See figure 2 6 1 3 9 5 Hard disk The hard disk is a 2 5 with a capacity of 10 GB or more No jumpers are installed corresponding to cable select January 2007 COR MAN 0000 002 IN UK A 7 62 Innovision Innocor Service Manual 4 MAINTENANCE 4 1 CALIBRATION CONCEPT 4 1 1 User calibration a The oxygen sensor may need 1 point
81. etect laser diode temperature January 2007 COR MAN 0000 002 IN UK A 7 37 Innovision Innocor Service Manual 3 4 FLOWMETER The flowmeter consists of 4 parts A fine screen mesh is held in position by 2 parts which again are held in position by a locking ring See figure 3 4 1 for details The screen must be replaced when dirty or if water saliva has passed the filter and entered the screen Flowmeter volume 60 ml total Filter port 30 2 mm conic RVU port 34 50 mm Y Flow resistance 8 10 cm H20 5 l s including RVU Oe Figure 3 4 1 Flowmeter assembly Inside the Innocor a small flowmeter print is placed below the Single Board Computer The print contains an amplifier of the differential pressure signal to a 10 volt signal Differential pressure sensor 163PC01D36 Honeywell Amplifier AD620 Input range 5 H20 Output signal 10 volt Filter Low pass 18 8 Hz Figure 3 4 2 Electrical diagram of the BBB sensor electronics January 2007 COR MAN 0000 002 IN UK A 7 38 Innovision Innocor Service Manual 103 5mm Figure 3 4 3 Electrical diagram of the BBB sensor electronics The flowmeter print is inserted on the 10 pin flat cable containing analogue signals from the I F board to the PGA l e the cable from the PGA is connected to the flowmeter print J1 and a cable from the flowmeter print J2 is connected to the I F board All lines in the cable
82. etric waveforms resulting from the patient s arterial pulses The oscillometric waveform is passed through a filter network rejecting artefact and other noise while being amplified After digitisation of the oscillometric signal the signal is further filtered using software filtering techniques before being used by the main algorithm to determine the systolic and diastolic points in the waveform Simultaneously the cuff pressure is measured directly from the transducer output By combining the information provided by the oscillometric waveform and the cuff pressure the systolic and diastolic blood pressures are determined Analysis of the oscillometric waveform also provides information on the pulse rate PERFORMANCE Blood pressure measurements determined with this device are equivalent to those obtained by a trained observer using the cuff stethoscope auscultation method within the limits prescribed by the American National Standard Electronic or automated sphygmomanometers The performance with common arrhythmias such as atrial or ventricular premature beats or atrial fibrillation has been verified by use of a patient simulator PATIENT HOOK UP The operating steps that are important for correct application are described below and include the selection of a suitable cuff size and correct positioning of the cuff It is important to select the cuff size that is appropriate to the diameter of the patient s upper arm There are markings
83. f a A platform structure equipped with shock absorbers to prevent vibrations to interfere with gas measurements b A gas sampling pump mounted independently of the measurement platform with vibration damping c A Nafion sampling tube which ensures equilibration of the water vapour pressure of the sampled gas with that of the ambient air The tube is connected to the RVU directly from the front panel e Changeable bacterial filter The filter is implemented to protect the gas measuring system from particles in the air and from moisture and microorganisms from human breaths The bacterial filter is fitted with a luer lock fitting The bacterial filter is changed periodically f A flow regulator and associated flow control unit based on differential pressure measurement The unit is used to keep the flow rate constant independent of the patient s airway pressure The flow regulator can regulate the flow of the gas sampling pump from 0 ml min to max pump flow 500 ml min g A broadband infrared blackbody light source with ellipsoidal mirror h A chopper wheel with DC motor i An optical filter unit January 2007 COR MAN 0000 002 IN UK A 7 25 Innovision Innocor Service Manual j A measuring chamber where the chopped infrared light excites the gas molecules k Microphones The microphone measures the vibrations from the excited gas molecules I An acoustic block The transport of sample gas and acoustic dampers is
84. flow for the purpose The evacuation pressure gauge measures the pressure in the rebreathing bag The signal is used to determine when the rebreathing bag has been completely emptied during an evacuation mode The HP regulator High Pressure and the LP regulator Low Pressure serve the purpose of regulating the highly varying gas cylinder pressure down to a constant working pressure at 0 45 bar The pressure relief valve ensures that pressure higher than 3 5 bar is not exposed to the low pressure side in case of failure in the HP regulator The rebreathing solenoid valve delivers the bolus gas for rebreathing bag gas mixture The Pneu 1 and Pneu 2 solenoid valves control the inflatable pneumatic elements in the RVU Respiratory Valve Unit The one way valve prevents air in the inflated pneumatic elements in the RVU from escaping into the rebreathing bag during a bolus filling The airway pressure gauge measures the mouthpiece pressure Among several applications this signal is used for the timing of the patient breath with the position of the RVU The gauge is offset calibrated by activating the Zero calibration solenoid valve The BBB option contains an extra and more precise differential pressure transducer in parallel with the airway pressure gauge January 2007 COR MAN 0000 002 IN UK A 7 46 Innovision Innocor Service Manual The offset of the differential pressure transducer is also calibrated by the z
85. guration Alternatively it can be performed as a part of an exercise protocol where the rebreathing manoeuvres are done at pre programmed intervals workloads By using a pulse oximeter the heart rate HR can be measured during the test and used to derive the stroke volume SV etc The arterial oxygen saturation SpO2 indicates whether the oxygenation is normal and thus if there is a significant intrapulmonary shunt SpO2 lt 95 An oscillometric non invasive blood pressure BP measuring system is also included as an option It is designed to take blood pressure measurements including systolic SYS diastolic DIA and mean arterial pressures MAP By combining CO and MAP the systemic vascular resistance SVR can be determined The BBB Breath by Breath option provides measurements of gas exchange parameters including oxygen uptake carbon dioxide excretion ventilation and end tidal concentrations plus a number of derived parameters These parameters are determined by simultaneous measurements of the respiratory flow and gas concentrations when breathing ambient air The respiratory flow is measured by means of a differential pressure type flowmeter pneumotachometer placed between the respiratory valve unit and the patient The gas exchange calculations are carried out online for each breath between the rebreathing tests This gives the opportunity to perform an incremental exercise test on a bicycle ergometer or treadmill and measure the p
86. he difference between the monitor photo detector current during the baseline intervals and the signal photo detector current during the measurement of sample cell absorption at the skirt and peak wavelengths is detected If oxygen is present in the sample cell during skirt and peak intervals the voltage of the signal output from the photo amplifier labelled PHOTOAMP will be negative during the skirt and peak intervals The circuit labelled O2 ABSORPTION INTEGRATOR to derive an unscaled output signal OXY ABSORP integrates this voltage signal OXY ABSORP is indicative of the amount of oxygen absorption due to the spectral line Integration is used rather than simple sampling of the peak photo amplifier output in order to provide noise reduction The magnitude of the signal OXY ABSORP is read by an on chip A D converter of a micro controller The micro controller determines percent oxygen based on the value of the OXY ABSORP signal A measure of the line lock error is required to maintain the radiation of the laser diode locked onto the absorption line of interest The line error detector labelled LINE ERROR DETECTOR in figure 3 3 6 inverts the magnitude of the voltage signal output from the photo amplifier PHOTOAMP during the right skirt interval Both the non inverted left skirt photo amplifier voltage output and inverted right skirt photo amplifier voltage output are integrated by a line error integrator circuit labelled LINE ERROR INTEGRATOR in figure 3 3
87. he spike is not present on the raw O signal only on the normalised O signal because of the normalisation against the insoluble gas which has a negative going spike The spike is NOT a leak Solution Instruct the subject to empty the bag but without unnecessary pressure PBF 13 2 Imin YL 3 0 I YO gt 1 960 Imin Normalised Oxygen Note No spike on raw O Spike due to heavy bag emptying Time Figure 5 1 8 Rebreathing curves with spikes Failure The rebreathing frequency is very low The first breath is at 8 min the second and third at 12 min Minor spikes is also presents Solution Instruct the subject to breathe faster PBF 3 5 min YL 44 1 YO gt Imin Figure 5 1 9 Rebreathing curves with a low respiration rate January 2007 COR MAN 0000 002 IN UK A 7 94 Innovision Innocor Service Manual Failure The oxygen signal is missing The detection of expiration is based on the missing oxygen signal and fails Solution Repair the oxygen sensor Oxigraf The Expiration based on can be set to CO until the oxygen sensor is repaired Missing oxygen signal Incorrect detection of expirations Figure 5 1 10 Rebreathing curves with a missing oxygen signals Failure The bolus and air is not mixed well in the rebreathing bag The detection of the SF concentration in the bag based on the max value fails This will overestimate the V and thereby the PBF CO and Voz Solution C
88. heck that the bag is free floating during filling and that the filling tube is correctly mounted VO 0 533 min Failure First inspiration shall be flat indicating good mixing in the bag Figure 5 1 11 Rebreathing curves with an initial bad mixing of the bag January 2007 COR MAN 0000 002 IN UK A 7 95 Innovision Innocor Service Manual Failure The background on the soluble gas is too high due to recirculation and or missing washout of the lungs between 2 tests Solution Wait a little longer between tests It is recommended to wait at least 5 minutes at rest and down to 3 minutes at higher exercise PBF 46 Imin YL rat YO2 0 273 l min High background on soluble gas Time s Figure 5 1 12 Rebreathing curves with a high background on the soluble gas January 2007 COR MAN 0000 002 IN UK A 7 96 Innovision Innocor Service Manual 5 2 GAS SUPPLY SYSTEM GAS BOTTLE SYSTEM Symptom Cause Recovery No gas bottle pressure No power to I F Board Inspect power cabling to I F reading Board internally in the Innocor No gas bottle pressure Failure on analogue cable Inspect analogue cable from reading from pressure sensor pressure sensor to IF board No gas bottle pressure Failure on analogue cable Inspect analogue cable from reading from PGA to IF board PGA to IF board Item 39 optional via BBB sensor electronics CAB00018 No sound from inlet pump Inlet pump defect Return I
89. ibration is insufficient since it assumes a constant conductance over the entire flow range In the flowmeter linearization a look up table is generated which contains voltage to flow conversion factors also referred to as gain factors below for a number of equidistantly spaced voltages By table look up each measured voltage is converted to a flow value by multiplying the corresponding gain factor from the table The Innocor has a built in standard factory flowmeter calibration table based on a weighted averaging technique Yeh et al 1982 whereby a series of multiple strokes from a precision calibrated syringe are made A generation of the linearization table is a factory calibration and should only be performed at Innovision or by qualified trained personnel The calibration procedure is e Let the Innocor warm up for at least Y hour e Leave Innocor software and go to Windows On the Innocor main screen press right top corner followed by left top corner Select Flowmeter Calibration from C Innocor ShortCut or C Innocor Program Press Calibrate Connect a gas bottle in order to close the rebreathing port during calibration Connect a 3 litre syringe to the flowmeter Press Prepare see figure 4 4 2 1 Select New Table Press Add Stroke see figure 4 4 2 1 Note the offset voltage see figure 4 4 2 2 It should be in the range 200 mV If not adjust it see section 3 4 Fill and empty the syringe 5 times see notes bel
90. ies with the requirements of the system standard EN 60601 1 1 LAN interfaces ee e Sept stat erate olds tes oh ate he weal ons Se ot St tac es ee at 10 100 Mbps TY e Ethernet TCP IP iP address default tas ste sects tess a rA a ete 10 0 0 x Workgroup default inniinn rara INNO_WRKGRP Computer name default ooconnncccnnnnnccccnnnocccccnnancccnnnnncnnnno Innocor serial no Logon from remote com puter access to c innocor databases c innocor rawdata amp c innocor export User access User Names ota a eidele E beeesz InnoUser Pas MO tirao innopass Super user access access to all User Name ac InnoSuper A EE superpass Exercise I F Elmed EGT 1000 ergometer Ergoline VarioBike 550 ergometer Ergoline 800 amp 900 ergometers Ergoline ergoselect ergometers Lode Examiner ergometer Lode Excalibur ergometer Monark 839 ergometer HP Cosmos Series treadmill January 2007 COR MAN 0000 002 IN UK A 7 Innovision Innocor Service Manual Rebreathing valve Pneumatic operation Disposable bacterial viral filter for single patient use Hans Rudolph Valve 8200 series Bag dE ad Space cch ili ide dada 13 ml Instrument dead space rebreathing excl bag dead space 102 ml Instrument dead space prior to rebreathing eeeeeeeeeeseteeeeenees 110 ml Innovision Respiratory Valve without Breath by Breath Bag dead Space EE 13 ml Instrument dead space rebreathing excl bag dead s
91. ill Syringe A 3 04714 7 litre Y 3 08626 3 05415 3 08143 3 05946 Calibrate 3 03958 3 03842 3 04203 3 03790 medium medium Fill Empty OK Exit Figure 4 4 1 1 Menu for flowmeter gain calibration 0 98102 0 98444 Empty the syringe Press Calibrate to start the calibration Fill the syringe at a relatively low rate without bumping at the end When the s w is ready empty the syringe again at a low rate Repeat the filling and emptying until 2x5 strokes have been applied and the OK button is highlighted January 2007 COR MAN 0000 002 IN UK A 7 78 Innovision Innocor Service Manual e Increase the flow rate at each of the 2x5 strokes in order to try to cover the physiological test range e Press OK if the new gain values are in the range 0 9 to 1 1 otherwise replace the flowmeter screen and repeat the calibration Note The flowmeter is automatically offset adjusted prior to each 2x5 strokes The measured volumes should be within 2 relative after a gain calibration i e 0 02 litre 1 litre calibration syringe and 0 06 litre 3 litre calibration syringe If this is not the case a calibration of the flowmeter linearization table is needed 4 4 2 Calibration of flowmeter linearization table The conductance characteristic of the flowmeter a pneumotachometer is not absolutely linear This means that when highly accurate flow measurements are required a linear cal
92. iodes typically are manufactured having slightly different physical dimensions at a given laser diode temperature the wavelengths at which a number of laser diodes will experience mode hops typically varies from laser diode to laser diode A spectral absorption line of a material which happens to occur at a wavelength corresponding with the wavelength of a January 2007 COR MAN 0000 002 IN UK A 7 32 Innovision Innocor Service Manual mode hop of a particular laser diode will result in the particular laser diode not being able to produce laser radiation of the proper wavelength corresponding to that spectral line A small change in temperature will result in the particular laser diode generating laser radiation which skips over the spectral line Furthermore a laser diode chip typically has a region of operation in which the laser radiation produced is not monochromatic Two or more wavelengths of laser radiation may be simultaneously produced This is known as multi modal operation Moreover the temperatures at which such multi mode laser diode operation occurs can change over the lifetime of a laser diode Despite the above described problems associated with laser diodes the Oxigraf nevertheless uses a laser diode to generate a highly monochromatic source of radiation which is tunable to the wavelength of a spectral absorption line of a material under analysis In for example the spectroscopic determination of concentration of oxygen mul
93. ion line suction port Figure 3 7 3 2 GDS in filling bolus mode Evac Fil Pump Evac Press gauge Differential Air Exhaust string E i Pressure IN relief Relief Port Rebrea thing bag Rebreathing H gt P 0 45 bar One way HP regul P lt 125 bar Evacuation line suction port Figure 3 7 3 3 GDS in filling air mode January 2007 COR MAN 0000 002 IN UK A 7 Zero cal PAW Airway press gauge Differential Gas analyser exhaust port Innovision Innocor Service Manual Rebreathing P 0 45 bar Evac Fill Zero cal c Ne Evac Press Pump One way PAW gauge L Differential nef k S A R R Evac Air string i Pressure Lf M relief Airway press gauge Differential Relief Port analyser exhaust port Exhaust suction port Figure 3 7 3 4 GDS in rebreathing mode 3 7 4 Specifications Gas Distribution System General specifications Description sideren i lela High Pre
94. ions available as a service kit from Innovision a Low pressure regulator output pressure Pressure sensor See section 4 2 1 b Bolus filling flow rate A 1 litre calibration syringe and a rebreathing bag See section 4 2 3 c Air filling flow rate A 1 litre calibration syringe and a rebreathing bag See section 4 2 4 d Oxygen sensor A gas mixture with 50 O or pure oxygen supplied from a calibration gas bottle with constant flow regulator and a T piece plus air for periodical 2 point calibration See section 4 3 2 e Photo acoustic analyser A gas mixture with 50 O 1 N20 0 2 SF 5 CO bal N2 supplied from a calibration gas bottle with constant flow regulator and a T piece for periodical check or gain calibration In the unlikely event that major deviations from the expected readings are found the device must be returned to Innovision for multi point manufacturer calibration See section 4 3 3 f Gas pressure sensor Zero point adjustment requiring no tools bottle unscrewed See section 4 6 January 2007 COR MAN 0000 002 IN UK A 7 63 Innovision Innocor Service Manual g Flow Gain calibration of the flowmeter using a 1 or 3 litre calibration syringe If major deviations are found gt 10 a new calibration of the flow linearization table shall be performed using a 3 litre calibration syringe See section 4 4 1 amp 4 4 2 4 1 3 Calibration Check at Innovision In accordance with the Instructions for
95. is difference circuit The current from the detector photodiode D3 is however not supplied directly to the difference circuit Rather the current from the detector photodiode D3 is supplied to an input lead of a multiplier circuit labelled MULT and the output of the multiplier circuit MULT supplies the current to the second input lead of the difference circuit In operation there are five basic time intervals During a first time interval the left baseline wavelength wy is generated during a second time interval the left skirt wavelength wa is generated during a third time interval the peak wavelength w is generated during a fourth time interval the right skirt wavelength w is generated and during a fifth time interval the right baseline wavelength wy is generated During the baseline wavelength time intervals a null switch is closed by the signal labelled NULL A baseline null integrator controls the second input lead of the multiplier circuit so that the magnitude of the current supplied to the second input lead of the difference circuit from the signal photo detector D3 exactly equals the magnitude of the current supplied to the first input lead of the difference circuit from the monitor photo detector D2 After the baseline interval the null switch is opened so that the baseline null integrator will maintain this condition during the skirt and peak time intervals when the absorption at the skirt and peak wavelengths is detected As a result t
96. ision Screw finger tightened in an already formed thread 7 1 2 Flexible tubing SAI S ER GAS aN e yE A Y z Y Y Z E Innocor Service Manual VY YN Ys GE SS LLL a ES S EE SY ES US XX Screw fully locked Flexible tubing is if used correctly very reliable and easy to use If used in combination with a hose barb fitting it also offers a relatively high operational pressure Hose barb fitting January 2007 COR MAN 0000 002 IN UK A 7 106 Innovision Innocor Service Manual How to ensure leak proof connections By following the step by step instruction below leak tightness can be achieved in most cases 1 Disconnect the faulty component using a scalpel 2 Cut off the deformed part of the flexible tubing using the Tube Cutter 3 Connect the new component using your fingers only YS January 2007 COR MAN 0000 002 IN UK A 7 107 Innovision Innocor Service Manual 7 2 CABINET To disassembly the cabinet perform the following steps Sele Remove gas bottle Disconnect power Unscrew the 2 nylon screws at the handle see figure 7 2 1 Unscrew the 8 screws at the bottom of the Innocor see figure 7 2 1 Note the 2 screws near the gas cylinder interface are longer than the others and that the 2 screws at front are shorter Tip the LCD screen gently forward and place it on foam in order not to damage the screen see figure 7 2 2 The cover
97. it with the following coding controls the valves and pumps Document Number Sheet 2 of 4 Rev Psc Date Wednesday February 26 2003 Page SAG707 IF Board Valve Drive y o S N g wo O A D5 D6 D7 Pneu 1 Pneu 2 E Reb Eve Paw Pump Spare Comments All valves off Normal breathing Rebreathing Valve test Valve test Valve test Valve test Valve test Ojafjoj iO ajoj ajo afojojojojojojojo X lt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt Valve test o O G O Oj o0j oj ojo o jojojojojojojojojo x Respiratory valve blocked o Bag evacuation a jaj a OJO OJOJO O O 2 O o JO a jojojojojojo ajojo o Joj o jojojojojo ajojojo ojo o Oj oj ojoj ojojojo ajaj o jojojo ojoJojojo a ja Oo ojo O0Jo o o ojo Oo Val o joja ojojojoJojojo o jojo ajojojojo o o ojo Bag evacuation pump off amp bag empty Bag filling with bolus gas Bag filling with air Bag filling with bolus and air Paw pressure zeroing alalolo a 3 la o o joj o joj x Olalla Ja a a IO OO joj lol lof a o joj a O OO JO oO OO o o Ja A Ja a o joj a jaj O o joj o jojo Bolus gas injection during rebreathing x x x x x x x lt Future use
98. l is generated and that the sensitivity will be limited With an appropriate pulsation frequency the amplitude of the signal is equivalent to the amount concentration of molecules in the measuring chamber Figure 3 2 2 and 3 2 3 shows a schematic representation of an acoustic measuring system as described above Light from an IR source is reflected from a gold plated elliptic mirror towards a window in a measuring chamber Before it enters the measuring chamber it passes a spinning chopper wheel causing pulsation of the light For analysis of different gases it is necessary to divide the IR beam in different parts with respect to pulsation frequency as well as wavelength To accommodate this the chopper wheel divides the IR light in different beams with different pulsation frequencies and each IR light beam then passes individual optical filters Each optical filter allows only a specific wavelength of light to pass through and the different wavelengths of light correspond to the IR absorption spectra of the gases vapours the system is designed to measure See figure 3 2 4 The IR light beams differing in both pulsating frequency and wavelength enter the measuring chamber through a window and excite the different gases they are optimised for by the optical filters Due to the absorption of energy the gas will expand in the chamber at frequencies equal to the pulsating frequencies of the IR light beams The periodic expansions of the gas vapo
99. ment renerne 13 Principle of pulse and S O2 Measurement oocoonocccnnoccnoccccnonnnnnnnnnnnnn cnn ncn nan nnnnnn cnn 13 Principle of blood pressure measurement ococcococcoccccccnccocononononnnnnncnnnnnnnnnnnnnnnnnnnnns 14 Principle of gas Un EE 15 Principle of RVU CONTON iio lt ea 17 WIRING DIAGRAM EE 18 TUBING DIAGRAM isnat ease e eaa eea an aeria eiaa 20 EXTERNAL CONNECTOR CONFIGURATION iidococccccccccccnnonnnocnnnnncnannannnnncnnnnncnnnns 22 Pulsoximeter das 22 KAREN 22 USB ipsa hee tart ete seat rea ae ei hate oot eet teen 22 LAN EE 23 DETAILED DESCRIPTION OF MODULES cccssseeeeessseeeeesseeeeeeeseseenenseeeeees 24 GAS SAMPLING SY STEM ieia a a a a iea 24 CO N20 SFg MEASUREMENT coocccccccococonononnnnnnnnnnnnnnnnnnnnnncnnnnnnnnnnnnnnnrnnnnnnnnnnnnnno 24 Os MEASUREMENT wu cient ieee el iar ee aed ee tddi 30 FLOWMETER sico lo A id A dad T 38 PULSE AND SpO gt MODULE 200s ethene e add aii 39 BLOOD PRESSURE MODULE neinn e a a e ea i a 41 Description of Operation 43 Description of Safely coccion Eed NENNEN edu 43 Calibration ies ticos ira 43 EIS den EE 44 GAS DISTRIBUTION SYSTEM coco eeneg saute aae a aaae aa aire aaa aaia 45 Re lee ET 45 The components inthe GD SS etiosimiade riada labia 46 The operational MOdes secciones ariete dea ita airis 47 Specifications Gas Distribution System ssssesseerrernseeeeetnrtnrsreertrnrtnnstrerenne nnn 49 MAIN INTERFACE BOARD rea eea tats hte dasates llas seed dan
100. mper which is enabled in Innocor January 2007 COR MAN 0000 002 IN UK A 7 43 Innovision Innocor Service Manual 3 6 4 Electronic The power supply provides voltage step up and regulation functions to drive the other electronic components The pump and valves run directly from the input VPV voltage supply there are software protections to detect low V logic and low VPV The complete electronic system is built on a single circuit board eliminating internal interconnection systems and thus improving reliability The unit is constructed with surface mount technology with the exception of the pneumatic and mechanical components further enhancing reliability and reducing size and weight The LK1 jumper must be installed during calibration 4 gt SE LK1 Pump J1 Data Power Figure 3 6 4 1 Print layout of Blood pressure module January 2007 COR MAN 0000 002 IN UK A 7 44 Innovision Innocor Service Manual 3 7 GAS DISTRIBUTION SYSTEM 3 7 1 Description The Gas Distribution System GDS controls the pneumatics for the Respiratory Valve Unit RVU and the filling evacuation of the rebreathing bag The figure below shows the location of the main components in the GDS Solenoid valves Evacuation Airstring Pneu 1 Pneu 2 Evac Fill Pump Interface Board Rebreathing soleniod valve Zero cal solenoid valve Airway press gauge HP Regulator Gas Cylind
101. n 1 Transmit Data TD 2 Transmit Data TD 3 Receive Data RD 4 Receive Data RD January 2007 COR MAN 0000 002 IN UK A 7 23 Innovision Innocor Service Manual 3 DETAILED DESCRIPTION OF MODULES 3 1 GAS SAMPLING SYSTEM The gas sampling is taken at the mouthpiece on the RVU The gas is going through a Nafion Tube which equilibrates the gas to the environment with respect to humidity The gas passes a filter which protects the analysers from dust and small particles Next the gas passes the Oxigraf where the oxygen level is analysed and the PGA where the other gas components are analysed The PGA contains a flow regulator which controls the flow to approximately 120 ml min The gas passes an attenuator and finally the pump before the gas is leaving the outlet placed on the back of the Innocor The purpose of the attenuator is to damp the pulsations from the pump PGA pump Attenuator Outlet lt lt A PGA LH Oxigraf Rebrea thing bag Filter A II A IA Figure 3 1 1 Gas sampling system 3 2 CO N20 SF MEASUREMENT The PGA analyser measures the gas components CO N20 and SFe It consists of a measurement platform and a control electronics unit January 2007 COR MAN 0000 002 IN UK A 7 24 Innovision Innocor Service Manual A photo of the PGA is shown in figure 3 2 1 Figure 3 2 1 PGA analyser The PGA with gas sampling system consists o
102. n Innocor to Innovision for replacement of bag pressure sensor Evacuation does not stop Bag pressure line leaking not connected to sensor Inspect tubing internally in the Innocor Evacuation does not stop Bag port not closed inflated Check gas bottle pressure Evacuation does not stop RVU leaking insert defect Change insert or RVU January 2007 COR MAN 0000 002 IN UK A 7 97 Innovision Innocor Service Manual Symptom Cause Recovery Cannot trig on MPP signal Occluded MPP tube ref Inspect tubing external internally in the Innocor Cannot trig on flow signal Missing flow signal Check flowmeter and external internal tubing in the Innocor Inspiration expiration message reversed Wrong setup or flowmeter mounted incorrectly Check Hardware ini MPP Sign 1 without flowmeter Sign 1 with flowmeter Evacuation does not stop and is not emptying the bag Evac or Air string valve defect Replace valve s SOL0003 or return Innocor to Innovision 5 4 GAS SIGNALS Symptom Cause Recovery No signal on CO N20 SF amp O2 Gas inlet not connected or defect Check or replace gas inlet No signal on COz N20 SF amp O2 Inlet pump defect Return Innocor to Innovision for replacement of inlet pump No signal on CO N20 SFs amp O2 Connector to inlet pump defect Replace
103. n the I F Board see section 3 8 5 Unscrew the three M5 nuts on the vibration dampers Remove the pump plate Remove and replace if necessary the flexible tubing Remove protective caps Unscrew the pump mounting screws and replace the pump DIANA Solenoid Valve air string evac Air filling and evacuation lt Powered from I F Board zl 7 Vibration damper 2 M5 nut Va one of three Solenoid valve vac air string AA evacuation A Protective caps z 4 Flexible tubing 3 Pump plate 6 Mounting screws Figure 7 8 1 Air filling and evacuation pump exchange January 2007 COR MAN 0000 002 IN UK A 7 Solenoid valve J l Solenoid Valve hi Air filling and Solenoid Viave Evac Fill E Valve 121 Innovision Innocor Service Manual 7 9 ACOUSTIC ATTENUATOR How to exchange the acoustic attenuator Disconnect tube to inlet pump suction Disconnect tube to PGA outlet Cut strips around the attenuator wOn gt AA Wz INZ A SN To PGA outlet A Ki To inlet pump Figure 7 9 1 Acoustic attenuator damper exchange January 2007 COR MAN 0000 002 IN UK A 7 122 Innovision Innocor Service Manual 7 10 COMPUTER The single board computer is located in a box in the upper right corner Computer Grounding of front panel Figure 7 10 1 Computer location seen from the fr
104. ng curve after a test If the CO signal shortly drops significantly during the test and the O at the same time changes significantly against 20 95 a leak in the RVU is probably present Note that a missing nose clip or a high emptying pressure can also give signals drop on the CO signal A high emptying pressure can result in a drop in all the signals CO2 SFs amp N2O but not the Oz If a high emptying pressure is causing drops in the gas signals the reaction is immediately seen on the CO SFs amp N2O signals This means that the spikes drops normally will be seen on the expiration part of the curve In case of a leak inspect that January 2007 COR MAN 0000 002 IN UK A 7 88 Innovision Innocor Service Manual e The gas bottle pressure is higher than 5 bar e The balloon in air BbB port is fully inflated in order to block the port e No visible leaks are present in the RVU or bag If still not acceptable try to replace the RVU insert or gas inlet If this doesn t help either inspect the internal tubing of the Innocor 4 10 REBREATHING TEST USING A SYRINGE The purpose of making a rebreathing test using a syringe is to check the determination of the VL e Set the piston to 1 litre on a 3 litre syringe e Connect the syringe to the mouth port of the RVU e Make anormal rebreathing using a bag volume of 1 5 litre move the piston according to the target breathing frequency e Convert the calculated VL to ATP using the
105. nnocor to Innovision for replacement of inlet pump No sound from inlet pump Connector to inlet pump defect Inspect replace connector to inlet pump No inlet flow Inlet pump defect Return Innocor to Innovision for replacement of inlet pump No inlet flow Tubing to inlet pump defect Inspect replace tubing from gas sample line to inlet pump through PGA and oxigraf No inlet flow Acoustic Attenuator defect Inspect replace Acoustic Attenuator Item 18 SUB00033 Bolus filling flow too low too high LP regulator out of calibration or defect Adjust LP regulator see section 4 2 1 or return Innocor to Innovision for replacement of flow regulator Bolus filling flow depending on gas bottle pressure Defect LP regulator Return Innocor to Innovision for replacement of flow regulator Gas leaking out of Pneu1 on six tube when Innocor is not powered and RVU disconnected Defect Pneu1 valve Replace valve SOL0003 Gas leaking out of Pneu2 on six tube when Innocor is not powered and RVU disconnected Defect Pneu2 valve Replace valve SOL0003 Gas leaking out of RB air on six tube when Innocor is not powered and RVU disconnected Defect RB air valve Replace valve SOL0003 Bottle warning No gas Connect a new bottle 5 3 REBREATHING MANOEUVRE Symptom Cause Recovery Evacuation does not stop start Bag pressure sensor defect Retur
106. nual control pressure on Pneu 1 Enter the service program of Innocor Select Misc Select Press Sensor Read the gas bottle pressure Select Valve Press Pneu 1 to activate deactivate pressure on Pneu 1 line Adjust the LP regulator according to table 4 2 1 1 If the flow regulator is changed the bolus filling must be recalibrated see section 4 2 3 As mention above when decreasing pressure first reduce to a pressure less than that desired next deactivate activate Pneu 1 line before increasing to the desired pressure January 2007 COR MAN 0000 002 IN UK A 7 66 Innovision Innocor Service Manual Elapsed time Sve Sts Press Sensor Valve Beep Unscrew and remove the Hottte Press Gain Signal Offset Gass Bottle slowly from C 62 10 43 8 1 92 Y 22 0 Innocor Afterwards when signal is Press Unit bar stable select Gain Offset or just Offset Signals Signal Stat PGA Zero PGA Mix Oxygen Cal Blood Press Figure 4 2 1 3 Menu for reading the bottle pressure Elapsed time Bolus Fill Air Fill Valve Normal Breathing Valve Control Function Close to Reb Bag Pneul Close to open Air Pneu2 cs neu 1 D1 EVAC D7 RVU Blocked Air String for Bag fill AIR Bolus bag fill Rebreathing REB D5 SC Golf pa ae Bag Air Fill p Signals Signal Stat Oxygen Cal Blood Press Misc Airway Zerocal PAW Reb Bag Evacuation EVAC Bag Pump Spare
107. obin To measure SO non invasively the pulseoximeter shine light through the finger or earlobe But then it measures a mixed sample of venous and arterial blood To measure the arterial blood alone the pulse oximeter technique is used which considers only the oscillating components of the optical signals Complex fluid dynamic models describe pressure and blood flow in arteries However we only need to consider the propagation of the pressure pulse in arteries which normally is sharply increasing during heart contraction decreasing until the aorta valve is closed and can have a second peak afterwards when backflow to the heart stops The pulseoximeter is mounted on top of the IF Board January 2007 COR MAN 0000 002 IN UK A 7 40 Innovision Innocor Service Manual Figure 3 4 3 Pulseoximeter finger clip 3 6 BLOOD PRESSURE MODULE Advantage fp i OEM BP Module Modo 2 0 Figure 3 6 1 Blood pressure module January 2007 COR MAN 0000 002 IN UK A 7 41 Innovision Innocor Service Manual Safety Circuits H Oscillometric Channe 1 7 Filter Stages Amplifier Stages 7 Gain Oscillometric Output i Safety Microcontroller i Analog to Digital H Converter Gain Control Pneumatic Control Inter micro communications Pump amp Valve Safety Override Main Microcontroller Data Memory Program Memo H Pump amp Valv
108. oglobin concentration Body surface area Breath by Breath gas exchange parameters Resp Freq FOZet FCO2et Ve VO2 Ve VCO2 HR SpO2 Load Speed Slope Oxygen uptake Oxygen uptake pr kg Carbon dioxide excretion Respiratory exchange ratio Expiratory minute ventilation Alveolar ventilation Anatomical dead space Tidal volume Respiratory rate End tidal concentration of oxygen End tidal concentration of carbon dioxide Expiratory quotient ventilatory equivalent for oxygen Expiratory quotient ventilatory equivalent for carbon dioxide Heart rate Arterial oxygen saturation Exercise level on bicycle ergometer Running speed on treadmill or Pedal speed on bicycle ergometer Slope on treadmill The following parameters can be calculated after an incremental exercise test AT RC Anaerobic threshold measured by V slope Respiratory compensation measured by V slope Rest and max values of all Breath by Breath parameters li Requires manual input Requires optional sensors Beaver WL Wassermann K Whipp BJ 1986 A new method for detecting anaerobic threshold by gas exchange J Appl Physiol 60 2020 2027 January 2007 COR MAN 0000 002 IN UK A 7 5 Innovision Innocor Service Manual Gas analyser Principle titi cite aoa a Photo acoustic Spectroscopy Components and ranges eeeeeee N20 0 2 5 SFs 0 0 5 CO2 0 10 lee ie 1 relative Signal to nOisSe ratio eiei rneer iatna A
109. oing spikes on CO Gas inlet defect Change gas inlet N20 SF amp O2 Down going spikes on CO RVU balloon to ambient air Adjust LP regulator see N20 SF amp Oo not inflated completely due to section 4 2 1 or return too low LP pressure Innocor to Innovision for service Spikes on CO N20 SF amp O2 RVU leaking insert defect Change insert or RVU O goes down every 1 2 seconds Failure on line scan in the Oxigraf Try a longer warm up of the Innocor O goes down to 0 during test Beep support is enabled on an Innocor which does not support beep but instead resets the Oxigraf Turn beep off in setup or disable beep support in Hardware Ini file 5 5 RESULTS Symptom Cause Recovery Incorrect FRC Qc Vos etc Incorrect calibration Re calibrate PGA No or incorrect BP measurement NIBP cuff not correct positioned on patient Correct cuff position on patient according to figure 2 5 5 1 No or incorrect BP Incorrect size of NIBP cuff Change cuff to correct size measurement No or incorrect BP Too much movement of arm Instruct patient to keep arm measurement during measurement quite during NIBP measurement Expiration detection fails Delay on O and or PGA Correct delay via PGAMON gases incorrect program 1982 O delay 325 1974 CO delay 0 1973 N20 delay 30 1975 SFs delay 0 Unstable HR SpO Too much m
110. on Innocor Service Manual 3 3 O2 MEASUREMENT The oxygen analyser is the Oxigraf O2 sensor model X1004 X2004 from Oxigraf Inc US A picture of the Oxigraf is shown in figure 3 3 1 and a drawing in figure 3 3 2 Figure 3 3 1 Oxigraf analyser The Oxigraf is controlled via a serial line from the SBC The oxygen measurement is acquired through an analogue output The oxigraf consists of 3 major parts e A measuring chamber with laser diode and detector e A PCB with control electronics e A mounting structure for PCB and measuring chamber In case of performance problems housekeeping data such as laser temperature current and power can be acquired via the serial line The patented Oxigraf sensor uses laser diode absorption spectroscopy in the visible spectrum similar to the absorption method used to measure CO N O and SF in the infrared spectrum However oxygen absorption is in a region of the visible spectrum 760 nm where there is no interference or absorption by the other gases Also the emission line width of the laser and the absorption line width of O are very narrow less than 0 01 nm compared to perhaps 100 nm for the CO absorption band at atmospheric pressure The spectrally pure laser is thermally tuned precisely to the oxygen absorption line As the oxygen concentration increases the light intensity is attenuated The photo detector response varies linearly with the oxygen concentration The measuring chamber with l
111. oncentration during Increase bag volume CO2 level test exceeded max CO limit breathing frequency or max defined in the setup CO limit 010E Test stopped due to low O2 O2 concentration during test Increase bolus fraction bag level dropped below min O limit volume breathing frequency defined in the setup or reduce min O limit 010F Test stopped due to Rebreathing test could not Increase breathing exceeding Max rebreathing be completed within the frequency or max January 2007 COR MAN 0000 002 IN UK A 7 103 Innovision Innocor Service Manual time maximum rebreathing time defined in the setup rebreathing time Gas analyser not ready Further measurement not possible See section 5 8 Gas analyser not installed PGA not configured to be installed in Hardware ini Check hardware ini See Innocor Software User Manual COR SUM 0000 001 Error in software version format Software code for new software is not correct Check serial number of Innocor and contact Innovision Gas analyser code conflict New software not installed correctly Contact Innovision Only ID below 2147483647 is valid Contact your vendor to update patient database Database version is an older version and can only support numbers The new database can support numbers and characters Use as it is or send the database to Innovision in order to update i
112. onnonnrnnnanonanos 75 ONIRIGSE 6 OT 76 FLOWMETER CALIDRATION 78 Flowmeter gain Calibration ccccceeeeeeeeeeeeeeeeeeneeeeeeaeeeeeeaeeeeeeneeeseeeneeeenenaes 78 Calibration of flowmeter linearization ole 79 FLOW GAS DELAY CALUIBRATION nnee nt 84 Mech cts tear tects eege ege 84 SOLU o PERTE ATE EESE ee hee habe can 84 Calibration procedure nn nnnn nn nn nnnnn ne nnnnnn 85 GAS PRESSURE SENSOR OFFSET CALUIDGRATION 86 LEAK TEST ON GAS SUPPLY SYSTEM ooococcccococonccnnccnonnononnnnnnnnnnnnnnnnnnncnnnnncnnnns 86 Internal gas supply leak Test 86 Total gas supply leak est 87 EVACUATION TEST eine AA A A E ee ed 88 Automatically detection Of bag emp 88 Evacuation Be EE 88 RVU TES T EE 88 REBREATHING TEST USING A GRINGEN 89 CALIBRATION OF TOUCH SCREEN cococococonccnccnconconononnnnncnnonnnnnnnnnncnnnnnnnannnncnncnnn 89 CALIBRATION OF NIBP cts ooo ei A eee 89 IROUBLESHOO HN ed eau EE EE eae 90 REBREATHING CURVES i cirrosis Eden Ehe etna sear 90 GAS SUPPLY SYSTEM GAS BOTTLE SYSTEM ooococcccccccconononnnncnnnnnnnnannnncnnnnnnn 97 REBREATHING MANOEUVRE ococcccooconononcconccnnnnonnnnnnnnnncnnnnnnnnnnnnnnnnnnannnnnnnnnnnnenanns 97 EE LO 98 EISE 99 Fee EE EE 100 SCREEN TOUCH denges Geesen 100 STEE 100 CO XIGRA RF ash EE 100 PUESE OXIMETER 20 it tt dia 101 IN cet ree cia eae eet Ae eae eh carts a A ete ede a Aedes eee 2 101 PRINTER 22s oc EE ek e EE Ee 101 eeng WT 102 ERROR WARNING MESSAGES 0 c ccccceseeeeeee
113. ont January 2007 COR MAN 0000 002 IN UK A 7 123 Innovision Innocor Service Manual COM4 COM5 COM6 Oxigraf NIBP Pulseoximeter COM3 Touch controller To network LAN COM1 PGA Figure 7 10 2 Computer location seen from the right side January 2007 COR MAN 0000 002 IN UK A 7 124 Innovision Innocor Service Manual In order to disconnect the computer perform the following steps Remove top panel by unscrewing two M3 screws Remove side panel by loosening four M3 screws Disconnect 4xserial cables Disconnect cable to LCD Disconnect network cable Disconnect 2xUSB cables Disconnect power cable Loosen 4 xM3 screws and disconnect computer 0 JO Om P oO IDA Se Sei So NS 1 2xM3 6 To 2xUSB 7 To Power 5 To Network ge Figure 7 10 3 Disassembly of computer step 1 January 2007 COR MAN 0000 002 IN UK A 7 125 Innovision Innocor Service Manual 8 4x3M Figure 7 10 4 Disassembly of computer step 2 If a hard disk shall be replaced follow the steps below 1 Disconnect hard disk cable 2 Loosen two M3 screws 3 Remove four M3 screws 2 4xM3 1 Hard disk cable Figure 7 10 5 Exchange of hard disk step 1 January 2007 COR MAN 0000 002 IN UK A 7 126 Innovision Innocor Service Manual a 4 Hard disk Figure 7 10 6 Exchange of hard disk step 2 January 2007 COR MAN 0000 002 IN UK A 7 127
114. ort facilities Support for HR amp BP from exercise devices Faster preparation of rebreathing bag 01 12 05 Support for variable flow zero calibration interval 01 09 05 Printout to Microsoft EMF files Enhanced Metafile 12 08 05 Support for bolus concentration up to 50 06 05 Breath by Breath gas exchange calculation Improved regression lines in Data View New symbols Improved exercise protocol Scandisk in case of unauthorized power down 17 12 04 Bug in O2 adjust corrected 09 04 Exercise protocol 02 3 0 19 04 04 Calculation of SVRI changed Calculation of SVO2 changed New handling of calculation warnings Standby of gas supply Improved bottle pressure handling Improved script handling Improved service menu Improved handling of databases in case of off nominal shut down New trend function with support for display of parameters in tables and XY plots Support for manual entering of HR SpO Load Speed Slope Support for User defined parameters Support for calculated parameters based on database values Support for rebreathing bag volume down to 0 5 litre Improved on line detection to avoid bag opening in the shift from inspiration to expiration A test is always saved also in case of errors in order to display the data to determine the reason for the error Support for deleting a gas cylinder
115. ovement of the finger clips during test Tape the line to the hand No HR during BP measurement NIBP cuff and pulse oximeter cuff on same arm Place pulse oximeter sensor on other arm or complete the BP measurement before January 2007 COR MAN 0000 002 IN UK A 7 99 Innovision Innocor Service Manual 5 6 RVU Symptom Cause Recovery Valve is not clicking opening No power to I F Board Inspect power cable to I F Board High resistance during inspiration only Hans Rudolph RVU Ring missing on the dynamic restrictor on the RVU Insert missing ring or lift up the restrictor 5 mm Ports not inflated Defect LP regulator or wrong setting Adjust pressure up see section 4 2 1 Balloons jumps off only Hans Rudolph RVU Defect LP regulator Adjust pressure down see section 4 2 1 5 7 SCREEN TOUCH Symptom Cause Recovery Screen is black after power on No power to SBC Check mains amp check fuses Inspect power cable to SBC internally in the Innocor Screen is white after power on Not enough power to SBC Check power connector No reaction on touching the buttons on the screen Failure on cables to touch screen controller Inspect cabling internally in the Innocor Item 7 27 amp 49 No reaction on touching the buttons on the screen Out of calibration Recalibrate touch See section 4 11
116. ow for a recommended procedure If all strokes are performed OK press Accept If the Gain curve is noisy press the Filter button one or more times see figure 4 4 2 3 Repeat Add Stroke until the accuracy on all volumes are below 1 see figure 4 4 2 4 Press Prepare Select Save table Save file as C Innocor Setup bbblin1 cal see figure 4 4 2 6 Press yes to overwrite file Press Cancel Press yes to save changes Press Exit A recommended procedure for generating the flow table is e Start with a single fill amp empty of the syringe at 1 2 l s and save it in order to find a start point for the inspiration amp expiration gain e Perform 2x5 stokes below 1 l s January 2007 COR MAN 0000 002 IN UK A 7 79 Innovision Innocor Service Manual Perform 2x5 stokes in the range 1 to 3 l s Perform 2x5 stokes in the range 3 to 5 l s Perform 2x5 stokes above 5 l s Perform 2x5 stokes in the range 3 to 5 l s Perform 2x5 stokes over the complete range and repeat it until the volume accuracy is below 1 Note e Fill and empty the syringe without bumping at the end e Use the Filter function to remove noise on the Gain curve e The first time calibration of the high flow disturbs the flow calibration at medium flow and it is therefore necessary to repeat the medium flow calibration after the high flow calibration e Itis possible to use a 1 litre syringe for the flowmeter calibration but it is not recommended It is
117. owered position the C and R ports are connected In powered position the C and NC ports are connected For the four larger solenoid valves the port is defined as shown in the figure below The P port is the NC port and the A port is the C port The end of the valve is the R port Note that during production the valve housing is rotated to get a better tubing layout January 2007 COR MAN 0000 002 IN UK A 7 117 Innovision Innocor Service Manual pen O F Figure 7 5 3 Layout of large solenoid valve For the two smaller solenoid valves located on the I F Board the ports are defined as Figure 7 5 4 Layout of small solenoid valve When exchanging a valve perform the following steps Large valves 1 Disconnect electronic connection 2 Disconnect pneumatic connections Note the C NC and R ports 3 Unscrew the two M3x6 unbrako screws on the solenoid valve bracket see figure 7 5 1 4 Note the right A amp P port position see figure 7 5 2 when replacing the valve Small valves 1 Disconnect pneumatic connections Note the C NC and R ports 2 Unscrew the two small screws on the solenoid January 2007 COR MAN 0000 002 IN UK A 7 118 Innovision Innocor Service Manual 7 6 POWER SUPPLY How to exchange the power supply Disconnect mains supply Disconnect Output power connector Disconnect Output power connector Unscrew the two mounting screws located on the bo
118. pace amp filter 87 ml Instrument dead space prior to rebreathing excl filter 67 ml Innovision Respiratory Valve with Breath by Breath Bag dead space ae tai 13 ml Instrument dead space rebreathing excl bag dead space amp filter 95 ml Instrument dead space prior to rebreathing excl filter 75 ml Dead space of BBB port Of RU 40 ml Filter dead space PALL 2ml cano nan nano 41 ml Flexible tubes tica dias 56 ml Gas supply Gas Copmposltlon nono nononono 5 N20 1 SF6 94 O2 Cylinder Capacity occcoonocccccnnoccccconconnccnonancnnnnnnncncnnna 18 liters 0 15 124 bar Typical number of tests using automatic dilution with air 75 2 3 CERTIFICATION SAFETY STANDARDS KI EE Medical Device Directive EN GOGO 12462 Auge ee eseu E General Requirements for Safety EN 60601 1 1 Safety Requirements for Medical Electrical Systems EK LEET Electromagnetic compatibility EN 865 1007 Pulse oximeters Particular requirements EN 1060 1 1008 Non invasive sphygmomanometers Part 1 General requirements EN 1060 3 1007 Non invasive sphygmomanometers Part 3 Supplementary requirements for electromechanical blood pressure measuring systems January 2007 COR MAN 0000 002 IN UK A 7 Innovision Innocor Service Manual 2 4 GENERAL BLOCK DIAGRAM Innocor General Block Diagram Op
119. ponse time of the thermoelectric cooler control loop the laser diode drive current control loop has a relatively fast response Because the absorption lines of oxygen are so narrow it is generally not possible to tune the laser radiation to the peak absorption wavelength of a desired spectral absorption line and to forever thereafter measure absorption through the sample cell The wavelength of the radiation emitted from the laser diode is therefore frequently adjusted to keep the laser diode radiation locked onto the spectral absorption line of interest January 2007 COR MAN 0000 002 IN UK A 7 34 Innovision Innocor Service Manual LASER VOLTAGE OFFSET LASER CURRENT PWM D A CONVERTER FIG 3 5V Figure 3 3 6 Block diagram of Oxigraf Figure 3 3 7 is a diagram illustrating a spectral absorption line 40 in relation to the operation of the oxygen concentration spectroscopy device of figure 3 3 6 when the oxygen concentration spectroscopy device is locked onto the spectral absorption line 40 The spectral absorption line illustrated in figure 3 3 7 is drawn having an exaggerated width WI for illustration purposes The laser diode D1 of figure 3 3 6 is controlled to emit laser radiation of five different wavelengths a left baseline wavelength wy a left skirt wavelength ws a peak wavelength w a right skirt wavelength Wan and a right baseline wavelength w The left baseline wavelength wy is located several line widths low
120. ption of the Innocor and its sub modules Section 3 gives a more detailed description of the Innocor Section 4 describes the maintenance of the Innocor Section 5 gives a troubleshooting for the Innocor Section 6 lists the error warning messages given by Innocor Section 7 describes the disassembly and reassembly of the Innocor In the following all functions and options of Innocor are described Some of the functions described or shown may not be available on the device you are using 1 2 INTRODUCTION TO INNOCOR 1 211 INTENDED USE Innocor is a compact point of care device intended to be used for non invasive measurement of cardiac output and related cardiopulmonary parameters Cardiac output CO is defined as the volume of blood pumped by the heart per unit of time blood flow in litre per minute The measurement is non invasive i e does not necessitate catheterisation or any other penetration through a body orifice or the body surface in that it is based on a pulmonary gas exchange method called inert gas rebreathing IGR The operating principle of Innocor is to let the patient breathe minute quantities of a blood soluble and an insoluble gas in a closed breathing assembly for a short period The blood flowing through the lungs effective pulmonary blood flow PBF absorbs the blood soluble gas and therefore the disappearance rate is proportional to the blood flow Other factors affecting the distribution of the blood soluble gas
121. ration of the O signal can be performed in both the Oxigraf and the PGA A complete calibration of the O signal is performed by first calibrating the Oxigraf then the PGA A simpler 1 step calibration is also possible by adjusting the baseline of the Oxigraf 1 step calibration user calibration e Let the Innocor warm up for at least 10 minutes e Expose inlet to ambient air 20 93 O e Enter the Setup of Innocor e Press Calibration e Press O2 Adjust e Press Start when current signal is stable e Wait for the calibration to complete e Press Save Make a Single point Adjustment of the Oxygen Signal e Apply atm air Approx 20 93 Oxygen to the inlet Wait for the signal to be steady Variations less than 0 2 Press Start to begin the adjustment The process takes from 30 to 60 sec To save the calibration press Saye Current signal Atm Oxygen value Figure 4 3 2 1 Menu for 1 step oxygen calibration January 2007 COR MAN 0000 002 IN UK A 7 73 Innovision Innocor Service Manual Complete 2 step calibration distributor calibration Let the Innocor warm up for at least 10 minutes Enter Setup of Innocor Press Service to enter the service program Press the tab Oxygen Cal Press Set High Conc Set concentration to 100 or 50 Expose inlet to high O2 concentration 100 or 50 Press Accept Signal when signal is stable Dig Oxygen Expose inlet to ambient air 20 93 Oz Press Se
122. ring all the four modes the Gas analyser assembly is pumping air from the RVU through the Gas analyser and out the Gas analyser exhaust port Rebrea thing Rebreathing P 0 45 bar Evac Press Evac Fill Zero cal PAW One way gauge Differential Oxigraf Optional regul P lt 125 bar Ainway press gauge Differential Relief Port analyser exhaust port Exhaust suction port Figure 3 7 3 1 GDS in emptying bag mode Evacuation line January 2007 COR MAN 0000 002 IN UK A 7 47 Innovision Innocor Service Manual processes e RVU i l Rebrea thing bag Rebreathing P 0 45 bar Evac Fill Zero cal Evac Press rump One way PAW gauge H H Differential ncf e l NC y Pneu 2 R R NC i c Evac Air string Ke c R 7 LA K mA Pressure i IN relief Si HP regul P lt 125 bar Ainway press gauge Differential Relief Port Gas analyser exhaust port Exhaust Evacuat
123. rogress of cardiac function pulmonary function and gas exchange at the same time Innocor runs under the Windows XP Embedded operating system on an integrated single board computer However knowledge of Windows is not required to operate the device The device is operated via a simple touch screen interface Simply touch press the buttons on the screen to invoke the desired functions There is no significant warm up time required for use of Innocor 1 2 2 INTENDED APPLICATIONS AND PATIENT POPULATION Innocor can be used in a variety of medical fields where knowledge of cardiac output and gas exchange is important e g cardiac exercise stress testing heart failure cardiac surgery hypertension pulmonary hypertension haemodialysis and pacemaker programming lt can be used both in rest and exercise e g with patients who have no symptoms in rest or light exercise The method involves no risk or pain to the patient The only requirement is that the patient is capable of understanding the instructions from the operator and performing the manoeuvre well 1 23 INTENDED OPERATORS AND ENVIRONMENT Unspecialised nurses and paramedics in all parts of the health care system can use Innocor However qualified medical personnel should always supervise the user January 2007 COR MAN 0000 002 IN UK A 7 2 Innovision Innocor Service Manual 1 3 INNOCOR MODELS Innocor is produced in different models An overview of the models is given in the table
124. scceeeeneseeeeeneseeeeeseseenenseecenes 103 DISASSEMBLY AND REASSEMBLY ccsceccceeseeeeeeeeseeeeesesceeeesssenenseeceees 105 January 2007 COR MAN 0000 002 IN UK A 7 Innovision Innocor Service Manual GENERAL SERVICE INFORMATION 105 Screws for thermoplastics cccccceceeeeeeeeceeceeeeeeeseceeeaeceeeeeeeseeecceaeaeeeeeeeeeteenaees 105 Flexible tubing nerean endear adv i udoved EEEEEE tddi 106 CABINE Tiida Base ies no ieee Mier eeh 108 er A Mor tag Maoh ed noe te Mae ends 112 OXIGRA Exa ci esate atte Mesias A Aneel 114 VALVES EE 116 POWER SUPPLY ege Eeer ege 119 INLET PUMP iat aed at Roe doe en le eds 120 AIR FILL BAG EVACUATION PUMP 2 cece cecccecceceeeeeeeeeeeee eter ee tetecnieeeeeeeeteee 121 ACOUSTIG ATLENUATOR dirias 122 COMPUTER aries dite te atte do 123 SPARE PARTS enge shen a d 128 January 2007 COR MAN 0000 002 IN UK A 7 Innovision Innocor Service Manual 1 INTRODUCTION AND APPLICABILITY OF THIS MANUAL 1 1 APPLICABILITY OF THIS MANUAL This service manual provides information required to maintain and repair all models of the Innocor This manual is applicable for the current production revision Section 1 Section 1 gives an introduction to the Innocor Differences between models are summarised in section 1 3 Section 1 4 lists history of this document Section 1 5 lists the hardware changes made to the Innocor and section 1 6 the software changes Section 2 gives a general descri
125. signals CO SFs 4 N20 can be performed by a 2 step calibration or a multi step calibration The 2 step calibration adjusts the zero point and the gain of the signals The multi step calibration adjusts gain offset linearity and cross talk It is recommended to have the CO SFg amp N20 checked routinely e g 1 time a year Gain amp offset calibration distributor calibration e Enter Setup of Innocor Press Service to enter the service program e e Press the Tab PGA Zero Oo Let the Innocor warm up for at least hour The temperature of the gas analyser shown in the menu should approx be 15 K higher than room temperature 273 K 0 CH Press Oxygen Conc and enter 20 N20 Press Make Calc Press Save Press the tab PGA Mix Wait until amplitude signals are stable Press Make Calc Press OK Press Save Apply pure N2 or N2 O2 mixture to the inlet The vol pct of SF6 CO2 or N20 must be zero PGA is now calibrated with respect to offset on the CO SF amp N2O signals Expose inlet to mixture gas 50 O 1 N20 0 2 SF 5 CO bal N2 Check or enter the gas concentrations of the mixture gas PGA is now calibrated with respect to gain on the CO2 SFs amp N20 signals 20 00 Oxygen Conc Measured Signals ST icici PGA Zero Calculated values Amplitude Phase Comm Sig Z 0 0353 1 1267 Press 83 620 0 0047 0 0254 0 8525 Trans 8 2943 0 0048 0 1208 0 2698 Temp 306 4 0 0
126. ssure oxygen compliant system Max leak Tate aniier ioi aei nra i e iae leas lt 5 ml hour standby EE lt 50 ml hour operation Rebreathing Gas Cylinder Descriptor cito ENEE High pressure aluminium cylinder with relief valve Water Capacinet eei eei delia 0 15 litre Material iia tardo Aluminium 6061 T6 Brass Stainless steel Viton CIGANING RE Cleaned for oxygen service Max Service e 124 bar Mintest pressure stevens a a an eagles 186 bar Maxcleak Fate ii eh nailed dE E lt 10 litre hour The Gas Cylinders are manufactured and inspected in accordance with U S Department of Transportation DOT 3AL and Transport Canada TC 3ALM requirements and Arbejdstilsynet Denmark TT 0030 Make sure that both the male and female gas connections are kept clean and free from oil grease and hydrocarbons before screwing the cylinder onto the device Use no lubricant Use only cleaning agents that do not leave organic residues NOTE To reduce friction gas cylinders are supplied with a small amount of a special lubricant for oxygen service on the threaded part Krytox GPL 205 Do not remove this lubricant January 2007 COR MAN 0000 002 IN UK A 7 49 Innovision Innocor Service Manual High pressure Regulator Description Non relieving high pressure regulator with o ring sealed piston Inlet DESST eher a Meni nade hiya eae ens 5 to 206 bar Flow TEE 2 bar Elwen E hee ee 8 0 slpm 1 0 slom 62 bar Materials
127. supplied into the sample cell A single photo detector a photodiode D3 is used to generate a signal indicative of the magnitude of the laser radiation which is transmitted through the gas in the sample cell Using the monitor photodiode D2 as a reference the oxygen concentration spectroscopy device determines the relative amount of laser radiation which is absorbed by the gas in the sample cell A coarse adjustment of laser radiation wavelength is performed by coarsely controlling the temperature of the package or housing containing the laser diode The temperature of the laser diode housing is cooled with thermoelectric coolers to the approximate laser diode temperature desired The temperature of the laser diode housing is measured either by a thermistor in close thermal contact with the laser diode housing or by measuring the magnitude of the temperature dependent forward voltage drop of the laser diode itself Because the laser diode housing and the associated sample cell assembly has a relatively long thermal time constant the control loop for cooling of the laser diode package via the thermoelectric coolers has a relatively slow response Controlling the laser diode drive current supplied to the laser diode chip itself performs fine adjustment of laser radiation wavelength Larger drive currents result in increased power dissipation of the laser diode chip This results in increased laser diode gain and chip temperature In contrast to the slow res
128. t Cannot update database because I D already is in use The database requires a unique ID number for each patient Use another ID Graphically data not found Corresponding raw data file has been deleted The old patient database was not found A new empty patient database has been created No patient database exist Restore a backup or continue with an empty one The old experiment database was not found A new empty experiment database has been created No experiment database exists Restore a backup or continue with an empty one The print setup file was not found The file PrintSetup ini is missing See Printer Setup in Innocor Software User Manual COR SUM 0000 001 The pulse oximeter was not found See section 0 The blood pressure unit was not found See section 5 11 The Keyboard code was not found Default keyboard is used Keyboard definition missing in language file Languageld See Language Support in Innocor Software User Manual COR SUM 0000 001 The Keyboard code was invalid Default keyboard is used Invalid keyboard definition in language file Languagela See Language Support in Innocor Software User Manual COR SUM 0000 001 The Gas Cylinder data was not found Further measurement not possible The database containing Gas Cylinder data is missing Contact Innovision The Gas Cylinder number is invalid
129. t Low Conc Set concentration to 20 93 Expose inlet to ambient air 20 93 Oz Press Accept Signal when signal is stable Dig Oxygen Press Save and Exit Oxigraf is now calibrated Expose inlet to ambient air 20 93 Oz Press Accept Signal when signal is stable Dig Oxygen Expose inlet to high O concentration 100 or 50 Press Accept Signal when signal is stable Dig Oxygen Press Save PGA is now calibrated with respect to the O signal Zero signal ZO2 should be in the range 1 to 1 Slope kKO2 should be in the range 0 19 to 0 21 Oxygen Calibration Evt enter the correct ref Gas concentration if not Apply the Oxygen to the gas inlet Wait for the signal to stablize When the signal is stable press Accept Signal 1 00 00 What to do Nominel Reference Gas Conc a bd Accept Signal Cancel Set High Conc Figure 4 3 2 2 Menu for oxygen calibration 1 step E e Zero Signal 702 Changes to the signal will first take S place when the High Conc have been applied Slope k02 20 93 Accept Signal TT tel EST Leica er LT 07 914 Oxygen Cal IESSE Figure 4 3 2 3 Menu for oxygen calibration 2 step January 2007 COR MAN 0000 002 IN UK A 7 0 50635 0 19580 Oxigraf Status Help Exit Service ii 74 SFe CO N20 Innovision 4 3 3 CO SF N O calibration Innocor Service Manual The calibration of the PGA
130. t is below the accepted limit 4 7 1 Internal gas supply leak test The internal leak test covers the parts of the gas supply located inside the Innocor and the acceptance limit is 1 bar hour which corresponds to a leak rate of approx 5 ml hour Turn the Innocor on Connect a gas bottle Enter the service program of Innocor Wait Y hour to stabilise Innocor A gas bottle temperatures Select Misc Select Pressure see figure 4 6 1 Unscrew the gas bottle counter clockwise 1 turns Note the gas bottle pressure Wait at least 1 hour Note the gas bottle pressure again Calculate the leak rate per hour The leak rate is accepted if lower than 1 bar hour In case of too high leak rate inspect January 2007 COR MAN 0000 002 IN UK A 7 86 Innovision Innocor Service Manual e The o ring where the gas bottle is screwed down e The tubing internally in the Innocor e If the leak rate is still too high return the Innocor to Innovision for repair 4 7 2 Total gas supply leak test The total leak test covers the leak rate of the gas supply when both of the pneumatic strings Pneu 1 8 2 are activated If the Innocor can pass the internal leak test the total leak test will determine the leak rate of the RVU The acceptance limit for the total leak rate is 10 bar hour which corresponds to a leak rate of approx 50 ml hour The reason for the relative higher leak rate is a diffusion of gases through the wall of the silicone 6 tube e Turn the
131. ted from the particular laser diode is scanned during device manufacture from single mode operating region to single mode operating region until a suitable spectral line is found Because operation of a laser diode at a low power can cause the laser diode to exhibit multi modal behaviour and because operation of a laser diode at a very high power can cause the wavelengths of the mode hops to shift over laser diode lifetime the laser diode is operated within maximum and minimum power range both during manufacture or during normal operation For the type of laser diode having the characteristic represented in figure 3 3 5 operation at powers less than 1 mW commonly results in multi modal radiation being emitted Wavelength of eepee ee eee pls eR EE E E 7 ER elei 183 8000 slope of single mode operation 0 08 nm C average slope 0 24 nm C 20 C 30 C Laser Diode Temperature Figure 3 3 5 Wavelength of emitted radiation versus laser diode temperature January 2007 COR MAN 0000 002 IN UK A 7 33 Innovision Innocor Service Manual Figure 3 3 6 is a simplified block diagram of the oxygen concentration spectroscopy device in the Oxigraf A laser diode D1 emits a beam of laser radiation through a sample cell containing a sample of gas The concentration of oxygen in the sample gas is to be measured A monitor photo detector a photodiode D2 is used to generate a signal indicative of the magnitude of the laser radiation
132. ter the desired air volume and press OK e g 2500 ml and press OK Note down the original flow speed Press Test Air Vol Elapsed time GOTEO Air Fill EA Air Vol ml 1500 500 ml 5000 mi Close to Reb Bag Pneul S Mol iwl St v i Close to open Air Pneu2 Set Air Vol Air String for Bag fill AIR J f Bolus bag fill Rebreathing Test Air Vol Airway Zerocal PAW S Reb Bag Evacuation EVAC Bag Pump Spare Flow Speed 49 94 mi sec Signals Signal Stat Oxygen Cal E Misc Exit Service Figure 4 2 4 2 Menu for air filling calibration The 3 liter calibration bag will now be emptied and immediately hereafter the air filling will start e When the air filling is finished turn the 3 way valve so that the syringe and the calibration bag are connected make sure that the syringe is completely emptied before turning the valve January 2007 COR MAN 0000 002 IN UK A 7 71 Innovision Innocor Service Manual YA Figure 4 2 4 2 Setup for filling calibration 2nd step e Measure the air volume in the bag by pulling the syringe piston The desired air volume is often larger than the capacity of the syringe Therefore it can be necessary to empty the syringe once or twice during the measurement of the air volume Empty the syringe by first turning the 3 way valve to close the connection to the calibration bag Then pull the tapered silicone plug and empty the syringe by pressing down
133. the pressure output of the secondary flow regulator lt is normally not necessary to adjust the pressure it is preset during factory calibration to approx 0 45 bar But if some problems occur during bolus calibration or one of the ports of the RVU are not able to close properly it is recommended to check or adjust the pressure Inlet Nafion Airway pressure Six tube seen from the outside of the cabinet Figure 4 2 1 1 Six tube connector Gas Boitle Pressure on Bar Pneu 1 Bar 115 0 430 110 0 431 106 0 434 101 0 435 97 0 437 92 0 440 88 0 442 83 0 444 79 0 446 74 0 446 69 0 448 64 0 451 60 0 453 55 0 456 50 0 458 45 0 461 40 0 463 36 0 466 31 0 469 26 0 472 20 0 477 Table 4 2 1 1 Set point for Pneu 1 pressure at different gas bottle pressure January 2007 COR MAN 0000 002 IN UK A 7 65 Innovision Innocor Service Manual LP Regulator Figure 4 2 1 2 LP regulator Adjustment of LP regulator Connect a pressure sensor to the Pneu 1 line on the six tube connector see figure 4 2 1 1 Pull out the knob of the LP regulator see 4 2 1 2 Turn clockwise to increase and counter clockwise to decrease pressure To reduce pressure first reduce to a pressure less than that desired and then increase to the desired pressure Pull in the knob to fix the setting Use the service program in Innocor to ma
134. tion l l l en PULSE PULSE OXIMETER _ OXIMETER PROBE optional NIBP NIBP CUFF optional for control BBB sensor 9600 baud RS232 115200 baud electronics i optional SS analog signal Flowmeter optional 02 SENSOR optional Figure 2 4 1 General block diagram The Innocor consist of the following main parts e High voltage Power supply e An integrated computer e Measuring system e Optional sensors The high voltage part converts the AC input voltage 110 230 V to DC voltages used by the other subsystems 5 V 12 V The integrated computer consists of the following modules e Single board computer Hard disk LCD display incl inverter Touch screen incl controller Quad serial ports with 4xRS232 The computer controls the measurements of all sensors and displays the results on the LCD display for the user The user can operate the software using the touch screen only The measuring system consists of the following modules e PGA multigas analyser e Inlet pump incl attenuator e Gas distribution system incl gas cylinder January 2007 COR MAN 0000 002 IN UK A 7 10 Innovision Innocor Service Manual e Sensor amp valve control electronics e Rebreathing valves The computer controls the PGA via a serial line All digital and analogue lines are connected to the PGA via the I F Board sensor amp valve con
135. tiple relatively weak and narrow oxygen spectral absorption lines exist in the range of 760 nm to 770 nm at Standard Temperature and Pressure Typical absorption of one of the stronger lines over a few inch path length in 100 percent O is less than one percent The width of such a spectral line is typically only about 4 pm Although some of these oxygen absorption spectral lines may occur at the same wavelengths as the mode hops of a given laser diode other of the oxygen absorption spectral lines generally will occur at different wavelengths where no mode hop exists One particular oxygen absorption spectral line is therefore chosen for the individual laser diode chip of each individual oxygen concentration spectroscopy device The particular oxygen absorption spectral line chosen is a preferably strong absorption peak which is well separated from any neighbouring absorption peaks and which is located in a single mode region of the particular laser diode away from the edges of a single mode region of the laser diode The emitted radiation from the particular laser diode can therefore be scanned in wavelength both above and below the wavelength of the particular spectral line chosen without leaving the single mode operating region This allows for future adjustment of the oxygen detector spectroscopy device over product lifetime To determine the particular oxygen absorption spectral line for a particular laser diode the wavelength of the laser radiation emit
136. tors the system pressure the length of time that the system has been pressurised and other possible fault conditions within the system Should the safety microprocessor detect any fault condition e g an overpressure situation if the system has become pressurised above the maximum limit it will de energise the redundant backup switch cutting all power to the pump and valves The valves are normally open devices so in this situation they will both open causing a fast dump of any pressure that may have been in the system at that time The pump is obviously inhibited from further operation as it is without any power Correct operation of the pressure transducer is monitored by a system of sanity limits implemented in both microprocessors and by checking the pressure profile detected by the transducer when the pump is inflating Other conditions and situations monitored that will cause readings to be aborted include calibration data corruption power supply malfunction low input voltage leaky or blocked pneumatics and various other electronic faults Additionally both microprocessors perform a watchdog function over each other 3 6 3 Calibration Calibration data is held within the non volatile memory of the main microprocessor Integrity of this data is assured by a system of CRC error detection redundant data tables and sanity limits Calibration can only be performed using a set of special commands There is also a hardware enable disable ju
137. trol electronics The gas distribution system reduces the pressure of the gas in the gas cylinder and distributes the gas and air to different locations bag filling of air or bolus bag evacuation amp pneumatic control of respiratory valve Optional sensors are e O2 sensor e Pulse oximeter e NIBP e Flowmeter including BBB sensor electronics The O2 sensor gives a measurement of the oxygen concentration and the oxygen consumption The pulse oximeter sensor gives a measurement of the heart rate and oxygen saturation The NIBP module is used to measure the blood pressure diastolic systolic and mean arterial pressure The BBB option includes a flowmeter and a BBB sensor electronics for the measurement of inspired expired flow The BBB sensor electronics is inserted between the sensor amp valve control electronics IF board and the PGA NIBP Air filling and Main I F evacuation Board Computer O sensor Power sa om Touch EN controller Patient panel Back light Inverter Figure 2 4 2 Innocor overview seen from the front January 2007 COR MAN 0000 002 IN UK A 7 11 Innovision Innocor Service Manual Air filling and NIBP Valves Main I F Board evacuation Inlet pump Computer BBB sensor electronics not shown Power supply Data panel Power panel PGA Gas cylinder I F Figure 2 4 3 Innocor overview seen from the back 2 5 PRINCIPLE OF OPERATION
138. ttom plate M3 unbrako A detailed plan on the bottom plate screws can be found on figure 7 2 6 Gently loosen the screws Always exchange the mounting screws together with the power supply RON 2 Output power connector 3 Input power connector Figure 7 6 1 Location of power supply January 2007 COR MAN 0000 002 IN UK A 7 119 Innovision Innocor Service Manual 7 7 INLET PUMP The gas inlet pump drives the sample flow for the PGA and the oxygen sensor optional through the pulsation attenuator How to exchange the inlet pump 1 First unscrew the three M5 nuts on the vibration dampers see above 2 Disconnect the power cord on the PGA see figure 7 3 1 6 3 Then remove the flexible tubing on the gas inlet pump 4 Unscrew the two small screws located on the bottom of the pump plate i Ee A Sa e a a SCH 1 Suction SE r Attenuator i e r i e A __ Ogygen i BRONG E 3 l Sensor l Inlet pump 1 M5 nut Pressure Vibration damper one of three Pulsation attenuator To PGA outlet To analyser exhaust 3 Flexible tubing Inlet pump gt gt KS cord con nected to the PGA Pump A 4 Screws for inlet pump Figure 7 7 1 Gas inlet pump exchange January 2007 COR MAN 0000 002 IN UK A 7 120 Innovision Innocor Service Manual 7 8 AIR FILL BAG EVACUATION PUMP How to exchange the air filling and evacuation pump Disconnect the power o
139. umidity oooooocconinnnnnnaco no 10 90 RH non condensing 30 C Warm up 0A CPEE AT E TEATE 2 minutes Storage temperature ssssssssssrrresesirreetinnestennnatinnsetanaeatanaeten naa 20 to 50 C Storage humidity oooonocccconnocccccononcccnonanccnnnnancccnnnna 0 to 90 not condensed Dust and direct sunlight to be avoided Display RE Colour TFT LCD display EE 12 1 eseou edi an it SVGA 800x600 pixels January 2007 COR MAN 0000 002 IN UK A 7 Innovision Innocor Service Manual ele RE High resolution resistive type Integrated computer PIOCESSOf iti ira 586 class 300 MHz Pentium MMX ege WEE 10 or 20 GB Operating system Windows XP embedded Electrical interfaces Networking 0 eine cde eee ee 10 100 Mbps Ethernet PG interfaces enge Dee 2 x Universal Serial Bus USB 1 1 CAUTION The electrical interfaces on the data interface panel USB and Network shall not be used under normal clinical conditions within the patient zone but only during service and occasionally for data exchange Peripheral equipment connected to these interfaces must be certified according to the respective European standards e g EN 60950 for data processing equipment and EN 60601 1 for medical equipment Furthermore all configurations shall comply with the system standard EN 60601 1 1 Everybody who connects additional equipment to the signal input part configures a medical system and is therefore responsible that the system compl
140. ur are within the audible range approx 150 350 Hz and a single highly sensitive microphone picks up the signals Finally the different pressure signals are distinguished electronically figure 3 2 5 January 2007 COR MAN 0000 002 IN UK A 7 26 Innovision Innocor Service Manual The following frequencies are used Dez 214 8 Hz CQ 273 4 Hz NO 332 Hz 7 Opto Interrupter Differential Ditt Press ja 1 Pressure EEN _ Chopper Disk Valve Reg L P seme mow LJ Les og minor Inlet i Regulator Inlet Motor Z A a a IR Source Filter CCTEMP je Sensor Detector d AA amicroPH je Mie micron PAS Cell Optical Preamp phone E Filters Absolute U IR Windows Pump Reg Abs Press Pressure Transducer a G i Pump l Acoustical outlet d Pump Pulsation LP filter ue Attenuator Outlet a Y Figure 3 2 2 Schematic view of the acoustic measurement principles January 2007 COR MAN 0000 002 IN UK A 7 27 Innocor Service Manual
141. utput Oxigraf 51 Innovision Innocor Service Manual 3 8 1 Power supply 5 POWER Power for Inverter sit E IECH 401 c2 5V Power Supply I Ou 100n GND Spal 20 GND Power dtd 2 Power for SIZ 1 Fan yA V ER ECH ca GND MEA Du CL AN 20 100n 12Y Power Supply E A J421 GND 3 Power tor 1 Touch controler 12VPOWER ak NM ER ER GND 3A 405 Ge 12 Power Supply Du 100m AN J402 4 Power for 2 PGA Du bomelF Board vg ex 0001 PCB No 67951 organi len Interacoustics a s NP Not Present Figure 3 8 1 1 Power supply The I F Board is powered by the systems main power supply The I F Board distributes the different supplies to the subsystems The power supply is a 60 Watt VLT60 3000 which offers the following three supplies Voltage V Current A 12 3 12 0 5 5 8 Table 3 8 1 2 Power supply output The 3 supplies are used as indicated in the table below Subsystem 5V 12V 12 V Touch controller Xx Inverter Fan PGA SBC Oxigraf NIBP Pulse Oximeter x X lt gt lt LK gt gt X lt gt X lt gt X lt lt gt lt X lt X lt X lt gt X lt X lt Table 3 8 1 3 The subsystems use of power January 2007 COR MAN 0000 002 IN UK A 7 52 Innovision 3 8 2 Valve control Innocor Service Manual PGA 3 3V_PGA AKEN
142. very difficult to generate the high flow rates with a 1 litre syringe Volt to flow Destribution Prepare Add Stroke i Statistics i Filter been Cancel Table Undefined E Strokes loaded 0 Innocor Connected Strokes performed 0 Figure 4 4 2 1 Menu for flowmeter linearization January 2007 COR MAN 0000 002 IN UK A 7 80 Innovision Innocor Service Manual Fill syringe Volume to flow Stroke Eror Yolume Maxflow Mean flow 10 0 vai 0 73 8 04 vi 0 06 3 00 6 04 YE3 010 3 00 ial vi 0 93 2 97 VES 0 32 2 99 a YEG 095 297 E Vi 0 25 3 01 Yas 0 47 2 99 A DH A Accept Mean error 0 26 Used Skip Veedel Selected 8 8 Cancel Offset voltage mV 75 97 i Figure 4 4 2 2 Menu for entering 2x5 strokes Gain Gain 2 05 2 05 2 00 2 00 1 95 1 95 1 90 1 90 1 85 1 85 1 80 1 80 1 75 Wm 5 0 5 10 10 5 0 5 10 Figure 4 4 2 3 Gain curve before and after filtering 6xFilter Use the filter function until the noise on the gain curve disappears January 2007 COR MAN 0000 002 IN UK A 7 81 Innovision Innocor Service Manual Data ready Volume to flow Stroke Eror Yolume Maxflow Mean flow vil VE 2 0 35 2 99 2 57 1 43 VE 3 0 01 3 00 3 74 1 83 vE 4 0 39 2 99 4 72 1 78 VES 0 90 2 97 6 01 2 19 z vE c 0 93 2 97 6 68 2 01 3 Vi 0 94 2 97 6 85 2 44 El Vis 0 20 2 99 8 51 2 22 vE 9 0 20 3 01 7 97 2 48 v Eip 0 64 3 0
143. y and then corrects the CO delay with the same amount If Co2Calc 1 the automatic adjustment calculates both the O amp CO delay which is not recommended because the O delay calculation is more accurate during exercise breathing If the flow gas delay calibration is not performed with the standard RVU the volume of the dead space between the inlet and ambient air must be changed in the BBBctrl ini file Deadspace Valve 0 045 Similar the flowmeter dead space the volume from the mouth to the inlet must be changed in the BBBctrl ini file Deadspace Flowmeter 0 12 January 2007 COR MAN 0000 002 IN UK A 7 84 Innovision Innocor Service Manual 4 5 3 Calibration procedure Enter Setup and select Calibration Calculate gas delay O2Adjust Adjust flowmeter Calculate gas delay Wait 1 minute for warm up When warmed up the operator not the subject starts breathing in and out of the RVU When ready the Calibration button is pressed The operator must then make 11 slow expirations followed by 11 very fast inspirations until the OK button is highlighted The inspirations have to be fast in order to get a precise determination of the flow gas delay If one or two breaths fail the software will automatically filter these results The delays should not vary more than 20 40 ms from day to day if the same gas sample inlet is used Note e A gas cylinder must be connected in order to close the RB valve during the dela
144. y calibration e The BBB port on the RVU must not be connected to other devices during the delay calibration System ready Press Calibrate to start lun UU Www RN 400 1481 1493 Figure 4 5 3 1 Menu for flow gas delay calibration January 2007 COR MAN 0000 002 IN UK A 7 85 Innovision Innocor Service Manual 4 6 GAS PRESSURE SENSOR OFFSET CALIBRATION The gas pressure sensor measures the gas bottle pressure in bar The gain calibration is factory calibrated to 43 75 in C innocor Setup GasSystem ini GasPressure Gain 43 75 The offset can be calibrated by the procedure Turn the Innocor on Do not connect a gas bottle Enter the service program of Innocor Select Misc Select Pressure Press Offset to calibrate the offset of the pressure sensor Elapsed time GE SINE ASA Press Sensor Valve Beep Unscrew and remove the Bottle Press Gain Signal Offset Gass Bottle slowly from 0 01 43 8 0 50 Y 22 0 Innocor Afterwards when signal is Press Unit bar stable select Gain Offset or just Offset r Gain Offset Offset qi Signals Signal Stat PGA Zero PGA Mix Oxygen Cal Blood Press Misc Exit Service JALAN Figure 4 6 1 Menu for gas pressure sensor offset calibration 4 7 LEAK TEST ON GAS SUPPLY SYSTEM The purpose of a leak test on the gas supply is to determine the leak rate in the gas supply system and to test that i

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