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DPM 5 Service Manual

1. ERR ES 22 ERE 23 2 4 5 TEMP sad en o nein ii 23 2 4 6 jii X 23 2 4 7 eom 24 2 4 8 iut ohne dvi nidis 24 2 4 9 Arum mn DIA US TUE 24 CHAPTER 3 PRODUCT SPECIFICATIONS eese ee 27 9 12 SAFETY CLASSIFICATIONS uie ERR RUE 27 3 2 ENVIRONMENTAL SPECIFICATIONS esses tette nennen nen 27 3 3 POWER SOURCE SPECIFICATIONS sse tente nennen 28 3 4 HARDWARE SPECIEICATIONS 2 5 e SE RR ERR SEEN S E 29 1 1 Service Manual V 5 0 3 5 WIRELESS NETWORK 5 che dekh end iret Ges bers bebe be eee oe eei 30 36 DATA STORAGE 3 Do Etna ER ERES ERES 30 3 7 SIGNAL OUTPUT SPECIFICATIONS c cscccsesesescseseseseseseseseseseseeaneececaeseseseseaeeeseseeetensneeesaeseseaeaes 30 3 8 ECG SPECIEIGATIONS i Ri ete edi m be eta 31 3 927 RESP SPECIFICATIONS ete te E GERI e Rte re te eate 36 3 10 SPO SPECIFICATIONS 0 b RR DIS 36 3 11 ion debe ett aede tein e din 38 3 12 SPECIFICATIONS T e t etu M dr idet 39 3 13 IBP SPECIFICATION Sunna e HER TEE wee IU NDA RA ed 39 3 14 5 225 dedi e P ed Ree 40 3 15 GOs SBECIEICATIONS iret
2. Valve Drive Valve t Circuit Windpipe Air Motor Drive s Pump Circuit CPU System RAM ROM Main NIBP Signal AID Watchdog Pog Process Circuit Logic Control wi Cuff 8 Over Pressure gt Detect Figure 2 8 Working principle of the NIBP module 2 2 5 3 Principle The NIBP is measured based on the pulse vibration principle Inflate the cuff which is on the forearm till the cuff pressure blocks the arterial blood and then deflate the cuff according to a specified algorithm While the cuff pressure is decreasing the arterial blood has pulses which are sensed by the pressure transducer in the cuff Consequently the pressure transducer connected with the windpipe of the cuff generates a pulsation signal which is then processed by the NIBP module to get the NIBP value Valve Drive Circuit This circuit controls the status ON OFF of valves It together with the Motor Drive Circuit 14 Chapter 2 Principles implements the inflation and deflation of the cuff Motor Drive Circuit This circuit controls the action of the air pump It together with the Valve Drive Circuit implements the inflation and deflation of the cuff Besides it provides the status signal of the motor for the A D conversion part NIBP Signal Process Network The NIBP signal is the differential input signal The difference amplifying circuit amplifies the dual end difference signal and converts it t
3. Calculated parameter CO hemodynamics 0 1 to 201 min Measurement range TB 23 to 43 C TI 0 to 27 C CO 0 1 l min Resolution TB TI 0 1 C 5 or 0 1 1 min Precision TB TI 0 1 C Alarm range TB 23 to 43 C 3 15 CO Specifications Measurement technique Infrared absorption technique Displayed parameter EtCO2 FiCO2 Respiration Rate 2 function Meet the requirements of EN ISO21647 ISO 21647 and 1509918 40 Chapter 3 Product Specifications Mindray DS Specifications CO2 measurement range 0 to 99mmHg 0 to 40 mmHg 2 mmHg Precision 41 to 76 mmHg 5 77 to 99 mmHg 10 Resolution 1 mmHg Drift meet the requirement of accurancy in 6 hours Sample flow rate 70 100 ml min Precision of deflation rate 15 or 15 ml min whichever is great Start up time of CO2 module lt Imin the module enters the warming up status after the startup One minute later it enters the ready to measure status AwRR measurement range 0 to 120 BrPM Precision 0 to 70 BrPM 2 BrPM gt 70 BrPM 5 BrPM Response time When measured with a neonatal watertrap and a 2 5 m long neonatal sampling line lt 3 5 s 100 ml min 4 s 70 ml min When measured with an adult watertrap and a 2 5 m long adult sampling line 5 5 s 100 ml min lt 7 s 70 ml min Delay time When measured
4. Replace the recorder module 4 2 6 Abnormal Paper Drive 1 Check whether there are blocks on the paper roller of the recorder 2 Check whether there are blocks in the gear cluster of thermal assembly of the recorder 3 Check whether the voltage input of the recorder is larger than 17 6V 52 Chapter 5 Test and Material List Chapter 5 Test and Material List 5 1 Test Procedure 5 1 1 Connection and Checking Connect the simulators power supply and test fixture properly to the DPM5 patient monitor and power it on Then the patient monitor displays the start up screen on the TFT Screen and enters the system screen 5 1 2 Functions of Buttons Press every button on the button panel to check their functions as specified DPM5 Operator s Manual Rotate the control knob to check its functions 5 1 3 ECG RESP The TFT screen displays the standard ECG waveform and the error between the heart rate and the set value of the simulator is no more than 1 namely 60 1 the RESP waveform is smooth and the respiration rate is 20 1 1 Select all leads in order including Cal select all the four gains and AUTO ensure the waveforms are displayed properly and check whether the 50Hz 60Hz interference can be filtered Check in all the above mentioned cases the consistency between the heartbeats the flashes of the red heart like indicator and the R wave The gain has no impact on the message ECG signal over
5. 5 Patient Monitor Service Manual mindray Service Manual V 5 0 Copyright Statement Mindray DS USA Inc hereinafter called Mindray DS owns all rights to this unpublished work and intends to maintain this work as confidential Mindray DS may also seek to maintain this work as an unpublished copyright This publication is to be used solely for the purposes of reference operation maintenance or repair of Mindray DS equipment No part of this can be disseminated for other purposes In the event of inadvertent or deliberate publication Mindray DS intends to enforce its rights to this work under copyright laws as a published work Those having access to this work may not copy use or disclose the information in this work unless expressly authorized by Mindray DS to do so All information contained in this publication is believed to be correct Mindray DS shall not be liable for errors contained herein nor for incidental or consequential damages in connection with the furnishing or use of this material This publication may refer to information and protected by copyrights or patents and does not convey any license under the copyright and patent rights of Mindray DS nor the rights of others Mindray DS does not assume any liability arising out of any infringements of patents or other rights of third parties mindray Bio Medical Electronics Co Ltd All third party trademarks that appear in this manual are used is a
6. 2 3 2 System Task NO Task Function Period NITET TE In case of a 1 System initialization Initializing the system startup 2 Data processing Analyzing and saving the data 1 second Display of timer 3 Implementing the timed refreshing 1 second information In case of a Switchover of modules Switching over between waveforms and 5 screen change and screens parameters on the screen event Processing of 6 commands screens Processing the user inputs by buttons and displaying them on the screen In case of a button event System monitoring voltage monitoring and 7 System monitoring 1 second battery management 8 Network connection Implementing the network connection 1 second 9 Network data sending Sending the network data 1 second 10 Network data receiving Receiving the network data viewbed 1 second Analyzing ECG signal calculating ECG values 11 ECG analysis HR ARR and ST and saving the analysis 1 second results 12 Record output Outputting records In case of a record event 13 NIBP processing Implementing NIBP related processing 1 second 14 WATCHDOG task Managing the system watchdog 1 second 19 Chapter 2 Principles 2 3 3 System Function The system tasks can be classified as follows Network sending event Screen switchover event odule amp screen switchover tas
7. 1 CHAPTER 2 PRINCIPLES nion 5 2X GENERAL iridis nre edet de e ip eed bebe mde eie 5 2 1 1 Parameter Measurements a eoa ER SERRA 5 2 1 2 Main Control Pat ie ose ac eue aea do cha e ae dt eai ea 6 2 1 3 Interface deep e Pee et davis snbinbintadaghcuatostacetasaosivass 6 2 1 4 Power Supply x eat Se aatem t add Ua 6 2 1 5 Other Auxiliary Functions esee esent tnter nennen 6 2 2 HARDWARE DESCRIPTION aree hi D RE d e M eR e 7 2 2 1 Board suns t va t e dm etit ERES 8 2 2 2 ECG RESP TEMP Mod le i sacs RAE 9 2 2 3 CO IBP Module te t eite d ear ee RE te 12 2 2 4 SpO Module aO e RET Re eee ERR Ue 13 2 2 5 NIBP Mod le 4 556 ni tenetis evite ii E RF eR eS 14 2 2 6 Recorder Module a 15 2 2 7 16 2 2 8 Power ed eO p dee 17 2 3 SOFTWARE DESCRIPTION 0 eere e ae e ee Hte SE 18 2 3 1 GATA M 18 2 3 2 System Task e aee opem PEPERIT RR UH 19 23 3 ystem FUnctlon ood EORR de e dites 20 2 4 SYSTEM PARAMBIER RR ete WR e T ERREUR rude us Ot etudes 21 2 4 1 Gelet lc eter RA tI ih 21 2 4 2 a usted eo qa Seles Sce 21 2 4 3
8. Step Motor Drive Circuit There is a step motor on the heat sensitive printer The step motor drives the paper This circuit is used to drive the step motor Printer Status Detect Circuit This circuit detects the status of the heat sensitive printer and sends the status information to the CPU system The status information includes the position of the paper roller status of the heat sensitive recorder paper and the temperature of the heat sensitive head CPU System Processing the data to be printed W Controlling the heat sensitive printer and step motor W Collecting data about the status of the heat sensitive printer and controlling the printer W implementing the communication with the main board 2 2 7 Button Panel 2 2 7 1 General This module provides a man machine interactive interface 2 2 7 2 Principle diagram LED lt KEY gt Encoder CPU i uu E Main Audio Process Speaker Circuit Watchdog Figure 2 10 Working principle of the button panel 2 2 7 3 Principle This module detects the input signals of the button panel and control knob converts the detected input signals to codes and then sends to the main board The main board sends commands to the button panel which according to the commands controls the status of the LED and the audio process circuit to give auditory visual alarms CPU Detecting the input signal of the button panel and control knob
9. 11 Introduction The DPM5 Patient Monitor a portable and accessible patient monitor is supplied by rechargeable batteries or external AC power which applies to adults pediatric and neonates You can select different configurations as required Besides the DPM5 can be connected with the central monitoring system whereby a monitoring network will be formed Parameters that the DPM5 can monitor include ECG RESP SpO NIBP 2 channel TEMP 2 channel IBP CO and It integrating the functions of parameter measurement waveform monitoring freezing and recording is a compact and lightweight patient monitor Its color TFT LCD is able to show patient parameters and 8 waveforms clearly The compact control panel and knob control and the easy to use menu system enable you to freeze record or perform other operations conveniently The DPM5 Patient Monitor measures patient s ECG NIBP SpO TEMP RESP IBP CO and physiological signals through the ECG electrode sensor cuff temperature sensor and pressure transducer During the measurement the patient monitor does not get energy or any substance from the human body and does not release any substance to the human body However it releases sine wave signals to the patient when measuring the respiration rate The patient monitor converts the measured physiological signals to the digital signals waveforms and values and then displays them on the screen You can control the pati
10. Pressure 3 Way Transducer Connector Interface Cable NI lydrargyrum Pressure Meter PM 9000 Figure 5 5 IBP Calibration 59 Chapter 5 Test and Material List You will need the following pieces of equipment e Standard sphygmomanometer 3 way stopcock Tubing approximately 25 cm long The Calibration Procedure 1 Close the stopcock that was open to atmospheric pressure for the zero calibration 2 Attach the tubing to the sphygmomanometer 3 Ensure that connection that would lead to patient is off 4 Connect the 3 way connector to the 3 way stopcock that is not connected to the patient catheter e Open the port of the 3 way stopcock to the sohygmomanometer 6 Selectthe channel to be calibrated in the menu and select the pressure value to which the IBP is to be adjusted 7 Inflate to make the mercury bar rise to the setup pressure value 8 Adjust repeatedly until the value in the menu is equal to the pressure value shown by the mercury calibration 9 Press the Start button the device will begin calibrating 10 Wait for the calibrated result You should take corresponding measures based on the prompt information 11 After calibration disassemble the blood pressure tubing and the attached 3 way valve Calibration completion message SUCCESSFUL CALIBRATE 5 4 CO2 CHECK Check procedure for sidestream module only Via the DPM5 s system and maintain menus you are prompted for
11. 26 Chapter 3 Product Specifications Chapter 3 Product Specifications 3 1 Safety Classifications Type of protection against electric shock Class I with internal electric power supply Where the integrity of the external protective earth ground in the installation or its conductors is in doubt the equipment shall be operated from its internal electric power supply batteries Degree of protection against electric shock Sidestream Microstream CO2 AG BF defibrillation proof ECG RESP TEMP SpO2 NIBP IBP CO CF defibrillation proof Degree of protection against hazards of ignition of flammable anesthetic mixtures Not protected ordinary Degree of protection against harmful ingress of Not protected ordinary water Mode of operation Continuous Equipment type Portable 3 2 Environmental Specifications 0 to 40 C 5 to 35 C With Sidestream CO2 module Operating temperature 5 to 35 C With Microstream CO2 module 10 0 35 C With AION AG module Operating humidity 15 to 95 noncondensing 500 to 4600 m 1640 to 15092 feet Operating altitude 305 to 3014 m 1000 to 9889 feet with CO2 AG Masimo or Nellcor SpO2 module Storage temperature 20 to 60 C Storage humidity 10 to 95 noncondensing Storage and transportation altitude 500 to 13100 m 1640 to 42979 feet 305 to 6096 m 1000 to 20000 feet with CO2 AG Masimo
12. Type Color TFT LCD Size 12 1 inches diagonal Resolution 800x600 pixels Recorder Type Thermal dot array Horizontal resolution 160 dots cm at 25 mm s recording rate Vertical resolution 80 dots cm Width of the recorder paper 50 mm Length of the recorder paper 20m Recording rate 25 mm s 50 mm s Recorded waveforms 3 LED indicator Alarm indicator 1 yellow and red Running status indicator 1 green AC power indicator 1 green Battery indicator 1 green Audio indicator Giving audio alarms 45 to 85 dB keypad tones and heartbeat pulse tone Speaker Supporting PITCH TONE and multi level volume Audio alarms comply with EN 60601 1 8 and IEC60601 1 8 Connectors Power supply AC power connector Network 1 standard RJ45 network connector 100 BASE TX VGA 1 standard color VGA monitor connector 15 PIN D sub Auxiliary output 1 BNC connector Equipotentiality 1 equipotential grounding connector 29 Chapter 3 Product Specifications 3 5 Wireless network Standards IEEE 802 11b Wi Fi compatible Frequency range 2 412 to 2 462GHz China America Canada Europe Spain France Japan Operating channel 1 to 11 10 11 2 For other country please refer to your local law Safe distance 10m a circle centering AP with the diameter of 10m Maximum data rate 11Mbps 3 6 Data Storage Long trend 96 hour
13. 1 Obtain return authorization Contact the Customerr Service Department and obtain a Customer Service Authorization Mindray DS number The Mindray DS number must appear on the outside of the shipping container Return shipments will not be accepted if the Mindray DS number is not clearly visible Please provide the model number serial number and a brief description of the reason for return 2 Freight policy The customer is responsible for freight charges when equipment is shipped to Mindray DS for service this includes customs charges 3 Return address Please send the part s or equipment to the address offered by the Customer Service department Company Contact Manufacturer Shenzhen Mindray Bio Medical Electronics Co Ltd Address Mindray Building Keji 12th Road South Hi tech industrial park Nanshan Shenzhen 518057 P R China Website www mindray com E mail Address service mindray com cn Tel 86 755 81888998 Fax 86 755 26582680 Distributor Mindray DS USA Inc Address 800 MacArthur Boulevard Mahwah New Jersey 07430 USA Tel 1 800 288 2121 1 201 995 8000 Website www mindray com Service Manual V 5 0 Safety Precautions 1 Meaning of Signal Words In this manual the signal words WARNING and CAUTION are used regarding safety and other important instructions The signal words and their meanings are defined as follows Please understand their meanings clearly before reading this manual AAWA
14. 35928 Mounting plate of microstream 1 module 4 1 4 Front Cover Assembly Figure 4 4 Front cover assembly NO Material Code Part amp Specification 1 9200 20 10513 Dust washer 1 2 9200 20 10514 Dust washer 2 3 04 003105 Cross head self tapping screw 3 8 4 9200 30 10701 Alarm indicator panel red yellow indicator 5 9200 30 10470 Encoder plate 6 9201 20 35966 Front screen 7 9200 20 35968 Alarm indicator cover 8 9200 20 10548 12 1 TFT panel 9 9201 20 35972 Rotary knob 10 9200 20 10512 Foot plate 2 11 9200 20 10472 Button 12 9200 20 10473 Button backer 13 9201 20 36031 Connector 48 Chapter 4 Disassembling Assembling amp Troubleshooting 14 04 051004 Cross head self tapping screw 2 6 6 15 9201 30 35912 9201 button panel 4 1 5 Back Cover Assembly 14 2 Figure 4 5 Back cover assembly microstream 9201 30 35992 NO Material Code Part amp Specification Remark 1 M04 003105 Cross head self tapping screw 3 8 2 9200 20 10620 Speaker press plate 3 9200 21 10633 Speaker 4 9200 20 10622 Hook mounting plate 5 9201 21 35974 Back cover microstream module 6 9201 20 35970 Handle 7 9201 20 35969 Gland 8 M04 000802 Flat washer GB9713 9 04 000305 Cross head self tapping screw 3 12 10 920
15. Chapter 4 Disassembling Assembling amp Troubleshooting Chapter 4 Disassembling Assembling amp Troubleshooting 4 1 DPM5 Disassembling Assembling 4 1 1 Exploded View of DPM5 Figure 4 1 Exploded view of DPM5 NO Material code Part amp Specification Quantity 1 9201 30 35947 Front cover assembly 1 2 9210 30 30181 Back plate assembly 1 3 04 000305 Cross head self tapping screw 3 12 5 4 02 000802 Flat washer GB97 13 4 5 9201 30 35944 Support assembly Lithium battery 1 6 9201 20 35971 Battery door 1 7 04 003105 Cross head self tapping screw 3 8 3 8 9201 30 35948 6pin parameter socket 1 9 9201 30 35992 Back cover assembly microstream CO2 1 10 115 031469 00 TR6F recorder 1 11 04 004012 Gasketed cross head screw M3 6 2 12 04 004014 Gasketed cross head screw M4 10 4 13 04 004017 Gasketed cross head screw M3 12 2 14 04 051140 Screw assembly M3 8 2 45 Chapter 4 Disassembling Assembling amp Troubleshooting 4 1 2 5 Display TFT Display Assembly Figure 4 2 DPM5 display TFT display assembly NO Standard Name amp Specification Quantity 1 04 004015 Cross head screw M3x8 4 2 0010 10 12271 LG display LB121S02 1 3 9210 20 30180 12 1 back plate LG 1 4 9210 30 30169 LVDS TTL adapter board 1 5 04 002505 Cross head screw M3 6 2 6 9000E 10 04913 INVERTOR
16. Generate Circuit Figure 2 5 Working principle of the ECG RESP TEMP module 2 2 2 3 Principle This module collects the ECG RESP and TEMP signals through the transducer processes the signals and sends the data to the main board through the serial port ECG Signal Input Circuit The input protection and filtering circuits receive the ECG signal from the transducer and filter the high frequency interference signal to protect the circuit against the damage by defibrillator high voltage and ESD The right leg drive circuit gets the 50 60Hz power common mode signal from the lead cable and sends the negative feedback signal to the human body to reject the common mode interference signal on the lead cable which helps the detection of the ECG signal The lead off detecting circuit checks whether the ECG lead is off and sends the information to CPU ECG Signal Process Circuit The difference amplifying circuit conducts the primary amplification of the ECG signal and rejects the common mode interference signal The low pas filtering circuit filters the high frequency interference signal beyond the frequency band of the ECG signal The PACE signal refers to the ECG pace signal It has significant interference to the ECG signal detection The PACE rejection circuit can rejects the PACE signal which helps the ECG signal detection The main amplifying filtering circuit conducts the secondary amplification of the ECG signal filters the
17. TDK 2 7 04 002405 Cross head screw M2 6 4 8 90 000002 01 Insulating washer 2 5 4 46 Chapter 4 Disassembling Assembling amp Troubleshooting 4 1 3 DPM5 Support Assembly Lithium Battery 9201 30 35944 Figure 4 3 DPM5 support assembly NO Material Code Part amp Specification Quantity 1 04 004012 Gasketed cross head screw M3 6 24 2 9200 20 10689 Recorder regulating panel 1 3 04 005005 Cross head sunk screw M3 6 14 4 9201 20 35965 Support 1 5 04 002505 Cross head screw M3 6 10 6 9210 30 30150 9210 main control board 1 7 9201 30 35922 Battery compartment assembly Lithium 1 battery 8 M05 010001 06 Lithium battery 2 9 9200 20 10516 Insulating plate of ECG board 1 10 051 000007 00 812B ECG board 1 11 04 060009 Stud 3 14 1 12 9200 20 10677 Insulating plate of mounting plate 3 1 13 9200 20 10676 SPO IBP mounting plate 1 14 9200 20 10678 Insulating plate of mounting plate 4 1 15 30 26050 IBP CO module 1 16 630D 30 09121 630D blood pressure pump 1 17 0010 10 12275 MASIMO SpO module 1 18 9201 20 36012 Power PCB insulating plate 1 19 9201 30 35901 Lithium battery power PCB 1 47 Chapter 4 Disassembling Assembling amp Troubleshooting 20 9210 30 30163 Socket assembly 1 21 9201 30 35908 Microstream CO adapter board 1 22 9201 30 35955 Microstream module 1 23 9201 20
18. a password for entering the factory key After entering the password 332888 you get access to the pump rate settings and to check the accuracy of the CO2 measurement Using the below test set up to verify the accuracy of the CO2 module Air Regulator 10 02 Flow C02 Neter trap canister Bench Figure 5 6 Sidestream test set up 60 Chapter 5 Test and Material List A Note A The sidestream module can not be calibrated Only the overall performance and accuracy is checked If the Co2 module fails the tests it should be replaced TEMP SENSOR YSI GAS CALIBRATE gt gt UGA SIZE 12 1 TFT 02 CALIBRATE gt gt PUMP RATE 100 1 ALM TRANSFER OFF MODULE SETUP gt gt WAVE MODE COLOR MEMORY gt gt START CHECK SWITCH OFF C02 CHECK gt gt BAROMETRIC 752 C02 DEVICE INFORMATION gt gt YSI imported TEMP sensor 1 domestic TEMP Ad just pumping rate of 02 sensor pump EXIT EXIT Figure 5 7 Factory Maintain Menu Figure 5 8 CO2 check menu 5 5 AG CALIBRATE Calibrate the AG module every year or when the measured value has a great deviation Tools required Gas bottle with a certain standard gas or mixture gas Gas concentration should meet the following requirements AA gt 1 5 CO gt 1 5 N20 gt 40 gt gt 40 of which AA represents an anesthetic agent T shape connector Tubing Reservoir bag Follow this procedure to perform a calibra
19. eos i RR RO bte Ne e 40 3 16 AG SPEGCIRIGATIONS 1 5d Ute ire i ade tati EE 43 CHAPTER 4 DISASSEMBLING ASSEMBLING amp TROUBLESHOOTING 45 4 1 DPM5 DISASSEMBLING ASSEMBLING ccsecccssesesesesesesesesesesesescsesescnececaeseeesescseneeeseseeesaneeeeas 45 4 1 2 DPM5 Display TFT Display Assembly 46 4 1 3 DPM5 Support Assembly Lithium Battery 9201 30 35944 47 4 1 4 Front Cover Assembly mces onen 48 4 1 5 Back Cover Assembly nionean anenee iaire nte tenente 49 4 1 6 Microstream CO 50 4 2 TROUBLESHOOTING ient eei ec te en e ee E 51 4 2 1 Black Screen Startup Failure sse 51 4 2 2 White Screen amp Other Abnormal Screen essen 52 42 9 EncoderFaults e Eh rs 52 424 No Audio ee e TCU RD EHE getto 52 425 Printing Fall te teer d debi ile er ter 52 4 2 6 Abnormal Paper 52 CHAPTER 5 TEST AND MATERIAL 115 222222 2 53 5 1 TEST PROCEDURE sly lavas REA euet ese 53 5 1 1 Connection and Checking esee teens 53 5 122 FUNCUONS OF BUITORS D RC aee imi ORIS 53 RR RR xs 53 5 1 4 Temperat te cie e tei eio ni eei t
20. functions of audio visual alarm trend graphic storage and output NIBP measurement alarm event identification large font screen defibrillator synchronization oxyCRG recall drug calculation etc Chapter 1 About the Product FOR YOUR NOTES Chapter 2 Principles Chapter 2 Principles 2 1 General The intended use of the DPM5 patient monitor is to monitor a fixed set of parameters including ECG RESP SpO NIBP TEMP IBP CO and CO IBP CO and CO are optional It consists of the following functional parts Parameter measurement Main control part Man machine interface Power supply Other auxiliary functions These functional units are respectively detailed below Interface Man Machine Power Supply peog ulen Parameter measurement Other Auxiliary Functions Figure 2 1 Structure of the DPM5 2 1 1 Parameter Measurement The parameter measurement and monitoring are the core functions of the patient monitor The parameter measurement part of the DPM5 patient monitor consists of the measurement probe Chapter 2 Principles parameter input socket assembly NIBP assembly and the main control board This part converts the physiological signals to electric signals processes the those signals and conducts the calculation by the preset program or command delivered from the main control board and then sends the values waveforms and alarm information
21. in the following sections 2 2 1 Main Board 2 2 1 1 General The main board is the heart of the patient monitor It implements a series of tasks including the system control system scheduling system management data processing file management display processing printing management data storage system diagnosis and alarm 2 2 1 2 Principle diagram UART Filter amp interface Amplifier CPU System RTC RAM ROM FPGA Display Ethernet Ethernet interface Controller VRAM Watchdog Figure 2 4 Working principle of the main board Chapter 2 Principles 2 2 1 3 Principle The main board is connected with external ports including the power input port multi way serial port TFT display interface analog VGA interface network port and analog output port Besides on the main board is also a BDM interface reserved for the software debugging and software downloading CPU System CPU is the core part of the main board It connected with other peripheral modules through the bus and I O cable implements data communication data processing logical control and other functions RTC RTC provides the calendar information such as second minute hour day month and year CPU can read and modify the calendar information from RTC Ethernet Controller Ethernet Controller supports the IEEE802 3 IEEE802 3u LAN standard and supports two data transmission rate 10Mbps and 100Mbps C
22. or Nellcor SpO2 module 27 Chapter 3 Product Specifications 3 3 Power Source Specifications AC Power Supply Specifications Input voltage 100 to 240 V Current 1 4A to 0 6A Frequency 50 60 Hz Fuse T3 A 250 V Internal battery Number of batteries 2 Type Sealed lead acid battery or lithium ion battery Time to shutdown gt 5 min after the first low power alarm Sealed lead acid battery Nominal voltage 12 VDC Capacity 2 3 Ah 48 minutes or 120 minutes typical when powered by one or two Operating time new fully charged batteries respectively 25 C ECG SpO2 NIBP measurement per 15 minutes Charge time A maximum of 6 h for each battery and a maximum of 12h for both in the running status or standby mode Lithium battery Rated voltage 11 1 VDC Capacity 4 4 Ah Operating time 120 minutes or 300 minutes typical when powered by one or two new fully charged batteries respectively 25 C ECG SpO2 NIBP measurement per 15 minutes Charge time A maximum of 6 5h in the running status or standby mode 28 Chapter 3 Product Specifications 3 4 Hardware Specifications Physical Size 318 x 270 x 137mm widthxheightxdepth Different due to different configurations Weight Standard configuration 4 7kg Maximum weight lt 7 5kg Display
23. pressure and PR Mode of operation Manual auto and continuous Measurement interval in 1 2 3 4 5 10 15 30 60 90 120 180 240 480 minutes auto mode Measurement time in 5 minutes continuous mode mmHg Adult Pediatric Neonate Measurement range in Systolic pressure 40 to 270 40 to 200 40 to 135 normal mode Diastolic pressure 10 to 210 10 to 150 10 to 100 Mean pressure 20 to 230 20 to 165 20 to 110 um Maximum average error 5mmHg Measurement precision Maximum standard deviation 8mmHg Resolution 1mmHg Static pressure 0 to 300mmHg measurement range Static accuracy 3 mmHg Over pressure protection Adult 29743 mmHg 38 Chapter 3 Product Specifications by software Pediatric 240 3 mmHg Neonate 14743 mmHg f Adult 330 mmHg Over pressure protection 330 mmHg by hardware Neonate 165 mmHg Adult 178 5 mmHg Default start pressure Pediatric 133410 mmHg Neonate 67 5 mmHg PR from NIBP Measurement range 40 to 240 bpm Precision 3 bpm or 3 whichever is greater Resolution 1 bpm 3 12 TEMP Specifications Number of channels 2 Displayed parameters T1 T2 and TD Measurement range 0 to 50 C 32 to 122 F Resolution 0 1 C 0 1 C excluding the sensor Precision 0 2 C including the YSI 400 series sensor Update period Is Minimum tim
24. signal and then sends the ECG signal to the A D conversion part Pace Detect This part detects the PACE signal from the ECG signal and sends it to CPU Temperature Detect Circuit This circuit receives the signal from the temperature transducer amplifies and filters it and then sends it to the A D conversion part 10 Chapter 2 Principles Carrier Generate Circuit The RESP measurement is based on the impedance method While a man is breathing the action of the breast leads to changes of the thoracic impedance which modulates the amplitude of the high frequency carrier signal Finally the modulated signal is sent to the measurement circuit The purpose of this module is generating the high frequency carrier RESP Signal Input Circuit This circuit couples the RESP signal to the detecting circuit RESP Signal Process Circuit The pre amplifying circuit conducts the primary amplification of the RESP signal and filters it The detecting circuit detects the RESP wave that has been modulated on the actuating signal The level shifting circuit removes the DC component from the RESP signal The main amplifying filtering circuit conducts the secondary amplification of the RESP signal filters the signal and then sends it to the A D conversion part A D The A D conversion part converts the analog signal to the digital signal and sends the signal to CPU for further processing CPU System a Implementing the logical control of all par
25. uerit 53 54 6 54 54 COG ae EEIN 55 Lo NO 55 110 Water 25 5 TAL Recorder e ve ORE Rd io n eor RENE 56 51 12 Power SUDDIV Lis E ERR ER D ERU RE 56 5113 1010 s st RR GER YU IOTER RUE S 56 5 71 14 System Test eam OR 57 5 2 NIBP CALIBRATION EO REVERSE IRE E UR EDI 57 Service Manual V 5 0 5 3 an robe 57 54 COZ CHECK rete RR E als NN A BR AAR OTR 60 5 AG GALIBRATE baie SIE eun ind uh 61 5 6 DPMS MATERIAL LIST eben ree e edid 63 CHAPTER 6 MAINTENANCE AND 0 00 65 6 1 MAINTENANCE 3 eode eld Aud edet ce aed 65 6 1 1 Checking Before Using ah 65 6 1 2 Hegular s I EA tid ette ipd 65 6 2 pe eR EU IE UM Ef 65 6 3 CLEANING REAGENT 4 5 eae nd mean inoue tunisien 65 64 gt STERILIZATION U i rr rr RII EROR bana TOTIS dts 66 6 5 DISINFECTION det te ue oe ete s tta le Det c pet bam 66 Service Manual V 5 0 FOR YOUR NOTES Chapter 1 About the Product Chapter 1 About the Product
26. weak in the HR calculation Verify the range and precision Suppose that the amplitude of the GCG signal of the simulator is 1mV the heart rates are respectively 30 60 120 200 240 and 300 Check leads 1 and Ill The results should meet 29 31 59 61 119 121 198 202 238 242 and 297 303 PACE pulse test Set the simulator to PACE You should be able to view the pace Change PACE amplitude to 8 700mv and pulse width to 0 1ms 2ms The PACE should be legible and LEAD OFF is displayed properly RESP measurement Set the baseline impedance to 1K the respiration impedance to 0 50 and 3Q and the respiration rate to 30 and 120 The respiration rate should be 29 31 118 122 PVC test Set the simulator to the PVC mode and set the occurrence times The relevant PVCS should be obtained Set the simulator as follows RR 40 baseline impedance 2KO RESP waveform 3 1 Open the apnea alarm set the respiration resistance to 0O and set various alarm time Alarms should be given 5 1 4 Temperature 1 YSI probe Select YSI probe from the manufacturer menu select YSI temperature probe as the test fixture set the analog resistance to 1 471K 1 355K and 1 249K Then 53 Chapter 5 Test and Material List 2 5 1 5 NIBP the TEMP parameter should be 35 0 1 C 37 0 1 C 39 0 1 C CY F1 probe Select CY F1 probe from the manufacturer menu select CY F1 temperature probe as the test fixture set the analo
27. 1 20 35928 Mounting plate of microstream CO 1 module 63 Chapter 5 Test and Material List FOR YOUR NOTES 64 Chapter 6 Maintenance and Cleaning Chapter 6 Maintenance and Cleaning 6 1 Maintenance 6 1 1Checking Before Using 6 1 2 Check the patient monitor for mechanical damages Check all exposed conductors connectors and accessories Check all functions that are possibly enabled for the monitored patient and ensure the device is in good working status In case of any damage stop using this patient monitor and contact biomedical engineers of the hospital or Mindray DS maintenance engineers Regular Checking An all around check including the safety check should be done by qualified personnel every 6 12 months or after maintenance each time All checks in which the patient monitor should be disassembled should be done by qualified maintenance personnel The safety and maintenance checks can be done by Mindray DS engineers The local office of Mindray DS at your region will be pleased to provide you with the information about the maintenance contract 6 2 Cleaning Do switch off the patient monitor and disconnect the AC power supply before cleaning it or the probes The 5 patient monitor should be dust free To clean the surface of its enclosure and screen use the cleaning agent that is not corrosive for example soap and water Do not use strong solvent such as acetone Most
28. 1 25 mm mV x0 125 2 5 mm mV 00 25 5 mm mV 0 5 33 Chapter 3 Product Specifications 10 mm mV x1 20 mm mV x2 and AUTO Sweep speed 12 5 mm s 25 mm s 50 mm s Diagnostic mode 0 05 to 150 Hz M08A module Bandwidth 3 dB Monitor mode 0 5 to 40 Hz Surgery mode 1 to 20 Hz Diagnostic mode 290 dB ue Monitor mode 2105 dB Common mode rejection Surgery mode 2105 dB The notch filter is turned off 50 60Hz Notch Filtering The monitor provides software filtering against the 50 60HZ industrial frequency In monitor and surgery modes the 50 60HZ filter will be turned on automatically In diagnostic mode the 50 60HZ filter will be turned off Input offset current lt 0 1 except currents to drive leads Differential input impedance gt 5 Input signal range 8mV peak to peak value Accuracy of input signal reproduction Methods A and D were used to establish overall system error and frequency response according to EC11 Auxiliary current Leads off Active electrode lt 0 1 pA detection Reference electrode lt 1 pA Patient leakage current lt 10uA Recovery time after lt 5s defibrillation Calibration signal 1 mV peak to peak value precision 5 ESU protection Incision mode 300W Congelation mode 100W Restore time lt 10s The monitor complies with the requirements of ANSI AAMI EC13 Section
29. 1 30 35923 Mounting assembly of microstream connector 11 6200 20 11614 CO nozzle 12 9200 20 10511 Foot plate 1 13 04 000501 Stainless steel nut GB6170MS 14 9201 30 35978 Fan assembly 49 Chapter 4 Disassembling Assembling amp Troubleshooting 4 1 6 Microstream CO Assembly 1 2A 34 Figure 4 6 Microstream CO assembly NO Material Code Part amp Specification 1 9201 30 35959 Microstream connector 2 04 003105 Cross head self tapping screw 3 8 3 9201 20 36010 Baffle of torsional spring 4 9201 20 35961 Retaining torsional spring of microstream connector 5 9201 20 35915 Mounting plate of connector 6 9201 20 35914 Baffle of connector 50 Chapter 4 Disassembling Assembling amp Troubleshooting 4 2 Troubleshooting 4 2 1 Black Screen Startup Failure Black screen 5 power supply N normal 5 AC power cora N normal Fault in power PCB Press the Power button Fault in the connection wire of the bution panel Fault in connection wire of backlight board Fault in the connection wire of the button panel Fault in the bulton panel Faull in backlight board Faull in connection wire from main control board Fault in connection wire from main control board to Fault in LCD display to power PCB power PCB Fault in connection wire from main contral Fault in the button panek Fault in pow
30. 4 2 9 14 ESU noise control The monitor uses the ECG leads meeting the requirements of AAMI based on the ECG baseline the peak noise lt 2 mV The monitor complies with the test method in EC13 Section 5 2 9 14 HR Neonate 15 to 350 bpm Measurement range Pediatric 15 to 350 bpm Adult 15 to 300 bpm Resolution 1 bpm Precision 1 bpm or 1 whichever is greater Trigger threshold level 200 uV lead IT Trigger indication There will be an audible beep on every beat captured 34 Chapter 3 Product Specifications Heart Rate Averaging The average Heart Rate is computed in line with the ANSI AAMI EC13 Section 4 1 2 1 d as follows The average heart rate is calculated on the basis of the mean RR interval of the last 16 beats unless the heart rate calculated using the last 4 beats is less than or equal to 48 then this rate is used The displayed Heart Rate is updated once per second Heart Rate Meter Accuracy and Response to Irregular Rhythm When tested in accordance with the ANSI AAMI EC13 Section 4 1 2 1 e the indicated heart rate after a 20 second stabilization period is Figure 3a Ventricular Bigeminy 80 1 bpm Figure 3b Slow Alternating Ventricular Bigeminy 60 1 bpm Figure 3c Rapid Alternating Ventricular Bigeminy 120 1 bpm Figure 3d Bi directional Systoles 90 2 bpm Response time to heart rate changes Meets the requireme
31. 65 Pulse amplitude gt 0 02 Low perfusion conditions Light penetration gt 5 Low perfusion accuracy 2 PR Measurement range 25 to 240 bpm Resolution 1 bpm M 3 bpm non motion conditions Precision 5 bpm in motion conditions Refreshing rate 15 37 Chapter 3 Product Specifications Nellcor SpO Module All SpO sensors specified in the section Nellcor SpO2 Accessories meets the following specifications when used with Nellcor SpO module Sensor Range Precision MAX A MAX AL MAX N 70 to 100 2 MAX P MAX I and MAX FAST 0 to 69 Undefined SpO2 measurement range OxiCliq A OxiCliq P 70 to 100 22 596 and precision OxiCligq I 0 to 69 Undefined D YS DS 100A OXI A N and 70to 100 3 OXI P I 0 to 69 Undefined 70 to 100 3 5 MAX R D YSE and D YSPD 0 to 69 Undefined PR measurement range and 20 to 250 bpm 3 bpm precision 251 to 300 bpm Undefined Refreshing rate 15 Averaging time 85 165 When sensors are used neonatal subjects as recommended specified precision range is increased by 1 to account for the theoretical effect on oximeter measurements of fetal hemoglobin in neonatal blood 3 11 NIBP Specifications Measurement technique Auto oscillation Displayed parameters Systolic pressure diastolic pressure mean
32. M 1 BrPM AwRR measurement 70 to 120 BrPM 2 BrPM precision 121 to 150 BrPM 3 BrPM Apnea alarm delay AwRR 10 to 40s Precision applies for breath rates of up to 80 bpm For breath rates above 80 bpm accuracy complies with EN ISO 21647 ISO 21647 ISO 9918 4 mmHg or 12 of reading whichever is greater for EtCO2 values exceeding 18 mmHg To achieve the specified accuracies for breath rates above 60 breaths minute the Microstream FilterLine H Set for Infant Neonatal p n 006324 must be used The accuracy specification is maintained to within 4 of the values indicated in the above table in the presence of interfering gases according to EN ISO 21647 ISO 21647 Section Eleven Part 101 42 Chapter 3 Product Specifications 3 16 AG Specifications Measurement technique Infrared absorption Measurement mode Sidestream AG functions Meets requirements of ISO9918 ISO11196 EN12598 and 1507767 Warm up time 45 seconds warming up status 10 minutes ready to measure status Sampling flow Adult Pediatric 120 150 200 ml minute user selectable sidestream Neonatal 70 90 120 ml minute user selectable Gas type CO2 N20 O2 optional Des Iso Enf Sev Hal CO2 0 to 30 N20 0 to 100 Des 0 to 30 Measurement range Sev 0 to 30 Enf Iso Hal 0 to 30 02 0 to 100 AwRR 2 t
33. PU exchanges data with the Ethernet through the Ethernet Controller Analog Output The D A converter converts the digital ECG IBP signals sent from CPU to the analog signals which are provided for the external after low pass filtered by the filter and amplified by the amplifier FPGA and VRAM VRAM stores the displayed data CPU stores the displayed data to VRAM through FPGA FPGA gets data from VRAM processes them and then sends them to the relevant graphic display device In addition FPGA also extends multiple serial ports which communicate with peripheral modules FPGA transfers the received data to CPU through the bus CPU delivers data to FPGA through the bus and then the FPGA transfers those data to the peripheral modules Watchdog When powered on watchdog provides reset signals for CPU FPGA and Ethernet Controller The patient monitor provides the watchdog timer output and voltage detection functions 2 2 2 ECG RESP TEMP Module 2 2 2 1 General This module provides the function of measuring three parameters electrocardiograph ECG respiration RESP and temperature TEMP Chapter 2 Principles 2 2 2 2 Principle diagram Pace Detect ECG Signal Input Circuit ECG Signal Process Circuit Temperature Detect Circuit CPU System Power amp RAM n Main Watchdog Signal 9 isolate Circuit board RESP Signal RESP Signal Input Circuit Process Circuit 4 Carrier
34. RNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury NCAUTION 2 Meaning of Safety Symbols Symbol Description Type BF applied part Attention Refer to the operation manual Safety Precautions Please observe the following precautions to ensure the safety of service engineers as well as operators when using this system Service Manual V 5 0 ANWARNING Do not connect this system to outlets with the same circuit breakers and fuses that control current to devices such as life support systems f this system malfunctions and generates an over current or when there is an instantaneous current at power ON the circuit breakers and fuses of the building s supply circuit may be tripped Do not use flammable gases such as anesthetics or flammable liquids such as ethanol near this product because there is danger of explosion NCAUTION 1 Malfunctions due to radio waves 1 Use of radio wave emitting devices in the proximity of this kind of medical electronic system may interfere with its operation Do not bring or use devices which generate radio waves such as cellular telephones transceivers and radio controlled toys in the room where the system is installed If a user brings a device which generates radio waves near the syste
35. W Controlling the status of LED W Controlling the audio process circuit 16 Chapter 2 Principles W Regularly resetting the Watchdog timer Communicating with the main board Audio Process Circuit This circuit generates audio signals and drives the speaker Watchdog When powered on the Watchdog provides the reset signal for CPU The patient monitor provides the watchdog timer output and voltage detection functions 2 2 8 Power PCB 2 2 8 1 General This module provides DC working current for other boards 2 2 8 2 Principle diagram 5V Power Supply 5V DC DC Battery gt Battery Control Voltage Detect Main Circuit Circuit board 12V DC DC Power Switch 12V Power Supply Circuit Figure 2 11 Working principle of the power PCB 2 2 8 3 Principle This module can convert 220V AC or the battery voltage to 5V DC and 12V DC voltages which are supplied for other boards When the AC voltage and batteries coexist the AC voltage is supplied for the system and used to charge the batteries AC DC This part converts the AC voltage to the low DC voltage for the subsequent circuits besides it supplies the power for charging the batteries Battery Control Circuit When the AC voltage and batteries coexist this circuit controls the process of charging the batteries with the DC voltage converted by the AC DC part When the AC voltage is unavailable this circuit controls the batteries to suppl
36. ameter parts and A D conversion parts Implementing the data processing for all parameters Implementing the communication with the main board Power amp Signal isolate Circuit u Isolating the external circuits to ensure the safety of human body Supplying power for all circuits Implementing the isolation communication between the CPU System and the main board Chapter 2 Principles 2 2 8 CO IBP Module 2 2 3 1 General This module provides the function of measuring two parameters Cardiac Output CO and Invasive Blood Pressure IBP 2 2 3 2 Principle diagram m CO Signal Process Circuit TB CPU System RAM ROM Power amp Mai AJD Signal board Watchdog isolate Circuit IBP1 IBP Signal Process Circuit IBP2 Figure 2 6 Working principle of the CO IBP module 2 2 3 3 Principle This module collects the CO IBP signal through the transducers processes it and sends it to the main board throgh the serial port CO Signal Process Network The CO parameter is measured with the thermal dilution method The transducer sends two signals TI Temperature of Injectate TB Temperature of Blood to the CO Signal Process Network After that the signals are amplified and low pass filtered and then sent to the CPU System for processing IBP Signal Process Network The IBP signal is the differential signal After the common mode filtering the difference signal is amplified by t
37. anty does not include any transportation or other charges or liability for direct indirect or consequential damages or delay resulting from the improper use or application of the product or the substitution upon it of parts or accessories not approved by Mindray or repaired by anyone other than a Mindray authorized representative This warranty shall not extend to any instrument which has been subjected to misuse negligence or accident any instrument from which Mindray s original serial number tag or product identification markings have been altered or removed or any product of any other manufacturer Safety Reliability and Performance Mindray is not responsible for the effects on safety reliability and performance of the DPM5 Patient Monitor if assembly operations extensions re adjusts modifications or repairs are carried out by persons other than those authorized by Mindray the DPM5 is not used in accordance with the instructions for use or the electrical installation of the relevant room does not comply with NFPA 70 National Electric Code or NFPA 99 Standard for Health Care Facilities Outside the United States the relevant room must comply with all electrical installation regulations mandated by the local and regional bodies of government Service Manual V 5 0 Return Policy Return Procedure In the event that it becomes necessary to return a unit to Mindray DS the following procedure should be followed
38. are loading and conduct operations on the menus for example managing the patient information recalling data and so on All the operations should be done normally and the corresponding functions should be correct and meet the product requirements 5 2 NIBP Calibration ITEM DESCRIPTION QTY 1 Pressure gauge 1 2 500 steel bottle 3 Inf lator 1 4 T piece 2 5 Windpipe nese 522 Figure 5 1 NIBP Calibration Calibration method Based on the precision of 50mmHg 6 7kPa increase the pressure step by step The maximum error at any pressure point within the NIBP measurement range of the patient monitor should be no more than 3mmHg 0 4kPa Decrease the pressure step by step The maximum error at any pressure point within the NIBP measurement range of the patient monitor should be no more than x3mmHg 0 4kPa 5 3 IBP CALIBRATE 5 3 1 IBP Transducer Zero W Press the ZERO button on the IBP module to call up IBP PRESSURE ZERO menu as shown below 57 Chapter 5 Test and Material List IBP PRESSURE ZERO Being Prepared press ZERO key CH1 ZERO 00 00 0000 00 00 00 CH2 ZERO 00 00 0000 00 00 00 Back to the upper menu Figure 5 2 IBP PRESSURE ZERO Zero Calibration of Transducer Select CH1 the system will zero IBP1 Select CH2 the system will zero IBP2 Cautions Use the PM 6000 IBP module as a example Turn off patient stopcock before you start the zero procedure The transducer mus
39. circuit Therefore the lead off can be detected with a comparator and the state of lead off can be converted TTL level for the Micro Controller Unit MCU to detect it 5 Lead circuit Under the control of MCU the lead electrodes should be connected to the main amplification circuit 6 Main amplification circuit The measurement amplifier is composed of 3 standard operation amplifiers 7 Subsequent processing circuit This circuit couples the ECG signals remotely controls the gains filters the waves shifts the level amplifies the signal to the specified amplitude and sends the signal to the A D converter RESP The DPM5 patient monitor measures the RESP based on the impedance principle While aman is breathing the action of the breast leads to impedance changes between RL and LL Change the high frequency signal passing the RL and LL to amplitude modulation high frequency signal AM high frequency signal which is converted to the electric signal after being detected and amplified and then sent to the A D converter The RESP module consists of the RESP circuit board and coupling transformer The circuit has several functions vibration coupling wave detection primary amplification and high gain amplification 2 4 8 NIBP The NIBP is measured based on the pulse vibration principle Inflate the cuff which is on the forearm till the cuff pressure blocks the arterial blood and then deflate the cuff according to a specified algorith
40. cleaning agents must be diluted before being used so conduct dilution under the instruction of manufacturers Do not use any erosive material such as steel wool or polishing agent Prevent the ingress of any liquid to the enclosure and any part of the device Ensure no residue of cleaning liquid on the surface of the device 6 3 Cleaning Reagent a YN Diluted aqua ammonia Diluted sodium hypochlorite bleaching powder for washing Diluted formaldehyde 35 37 Hydrogen peroxide 3 Ethanol 65 Chapter 6 Maintenance and Cleaning 6 Isopropyl alcohol 6 4 Sterilization To avoid the long time damage to the patient monitor we recommend you Y conduct only sterilization which is considered necessary in your maintenance plan Y clean the patient monitor before the sterilization Y sterilize the patient monitor with specified sterilization agent Ethylate and Acetaldehyde For the sterilization agents of the ECG leads and blood pressure cuffs refer to relevant chapters in Operation Manual A cautionA m Conduct dilution or use the liquid of the possibly lowest concentration under the instructions by the manufacturer Prevent the ingress of liquid to the enclosure Prevent part of the system from being dipped In sterilization do not spill the liquid to the patient monitor Ensure no residue of sterilization agent on the surface of the patient monitor Clean it i
41. e for accurate measurement Body surface lt 100s Body cavity lt 80s YSI 400 series sensor 3 13 IBP Specifications Number of channels 2 Pressure readings Systolic diastolic mean pressures and PR Pressure labels ART PA RAP LAP ICP P1 and P2 Linear input range will be 50 to 300 mmHg after zeroing ART 0 to 300 mmHg PA 6 to 120 mmHg Measurement range CVP RAP LAP ICP 10 to 40 mmHg P1 P2 50 to 300 mmHg Resolution 1 mmHg Precision 2 or 1mmHg whichever is greater ner will be 5 Volts DC 2 Excitation Minimum load resistance will be 300O per transducer Update period Is Zero offset range 200 mmHg 39 Chapter 3 Product Specifications Zero accuracy 1 mmHg Noise lt 0 5 mmHg RTI DC to 12 5 Hz 300Q source impedance Drift lt 0 15 mmHg C will not exceed 1 mmHg in 24 hours Frequency Response DC 12 5Hz 1 Hz 3db PR from IBP Measurement range 25 to 350 bpm Precision 25 to 350 bpm 1 or 1 whichever is greater Resolution 1 bpm Pressure transducer Excitement voltage 5 VDC 2 Sensitivity 5 uV V mmHg Impedance range 300 to 30000 Volume displacement ABBOTT lt 0 04 mm 100 mmHg 3 14 CO Specifications Measurement technique Thermal dilution
42. e normal SpO value is above 97 5 1 7 IBP 1 Test fixture Physiological signal simulator 2 Test procedure IBP1 test Set the BP sensitivity of the ECG simulator to 5uv v mmHg BP to OmmHG and the IBP channel 1 to ART Enter the IBP PRESSURE ZERO menu of the DPM5 zero Channel 1 and then return to the main screen Set the BP of the simulator to 200mmHg Enter the IBP PRESSURE CALIBRATE menu of the DPM5 conduct calibration and then exit the IBP PRESSURE CALIBRATE menu Set the BP value of the simulator respectively to 40mmHg 100mmHg and 200mmHg Then the screen of the DPM5 should display 40 1mmHg 100 2mmHg 200 4mmHg Set the simulator output to ART wave Then the screen of the DPM5 should display 54 Chapter 5 Test and Material List 5 1 8 CO 1 2 relevant waveform properly Unplug the IBP probe Then the screen should prompt IBP Transducer 1 OFF and IBP Transducer 2 OFF Plug the OHMEDA cable to the IBP1 channel Then the prompting message IBP Transducer 1 OFF disappears IBP2 test Plug the IBP cable to the IBP2 channel and repeat the procedure in Section Test fixture Physiological signal simulator Test procedure Injectate and blood temperature test Assemble the TB and TI test fixture output three TB temperature values 36 37 C and 38 C Then TB should be respectively 36 0 0 1 37 0 0 1 and 38 0 0 1 C Set the injectate switch to ON output t
43. ent monitor through the control panel For example you can set different alarm limits for different patients Thus when the patient monitor detects any physiological parameter exceeding the preset alarm limit it will enable the audio and visual alarm 1 2 Application 1 2 1 General In the treatment processes it is necessary to monitor important physiological information of patients Therefore the patient monitor has been playing an outstanding role among medical devices The development of technology does not only help medical staff get the important physiological information but also simplifies the procedures and makes it more effective For patients in hospital the basic and important physiological information is required including ECG SpO RESP IBP CO TEMP etc In recent years the development of science and technology helping measure and get important physiological information of patients has made the patient monitor more comprehensive in performance and better in quality Today multi parameter patient monitors are widely used Chapter 1 About the Product 1 2 2 Usage Parameters that the DPM5 can monitor include ECG RESP SpO2 NIBP TEMP IBP CO AGand DPMS converts these physiological signals to digital signals processes them and displays them on the screen You can set the alarm limit as required When the monitored parameter exceeds the preset alarm limit the patient monitor will start the alarm fu
44. er 3 Product Specifications 75 When the sensitivity is set to High Averaging time 9 s When the sensitivity is set to Medium 11 s When the sensitivity is set to Low PR Measurement range 20 to 254 bpm Resolution 1 bpm Precision 3 bpm non motion conditions Refreshing rate ls A study was performed to validate the accuracy of this monitor with 520N SpO2 sensor Totally 122 neonates 65 male amp 57 female aged from 1 day to 30 days with a gestation age of 22 weeks to full term were involved in this study The statistical analysis of the 200 pairs of data over the range of 72 to 100 SaO2 of this study shows that the accuracy Arms is 2 47 digits which is within the stated accuracy specification Another study performed on adult subjects also shows the effectiveness This monitor with 520N SpO2 sensor was validated on adult subjects 1 62 Arms and that actual performance in the neonatal population was observed Masimo SpO Module All SpO sensors specified in the section Masimo SpO2 Accessories meets the following specifications when used with Masimo SpO module SpO2 Measurement range 1 to 100 Resolution 1 70 to 100 2 adult pediatric non motion conditions 70 to 100 3 neonate non motion conditions Precision v 70 to 10096 3 in motion conditions 0 to 69 Undefined Refreshing rate 15 Averaging time 2 4 6 4 65 8s 105 12s 14s 1
45. er PCB board to power Fault in power PCB Fault in main control board Fault in power PCB Faull in main control board Fault in main control board Check update those components one by one to locate the fault Figure 4 7 Location flow of faults causing black screen 51 Chapter 4 Disassembling Assembling amp Troubleshooting 4 2 2 White Screen amp Other Abnormal Screen In case of faults causing white screen or other abnormal screens Check whether the LCD connection wires in good contact Replace the LCD connection wires or replace the LCD if necessary Replace the main control board if the fault still exists 4 2 3 Encoder Faults 1 If all other functions indicator alarm buttons of the button panel are normal proceed to step 2 otherwise replace the button panel 2 Check whether short circuit or abnormal open circuit occurs in the encoder pad 3 Replace the encoder 4 2 4 No Audio Alarm 1 Check whether the audio alarm function is disabled in the software settings 2 Replace the speaker 3 Replace the button panel 4 2 5 Printing Failure 1 Check whether there is any alarm about the recorder If any eliminate it Check whether the recorder indictor is on If not check the connection wire for inputting signals to the recorder Check whether the recorder module is enabled in the maintenance menu Check the power cord of the recorder including the recorder power PCB oa
46. f any 6 5 Disinfection To avoid the long time damage to the patient monitor we recommend you Y conduct only disinfection which is considered necessary in your maintenance plan Y clean the patient monitor before the disinfection For the disinfections of ECG leads sensor blood pressure cuffs and temperature sensor refer to relevant chapters in Operation Manual Gas EtO or formaldehyde are forbidden for the disinfection of the patient monitor 66 Mindray DS USA Inc 800 MacArthur Blvd Mahwah New Jersey 07430 USA Tel 1 800 288 2121 Tel 1 201 995 8000 www mindray com P N 046 000183 00 5 0
47. g The average Heart Rate is computed in line with the ANSI AAMI EC13 Section 4 1 2 1 d as follows When the last 3 R to R intervals gt 1200 ms compute the average of the last 4 R to R intervals otherwise compute the average of the last 12 R to R intervals minus the longest and shortest intervals The displayed Heart Rate is updated once per second Heart Rate Meter Accuracy and Response to Irregular Rhythm When tested in accordance with the ANSI AAMI EC13 Section 4 1 2 1 e the indicated heart rate after a 20 second stabilization period is Figure 3a Ventricular Bigeminy 80 1 bpm Figure 3b Slow Alternating Ventricular Bigeminy 60 1 bpm Figure Rapid Alternating Ventricular Bigeminy 120 1bpm Figure 3d Bi directional Systoles 90 2 bpm Response time to heart rate changes Meets the requirement of ANSI AAMI EC13 Section 4 1 2 1 f Less than 11 sec for a step increase from 80 to 120 BPM Less than 11 sec for a step decrease from 80 to 40 BPM 32 Chapter 3 Product Specifications Response time of tachycardia alarm When tested in accordance with ANSI AAMI EC13 Section 4 1 2 1 g the response time is as follows Figure 4ah range 15 7 to 19 2s average 17 4s 4a range 5 7 to 8 55 average 7 55 4ad range 3 6 to 5 1s average 4 2s Figure 4bh range 11 5 to 14 7s average 12 9s 4b range 4 to 14s average 7 2s 4bd range 6 6 to 14 5
48. g resistance to 6 534K 6 018K and 5 548K Then the TEMP parameter should be 35 0 1 37 0 1 C and 39 0 1 C Connect the NIBP simulator adult cuff and accessories and then connect the module CUFF and clockwise screw it tightly 1 5 1 6 SpO After the simulator self test press ENT to enter the ADULT analog blood pressure mode Set the blood pressure to the 255 195 215 mmHg level SHIFT to 15 and the HR to 80BPM Set DPM5 to the adult mode Press START Then the results will be obtained in about 30s The measured results should be respectively 270 8 210 8mmHg and 230 8 Press lt ESC gt and on the simulator to enter the NEONATE mode Set the blood pressure to the 120 80 90 mmHg level HR to 120bmp and DPM5 to the pediatric mode Press lt START gt Then the results will be obtained in about 30s The measured results should be respectively 120 8mmHg 80x8mmHg 90 8mmHg Press lt ESC gt and lt gt on the simulator to enter the NEONATE mode Set the blood pressure to the 60 30 40 mmHg level SHIFT to 20 HR to 120bmp and DPM5 to the neonate mode Change the simulator accessory to the neonatal cuff Press lt START gt Then the results will be obtained in about 30s The measured results should be respectively 40 8mmHg 10 8mmHg and 20 8mmHg Select PLETH as the HR source of 5 and put the finger into the SpO sensor The screen should display the PR and SpO values normally Th
49. he difference amplifying circuit which changes the dual end signal to the single end signal After the low pass filtering the IBP signal is sent to the CPU System for processing CPU System Converting the analog signal obtained by the circuit to the digital signal implementing the logical control of all parameter parts implementing the data processing for the two parameters Implementing the communication with the main board Power amp Signal isolate Circuit Isolating the external circuits to ensure the safety of human body Supplying power for all circuits implementing the isolation communication between the CPU System and the main board 12 Chapter 2 Principles 2 2 4 SpO Module 2 2 4 1 General This module provides the function of measuring the Pulse Oxygen Saturation SPO 2 2 4 2 Principle diagram 5 02 SPO2 Signal AD m gt Process Circuit T CPU System RAM ROM Power amp Watchdog Signal Main Logic Control isolate Circuit board LED Led Drive Circuit Figure2 7 Working principle of the SpO2 module 2 2 4 8 Principle The measurement principle 1 Collecting the light signal of the red light and infrared transmitting through the finger or toe which is pulsing 2 Processing the collected signal to get the measured result The drive circuit of the LED and the gain of the amplifying circuit should be controlled acco
50. int it normally and clearly Set the recorder to the fault of lack of paper and abnormal clip There should be relevant prompting messages on the main screen When the fault is cleared the patient monitor should become normal 2 Print the alarm messages of all parameters Set the alarm print switch to ON for all parameters and set different alarm limits Then the recorder should print the alarm message in case of an alarm 5 1 12 Power Supply When the patient monitor is supplied with the external AC power the CHARGE indicator becomes ON When it is disconnected from the external AC power the CHARGE indicator becomes OFF After the patient monitor is started without assembling the batteries x is displayed in the battery indication frame on the main screen After the batteries are assembled the battery electricity is displayed in the battery indication frame on the main screen The patient monitor can work normally with or without batteries It however should give an alarm when the batteries are exhausted 5 1 13 Clock Verify the correctness of the clock in the system test and then set the clock to the current time 56 Chapter 5 Test and Material List 5 1 14 System Test Load all parameters and conduct operations respectively on the loaded parameters During the synchronization no exceptions for example mutual interference occur Set all parameter setups in menus to the default values which are those at the time of softw
51. is at the same time of using monitoring equipment correctly manual monitoring should be carried out This multi parameter patient monitor is intended for use only by medical professionals in health care institutions To avoid electrical shock you shall not open any cover by yourself Service must be carried out by qualified personnel Use of this device may affect ultrasonic imaging system in the presence of the interfering signal on the screen of ultrasonic imaging system Keep the distance between the monitor and the ultrasonic imaging system as far as possible It is dangerous to expose electrical contact or applicant coupler to normal saline other liquid or conductive adhesive Electrical contact and coupler such as cable connector power supply and parameter module socket inlet and frame must be kept clean and dry Once being polluted by liquid they must be thoroughly dried If to further remove the pollution please contact your biomedical department or Mindray DS It is important for the hospital or organization that employs this equipment to carry out a reasonable maintenance schedule Neglect of this may result in machine breakdown or injury of human health Service Manual V 5 0 Warranty THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF MERCHANT ABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE Exemptions Mindray s obligation or liability under this warr
52. isplay there is a special requirement on the power supply so a backlight board is used The batteries supply power for the system for a short time when there is no external AC current The fan is used for the heat sink of the system 2 1 5 Other Auxiliary Functions The DPM5 patient monitor also provides the network upgrade function for the service engineers to upgrade the system software without disassembling the enclosure Chapter 2 Principles 2 2Hardware Description The structure of the DPM5 patient monitor is shown in the following figure FAN SCREEN n n ALARM LAMP KEY BOARD MODULE REPRODUER RECORDER Y MODULE nux ram nmn x nem nm LIL we TU nm mi MAIN BOARD POWER BOARD al BATTERY VGA x 9 NET 02 02 NIBP IBP AG x10 x1 2 AUX i qh fF E SE 0 AG IG 502 Cuff able Cable Sensor Cable Figure 2 2 Functional structure of the DPM5 Chapter 2 Principles The DPM5 PCB connection is shown in the following figure 11 05 PA TFT DIGITAL P10 Button Panel 9000 VGA P12 P7 BDM P11 Main Board 5 P13 xi yy Recorder Module P16 X7 X8 02 Module Module IBP CO Module X11 X12 Figure 2 3 PCB connection Basic functions and working principles of modules are described
53. k Dormant for a period WatchDog management task etting an event S Legend Getting an event Network connection task System event IBP processing task Dormant for a period System monitoring task Dormant for a pariod Dormant for a period Network receiving lask Sending a message to pipeline or queue Pipeline or queue Getting a message from pipeline or queue Figure 2 13 System task 20 Chapter 2 Principles 2 4 System Parameter 2 4 4 General For the DPM5 patient monitor signals are collected by modules and the results are transferred to the main board through the adapter board thus to process and display the data and waveforms Commands from the main board as well as the status information of modules are transferred through the adapter board In addition the adapter board adapts and changes the power supply The structure of the whole system is shown in the following figure Doctor Button panel Display ECGIR si ail NIBP 5 0 Network Figure 2 14 System structure As shown in Figure 2 14 the five modules and measurement cables monitor and measure NIBP SpO ECG RESP TEMP IBP CO and CO in real time and send the results to the main board for proces
54. line flows into the pulmonary artery its temperature will be sensed by the temperature transducer According to the injection time and temperature change the patient monitor can analyze the CO and calculate the Cardiac Index Cl Stroke Volume Index SVI SVIs of the left atrium and right atrium Pulmonary Vascular Resistance PVR and so on 2 4 8 The module works based on the infrared spectrum absorption principle According to different connection methods the infrared light transducer is classified as sidestream infrared light transducer The sidestream module is composed of the circuit board inbuilt sidestream infrared light transducer deflation pump and control When used this module requires the external water trap drying pipe and sampling tube In the sidestream mode the deflation rate can be set to 100ml min 150ml min or 200ml min according to the patient situation In the AG monitoring multiple compensations can be set such as hydrosphere oxygen temperature and desflurane Des When the CO measurement is not being conducted the sidestream deflation pump and the infrared source are expected to be shut down thus to extend the service life and reduce the power consumption of the module There is no windpipe which is available in the sidestream mode 2 4 9 AG The Anesthesia Gas AG can be used to measure the AG and respiration gas of the anesthetized patient The AG concentration is measured based on the
55. m While the cuff pressure is decreasing the arterial blood has pulses which are sensed by the pressure transducer in the cuff Consequently the pressure transducer connected with the windpipe of the cuff generates a pulsation signal Then the pulsation signal is filtered by a high pass filter about 1Hz amplified converted to the digital signal by the A D converter and finally processed by the MCU After that the systolic pressure diastolic pressure and mean 22 Chapter 2 Principles pressure can be obtained For neonates pediatric and adults it is necessary to select the cuffs of a proper size to avoid possible measurement errors In the NIBP measurement there is a protection circuit used to protect patient from over high pressure The NIBP measurement modes include 1 Adult pediatric neonate mode To be selected according to the build weight and age of the patient 2 Manual Auto Continuous mode The manual measurement is also called single measurement in this mode only one measurement is done after being started In the auto measurement mode the measurement can be done once within the selected period with the interval being 1 2 3 4 5 10 15 30 60 90 120 180 240 or 480 minutes In the continuous measurement mode quick continuous measurement will be done within 5 minutes after being started it detects the changes in blood pressure effectively 2 4 4 SpO The SpO value is obtained through the pulse wa
56. m they must be instructed to immediately turn OFF the device This is necessary to ensure the proper operation of the system 2 Do not allow fluids such as water to contact the system or peripheral devices Electric shock may result VI Service Manual V 5 0 Symbols Be Careful 4 Protective earth ground Indicates that the instrument is 60601 1 CF equipment The unit displaying this symbol contains an F Type isolated floating patient applied part providing a high degree of protection against shock and is suitable for use during defibrillation Equipotential grounding terminal X Silence Symbol MarkEvent Highest level alarm Lowest level alarm V Trend graph cursor DIA pressure NIBP trend graph Right moving indicator Heart beat x Gain magnify SN Series Number Close all alarm volume Next menu mm Middle level alarm Alarm pause Y SYS pressure trend graph 7 MEAN pressure NIBP trend graph Left moving indicator Pace signal Y Confirm VII Service Manual V 5 0 FOR YOUR NOTES VIII Service Manual V 5 0 Con tents CHAPTER 1 ABOUT THE PRODUCT cccscssssssssssssssssssssssssesssssssssssesessssssessssescsssssessasececsasers 1 1 1 WNTRODUGTION Re ec bl b ee 1 1 2 APPLICATION tetti etd ea eite eroe trier ass 1 1 2 1 GONET A PESE EP
57. nction In addition you can control the patient monitor through the control panel Usually patient monitors are seen in some clinical areas in hospital such as ICU CCU intensive care units for heart disease patients operating rooms emergency departments and observation wards They can also be used in clinics The DPM5 patient monitor should be run under the control of clinical staff DPM5 patient monitor has the following functions ECG Heart Rate HR 2 channel ECG waveform Arrhythmia analysis and S T analysis optional RESP Respiration Rate RR Respiration waveform SpO Pulse Oxygen Saturation SpO Pulse Rate PR SpO Plethysmogram NIBP Systolic pressure NS diastolic pressure ND mean pressure NM TEMP T1 T2 TD IBP CH1 SYS DIA CH2 SYS DIA IBP waveform CO Temperature of blood TB Cardiac Output CO CO End tidal carbon dioxide EtCO Inspired minimum CO InsCO Airway Respiration Rate AWRR AG Inhaled and exhaled CO FiCO EtCO Chapter 1 About the Product Inhaled and exhaled FiN2O Inhaled and exhaled FiO2 Inhaled and exhaled anesthetic agent FiAA EtAA where AA refers to any of the following anesthetic agents HAL Halothane ISO Isoflurane ENF Enflurane SEV Sevoflurane DES desflurane Airway Respiration Rate rpm Respiration Per Minute AWRR Minimum Alveolar Concentration MAC 4 AG waveforms N20 AA The DPM5 provides the
58. nt of ANSI AAMI EC13 Section 4 1 2 1 f Less than 11 sec for a step increase from 80 to 120 BPM Less than 11 sec for a step decrease from 80 to 40 BPM Response time of tachycardia alarm When tested in accordance with ANSI AAMI EC13 Section 4 1 2 1 g the response time is as follows 4 30 to 5 34s average 4 75s 3 94 to 5 92s average 4 69s 4 28 to 5 18s average 4 78s 3 57 to 8 22s average 4 83s 3 09 to 4 1 1s average 3 64s 4bd range 3 20 to 4 52s average 4 09s Figure 4ah range 4a range 4ad range Figure 4bh range 4b range Tall T Wave Rejection When tested in accordance with the ANSI AAMI EC13 Section 4 1 2 1 c the heart rate meter will reject all T waves with amplitudes less than 1 2 mV 100 ms QRS a T wave duration of 180ms and a Q T interval of 350 ms Pace pulse Pulse indicator Pace pulses meeting the following conditions are marked by the PACE indicator Amplitude 4 to 700 mV 3 5 lead 2 to 700 mV 12 lead Width 0 1 to 2 ms Rise time 10 to 100 us Pulse rejection When tested in accordance with the ANSI AAMI Sections 4 1 4 1 and 4 1 4 3 the heart rate meter rejects all pulses meeting the following conditions Amplitude 2 to 700 mV Width 0 1 to 2 ms Rise time 10 to 100 us Min input slew rate 20 V s RTI 35 Chapter 3 Product Specifications ST segment measuremen
59. o 100 BrPM 2 1 mmHg Resolution AwRR 1 BPM Precision Gas Range REL Precision ABS 0 to 1 0 1 1 0 5 0 2 2 5407 0 3 7 to 10 0 5 gt 10 Not specified 0 to 20 2 N20 20 to 100 3 0 to 0 15 5 0 2 Be 5 to 10 0 4 10 to 15 0 6 15 to 18 1 gt 18 Not specified 001 0 15 T 1 to 5 0 2 5 108 0 4 gt 8 Not specified Enf Iso Hal 0 to 1 0 15 1 to 5 0 2 43 Chapter 3 Product Specifications gt 5 Not specified 0 to 25 1 O2 Optional 25 to 80 2 80 to 100 3 2 to 60 BrPM 1 BrPM AwRR gt 60 BrPM Not specified Drift meet the requirement of accurancy in 6 hours CO2 0 to 10 0 to 76 mmHg Alarm range AwRR 2 to 100 BrPM Apnea alarm delay AwRR 20 to 40 s Refreshing rate Is Calibration Yearly calibration requested Calibration stability After module being used for 12 consective months the error is lt 1 Rise time 10 to 90 CO2 250 ms fall time 200 ms Sampling flow 120ml min N20 250 ms using the DRYLINE 02 600ms water trap and neonatal HAL ISO SEV DES 300 ms DRYLINE sampling ENF 350 ms line 2 5m Rise time 10 to 90 2 250 ms time 200 ms Sampling flow 200ml min N20 250 ms using the DRYLINETM 02 500ms water trap and adult HAL ISO SEV DES 300 ms DRYLINE sampling ENF 350 ms line 2 5m Delay time lt 4s 44
60. o the single end signal meanwhile this circuit sends a channel of signal to the A D conversion part and the other to the DC isolating and amplifying circuit The DC isolating and amplifying circuit removes DC components from the signal amplifies the signal and then sends it to the A D conversion part A D The A D conversion part converts the analog signal to the digital signal and sends it to the CPU System for further processing Over Pressure Detect The circuit detects the NIBP pressure signal Once the pressure value exceeds the protected pressure value it will send a message to the CPU System which asks the Valve Drive Circuit to open the valve to deflate the cuff CPU System implementing the logical control of all the circuits implementing the data processing for the NIBP parameter implementing the communication with the main board 2 2 6 Recorder Module 2 2 6 1 General This module is used to drive the heat sensitive printer 2 2 6 2 Principle diagram Printer Status Detect Circuit Line Thermal Printer CPU System RAM ROM Main ii A Watchdog 4 09 board uw Logic Control Step Motor Drive Circuit Figure 2 9 Working principle of the recorder module 2 2 6 3 Principle This module receives the to be printed data from the main board converts them to the dot matrix data sends them to the heat sensitive printer and drives the printer 15 Chapter 2 Principles
61. on to 0 7 Select CALIBRATE to start calibration 8 Ifthe calibration is finished successfully the message CALIBRATION COMPLETED is displayed If the calibration failed the message AG CAL FAILED is displayed Perform another calibration 9 Select EXIT to exit the current menu 62 Chapter 5 Test and Material List 5 6 DPM5 Material List NO Material Code Name amp Specification Quantity 1 04 004012 Gasketed cross head screw M3 6 24 2 9200 20 10689 Recorder regulating panel 1 3 04 005005 Cross head sunk screw M3 6 14 4 9201 20 35965 Support 1 5 04 002505 Cross head screw M3 6 10 6 9210 30 30150 9210 main control board 1 7 9201 30 35922 Battery compartment assembly Lithium 1 battery 8 05 010001 06 Lithium battery 2 9 9200 20 10516 Insulating plate of ECG board 1 10 812A 30 08557 812A ECG board 1 11 04 060009 Stud M3 14 1 12 9200 20 10677 Insulating plate of mounting plate 3 1 13 9200 20 10676 SPOJIBP mounting plate 1 14 9200 20 10678 Insulating plate of mounting plate 4 1 15 30 26050 IBP CO module 1 16 630D 30 09121 630D blood pressure pump 1 17 0010 10 12275 MASIMO SpO module 1 28 9201 20 36012 Power PCB insulating plate 1 29 9201 30 35901 Lithium battery power PCB 1 20 9210 30 30163 Pinboard assembly 1 21 9201 30 35908 Microstream CO adapter board 1 22 9201 30 35955 Microstream module 1 23 920
62. parator consisting of operation amplifiers When the probe is disconnected the voltage input is lower than the comparing voltage so the voltage comparator outputs the low level when the probe is connected the voltage input is higher than the comparing voltage so the voltage comparator outputs the high level 2 4 6 IBP The IBP module can monitor the arterial pressure central venous pressure and pulmonary arterial pressure 23 Chapter 2 Principles Measurement principle Introduce a catheter of which the external end is connected to the pressure transducer into the blood vessel under test inject the physiological saline Since the liquid can be transferred by pressure the pressure inside the blood pressure is transferred by liquid to the pressure transducer and the dynamic waveform of the pressure inside the blood pressure is obtained in real time Thus the arterial pressure central venous pressure and pulmonary arterial pressure are obtained based on specific algorithm 247 CO CO measurement principle The thermal dilution method is widely used in the clinical CO monitoring Introduce a floating catheter into the pulmonary artery through the right atrium and inject the physiological saline into the right atrium through the catheter whose front end is connected to the temperature transducer When the cold liquid mixes with the blood there will be a change of temperature Thus when the blood mixed with the physiological sa
63. principle that the AG has the property of absorbing the infrared All gases that the AG module can measure have the property of absorbing the infrared and every gas has their own specific absorption peculiarity AG measurement procedure 1 Send the gas to be measured to a sampling chamber 2 Use an optical infrared filter select a specific band of infrared and transmit it through the gas 3 Measure the infrared that gets through the gas to obtain the gas concentration 24 Chapter 2 Principles For a given volume the higher the gas concentration is the more absorbed infrared is and the less the infrared that gets through the gas is For the measurement of multiple gases multiple infrared filters are required in the AG module The oxygen does not absorb the infrared within the above mentioned wave band Therefore the oxygen is measured based on its paramagnetism Inside the transducer of the module there are two crystal balls full of nitrogen They are suspended in the symmetrical magnetic field and designed to point to the strongest outgoing part of the magnetic field Outside the balls is the paramagnetic oxygen Therefore the balls are forced by the relatively stronger paramagnetic oxygen out of the magnetic field The moment of the force acting on the balls is proportional to the paramagnetic strength as well as to the concentration of the paramagnetic oxygen 25 Chapter 2 Principles FOR YOUR NOTES
64. rding to the different perfusions and transmittances of the tested object Led Drive Circuit This circuit supplies the LED with the drive current which can be regulated SPO2 Signal Process Network The pre amplifying circuit converts the photoelectric signal to the voltage signal and conducts the primary amplification The gain adjusting and amplifying circuit conducts the secondary signal amplification and adjusts the gain The biasing circuit adjusts the dynamic range of the signal and sends it to the A D conversion part A D The A D conversion part converts the analog signal to the digital signal and then sends it to CPU for further processing D A The D A conversion part converts the digital signal received from CPU to the analog signal and provides the control signal for the Led Drive Circuit and SPO2 Signal Process Network 13 Chapter 2 Principles CPU System implementing the logical control of all the circuits implementing the data processing for the SpO parameter Implementing the communication with the main board Power amp Signal isolate Circuit the external circuits to ensure the safety of human body Supplying power for all circuits implementing the isolation communication between the CPU System and the main board 2 2 5 NIBP Module 2 2 5 1 General This module provides the function of measuring the Non Invasive Blood Pressure NIBP parameter 2 2 5 2 Principle diagram
65. s average 10 5s Tall T Wave Rejection When tested in accordance with the ANSI AAMI EC13 Section 4 1 2 1 c the heart rate meter will reject all T waves with amplitudes less than 1 2 mV 100 ms QRS a T wave duration of 180ms and a Q T interval of 350 ms Pace pulse Pulse indicator Pace pulses meeting the following conditions are marked by the PACE indicator Amplitude 4 to 700 mV 3 5 lead 2 to 700 mV 12 lead Width 0 1 to 2 ms Rise time 10 to 100 us Pulse rejection When tested in accordance with the ANSI AAMI Sections 4 1 4 1 and 4 1 4 3 the heart rate meter rejects all pulses meeting the following conditions Amplitude 2 to 700 mV Width 0 1 to 2 ms Rise time 10 to 100 ps Min input slew rate 20 V s RTI ST segment measurement Measurement range 2 0 to 2 0 mV 0 8 0 8 mV 0 02 mV or 10 whichever is greater Precisi picks Beyond this range Undefined Update period 10s Mortara Software Package Lead naming style AHA EURO Lead fault The lead resistance is no greater than 51 kQ and it is in parallel with a 0 047 uF capacitor it will not cause a lead fault condition For 3 5 lead differential offsets lt 300 mV it will not cause a lead fault condition For 12 lead differential offsets lt 500 mV it will not cause a lead fault condition Sensitivity selection
66. s it indicates the airway is normal Otherwise proceed with step 2 55 Chapter 5 Test and Material List 2 Remove the sampling line and block the inlet of the water trap with your finger Check if the message CO2 SAMPLE LINE ABNORMAL is displayed and the current pump rate in the CO2 USER MAINTAIN menu drops below 5 ml min If yes it indicates there may be a problem with the connection between the sampling line and water trap or a leakage in the sampling line Otherwise proceed with step 3 3 Remove the water trap and block the two inlets in the receptacle for the water trap Check if the message CO2 SAMPLE LINE ABNORMAL is displayed and the current pump rate in the CO2 USER MAINTAIN menu drops below 5 ml min If yes it indicates there may be a problem with the connection between the water trap its receptacle or a leakage in the water trap Otherwise there may be a problem with the internal airway in the monitor The internal airway has two parts one part in the receptacle and the other part in the module Block the small tubes between the water trap receptacle and module with your fingers and check if the message CO2 SAMPLE LINE ABNORMAL is displayed and the current pump rate in the CO2 USER MAINTAIN menu drops below 5 ml min If yes it indicates there is a problem with the airway in the receptacle Replace the receptacle Otherwise replace the module 5 1 11 Recorder 1 Print the ECG waveform The recorder should pr
67. s resolution 1 min 5 min or 10 min Trend data Short trend 1 hour resolution 1 s or 5 s 70 alarm events and associated waveforms with user Alarm events selectable waveform length 8s 16 or 32 ARR events 80 ARR events and associated waveforms with 8s wavelength 800 NIBP groups including systolic pressures mean pressures NIBP measurements diastolic pressures and measurement time 3 7 Signal Output Specifications Meets the requirements of EC60601 1 for short circuit Standards protection and leakage current Output impedance 500 ECG analog output Diagnostic mode 0 05 to 100 Hz 812A module Bandwidth 3dB reference 0 05 to 150 Hz M08A module frequency 10Hz Monitor mode 0 5 to 40 Hz Surgery mode to 20 Hz Maximum propagation delay 25 ms In DIAGNOSTIC mode NOTCH is OFF Sensitivity 1 V mV 5 PACE rejection enhancement No pace rejection or enhancement IBP analog output Bandwidth 0 to 12 5 Hz 3 dB reference frequency 1 Hz Maximum propagation Delay 55 ms the filter function is disabled Sensitivity 1 100 mmHg 5 Nurse call output Driver Relay Electrical specifications lt 60W lt 2A lt 36VDC lt 25VAC 30 Chapter 3 Product Specifications Conducting resistance lt 10 Isolation voltage gt 1500 VAC Signal type Normally open or normally closed selectable Defibrillator
68. sing and displaying If necessary the results are sent to the recorder for printing The parameter monitoring functions are described respectively in the following sections 2 4 2 ECG RESP ECG The DPM5 patient monitor has the following ECG functions 1 Lead type 3 lead 5 lead 12 lead 2 Lead way 3 lead 1 channel 1 IH 5 lead 2 channels 1 Il aVL aVF V 21 Chapter 2 Principles 12 lead 8 channels Il HI aVR aVL aVF V1 V6 CAL 3 4 5 6 Floating input Right foot drive Lead off detection 2 2 channel ECG waveform amplification processing ECG signals of any two leads W The ECG circuit processes the ECG signals It consists of the following parts 1 Input circuit The input circuit protects the ECG input level and filters the ECG signals and external interference The ECG electrode is connected to the input circuit through the cable 2 Buffer amplifying circuit This circuit ensures extremely high input impedance and low output resistance for ECG 3 Right foot drive circuit The output midpoint of the buffer amplifying circuit is fed to the RL end of the 5 lead after the inverse amplification so as to ensure that the human body is in the equipotential state decrease the interference and increase the common mode rejection ratio of the circuit 4 Lead off detection The lead off causes changes in the output level of the buffer amplifying
69. st the 50 60HZ 50 60HZ filter will be turned In diagnostic mode the 50 60HZ filter will be turned off Input offset current lt 0 1uA except currents to drive leads Differential input impedance gt 5 Input signal range 8mV peak to peak value 31 Chapter 3 Product Specifications Accuracy of input signal reproduction Methods A and D were used to establish overall system error and frequency response according to EC11 Auxiliary current Leads off Active electrode lt 0 1 pA detection Reference electrode lt 1 pA Patient leakage current lt 10uA Recovery time after lt 55 defibrillation Calibration signal 1 mV peak to peak value precision 5 ESU protection Incision mode 300W Congelation mode 100W Restore time lt 10s The monitor complies with the requirements of ANSI AAMI EC13 Section 4 2 9 14 ESU noise control The monitor uses the ECG leads meeting the requirements of AAMI based on the ECG baseline the peak noise lt 2mV The monitor complies with the test method in EC13 Section 5 2 9 14 HR Neonate 15 to 350 bpm Measurement range Pediatric 15 to 350 bpm Adult 15 to 300 bpm Resolution 1 bpm Precision 1 bpm or 195 whichever is greater Trigger threshold level 200 uV lead IT Trigger indication There will be an audible beep on every beat captured Heart Rate Averagin
70. synchronization pulse Maximum time delay 35 ms R wave peak to leading edge of the pulse Amplitude 3 5 V min at 3 mA sourcing 0 8 V max at 1 mA sinking Pulse width 100 ms 10 Rising and falling time lt 3 ms VGA Connector type 15 PIN D sub socket Signal RGB 0 7 Vp p 75Q Horizontal vertical synchronization TTL level 3 8 ECG Specifications Mindray DS Software Package Lead naming style AHA EURO Lead fault The lead resistance is no greater than 51 kQ and it is in parallel with a 0 047 uF capacitor it will not cause a lead fault condition For 3 5 lead differential offsets lt lead fault condition 300 mV it will not cause a For 12 lead differential offsets lt 500 mV it will not cause a lead fault condition Sensitivity selection 1 25 mm mV x0 125 2 5 mm mV 0 25 5 mm mV 50 5 10 mm mV x1 20 mm mV x2 and AUTO Sweep speed 12 5 mm s 25 mm s 50 mm s Bandwidth 3 dB Diagnostic mode 0 05 to 100 Hz 812A module 0 05 to 150 Hz M08A module The notch filter is turned off Monitor mode 0 5 to 40 Hz Surgery mode 1 to 20 Hz Diagnostic mode 290 dB EM Monitor mode 2105 dB Common mode rejection Surgery mode 2105 dB 50 60Hz Notch Filtering The monitor provides software filt industrial frequency In monitor and surgery modes the on automatically ering again
71. t Measurement range 2 0 to 2 0 mV Precision 0 8 to 0 8 mV 0 02 mV or 10 whichever is greater Beyond this range Undefined Update period Updated every 16 valid beats 3 9 RESP Specifications Measurement technique Thoracic impedance Lead Optional lead I and lead II default lead II Respiration excitation waveform lt 300 pA sinusoid 62 8 kHz 10 Respiration impedance test range 0 5030 Baseline impedance range 200 to 2500 using an ECG cable with 1kQ resistance Differential input impedance gt 2 5 Linear Signal Range 3 Q p p minimum Bandwidth 0 2 to 2 Hz 3 dB Sweep speed 6 25 mm s 12 5 mm s 25 mm s RR Adult 0 to 120 BrPM Measurement range D Pediatric neonate 010 150 BrPM Resolution BrPM E 7 to 150 BrPM 2 BrPM or 295 whichever is greater Precision 0 to 6 BrPM Undefined Apnea alarm delay 10 to 40 5 3 10 5 Specifications Mindray DS SpO Module All SpO sensors specified in the section MindrayDS SpO2 Accessories meets the following specifications when used with Mindray DS SpO module SpO2 Measurement range 0 to 100 Resolution 1 70 to 100 2 adult pediatric non motion conditions Precision 70 to 100 3 neonate non motion conditions 0 to 69 Undefined Refreshing rate 15 36 Chapt
72. t be vented to atmospheric pressure before the zero procedure The transducer should be placed at the same height level with the heart approximately mid axially line W Zero procedure should be performed before starting the monitoring and at least once a day after each disconnect and connect of the cable Normal Saline Vith Heparin Transducer 3 Way Distal End Stopcok To Patient hamber PM6000 18 MODULE N Pressure Transducer Interface Cable Figure 5 3 IBP Zero 58 Chapter 5 Test and Material List 5 3 2 IBP Calibration Press CAL button on the IBP module to call up the IBP PRESSURE CALIBRATE menu as shown below IBP PRESSURE CALIBRATE CH1 CAL VALUE 200 CALIBRATE 200 200 08 10 2001 00 07 00 2 CAL VALUE 200 CALIBRATE 200 144 08 10 2001 00 00 00 Back to the upper menu Figure 5 4 IBP Calibration Menu Calibrate the transducer Turn the knob to select the item CH1 CAL VALUE press and turn the knob to select the pressure value to be calibrated for channel 1 Then turn the knob to select the item CALIBRATE to start calibrating channel 1 Turn the knob to select the item CH2 CAL VALUE press and turn the knob to select the pressure value to be calibrated for channel 2 Then turn the knob to select the item CALIBRATE to start calibrating channel 2 The pressure calibration of DPM5 Pressure Transducer 3 Way Stopeock
73. tion 1 Select MAINTAIN gt gt in SYSTEM MENU enter USER KEY then select CONFIRM button Then selecting GAS CALIBRATE gt gt in USER MAINTAIN menu opens the GAS CALIBRATE menu 2 Select VERIFY ACCURACY to check the airway and make sure that there are no occlusions or leaks Vent the tubing to the air and check if the CUR RATE and SET RATE are approximately the same If the deviation is great it indicates that there is an occlusion in the tubing Check the tubing for an occlusion The CUR RATE shall fall rapidly and the system prompt that the tubing is blocked Otherwise it indicates that there are leakages in the tubing Check the tubing for leakages 61 Chapter 5 Test and Material List 3 Connect the gas bottle reservoir bag and the tubing using a T shape connector as shown in the figure below Check the airway and make sure there are no leaks 4 Open the gas valve and vent a certain standard gas or mixture gas into the tubing Gas valve AG module Reservoir bag Gas bottle 5 Inthe CALIBRATE menu the concentration and flowrate of each measured gas are displayed Ifthe difference between the measured gas concentration and the actual one is very small a calibration is not needed Ifthe difference is great you should perform a calibration Select START CAL gt gt to enter the calibrate menu 6 Enter the vented gas concentration If you use only one gas for calibration set other gases concentrati
74. trademark or a registered trademark of Shenzhen Mindray solely for editorial purposes and are the property of their respective owners Content of this manual is subject to changes without prior notice PROPERTY OF Mindray DS USA Inc ALL RIGHTS RESERVED Responsibility on the manufacturer party All information contained in this manual is believed to be correct Shenzhen Mindray Bio Medical Electronics Co Ltd shall not be liable for errors contained herein nor for incidental or consequential damages in c onnection with the furnishing or use of this manual The manufacturer will not be liable for the effects on safety reliability and performance of this product if any installation expansion change modification and repair of this equipment are conducted by Mindray qualified personnel applied electrical appliance does not comply with relevant National Standards the monitor is not operated under strict observance of this manual Service Manual V 5 0 A Warning A For continued safe use of this equipment it is necessary that the listed instructions are followed However instructions listed in this manual in no way supersede established medical practices concerning patient care Do not rely only on audible alarm system to monitor patient When monitoring adjusting the volume to very low or completely muting the sound may result in the disaster to the patient The most reliable way of monitoring the patient
75. ves of the finger tips based on specific algorithm and clinical data The probe is the measurement transducer It has two inbuilt LEDs and an inbuilt light receiver The two LEDs include one red light diode and one infrared diode which emit light in turns When the capillaries in the finger tip are iteratively congested with blood pumped by the heart the light emitted by the LEDs after absorbed by the capillaries and tissue casts on the light receiver which can sense in the form of electric signal the light strength changing with the pulsated blood The DC AC ratio of the two photoelectric signals corresponds to the content of the oxygen in the blood Therefore the correct pulse oxygen saturation can be obtained with specific algorithm Moreover the pulse rate can be obtained according to the pulse waveform The circuit of the module is involved in four parts probe signal processing unit LED driven sequencing control part and the MCU 2 4 5 TEMP Temperature measurement principle 1 The transducer converts the body temperature to the electric signal 2 The amplifier amplifies the electric signal 3 The CPU processes the data The circuit is a proportional amplifier consisting of operation amplifiers When the temperature reaches the heat sensitive probe the heat sensitive probe generates the voltage signal which is sent to the A D converter after being amplified The probe detecting circuit is a voltage com
76. which will be displayed by using the man machine interface to the main control board 2 1 2 Main Control Part In the DPM5 patient monitor the main control part refers to the main control part of the main control board It drives the man machine interface manages the parameter measurement and provides users with other special functions such as storage recall of waveforms and data See Figure 2 1 2 1 3 Man Machine Interface The man machine interface of the DPM5 patient monitor includes the TFT display recorder speaker indicator buttons and control knob The TFT display is the main output interface It with the high resolution provides users with abundant real time and history data and waveforms as well as various information and alarm information The recorder is a subsidiary of the display which is used for the user to print data The speaker provides the auditory alarm function The indicator provides additional information about the power supply batteries alarms and so on The buttons and control knob are the input interface which are used for the user to input the information and commands to the patient monitor 2 1 4 Power Supply The power supply part is an important part of the patient monitor It includes the main power PCB backlight board batteries and fan The main power PCB converts the external AC current respectively to the 5V DC and 12V DC current which are supplied for the whole system For the TFT d
77. with a neonatal watertrap and a 2 5m long neonatal sampling line 3 s 100 ml min 3 5 s 70 ml min When measured with an adult watertrap and a 2 5m long adult sampling line 5 s 2 100 ml min 6 5 s 70 ml min Apnea alarm delay AwRR 10 to 40s Conditions for measurements in typical precision The measurement is started after the preheating mode of the module Ambient pressure 750 mmHg to 760 mmHg room temperature 22 to 28 C The gas under test is dry and the balance gas is N2 The deflation rate is 100 ml min the respiration rate is no greater than 50 BrPM with a fluctuation less than 3 BrPM and the inhale interval exhale interval is 1 2 When the working temperature is from 15 to 25 degree or from 50 to 55 degree or when the breath rate is greater than 50Brpm the measurement precision should meet the requirements of 15021647 4mmHg 0 to 40mmHg or 12 of the reading 41 to 99 mmHg 41 Chapter 3 Product Specifications Oridion CO Specifications CO2 measurement range 0 to 99mmHg m 0 to 38 mmHg 2 mmHg Precision f 39 to 99 mmHg 5 0 08 x reading 38 mmHg Drift meet the requirement of accurancy in 6 hours Waveform 0 1 mmHg Resolution Value 1 mmHg Sample flow rate 9025 abu Initialization time 30 s typical Response time 2 9 s typical Delay time 2 7 s typical AwRR measurement range 0 to 150 BrPM 0 to 70 BrP
78. wo TI temperature values 0 C and 2 C Then the screen should display 0 0 1 C and 2 0 0 1 CO measurement Set the CO CONST to the default values 0 542 and OC set the injectate switch to OFF and then press START Then the simulator will output 0 C 2 5L M 0 C 5L M within 2s The CO values should be 2 5 0 25L M and 5 0 5L M 5 1 9 CO 1 2 Test fixture CO steel bottle containing 1096 CO Test procedure D Sidestream CO measurement Set the calculation compensation of DPM5 to COMMON Plug the water trap to the water trap socket connect the sampling tube with the CO steel bottle and open close the valve of the CO steel bottle based on the interval of 3s The value should be the calibration gas pressure value 76x596mmHg When the valve is opened permanently the patient monitor prompts APNEA ALARM Unplug the water trap The patient monitor prompts CO water trap OFF Plug the water trap again The prompting message disappears When the measured value exceeds the high limit of the patient monitor prompts CO too high on the main screen When the measured value is lower than the low limit the patient monitor prompts CO too low 5 1 10 Water trap 1 Connect the airway and block the inlet of the sampling line with your finger Check if the message CO2 SAMPLE LINE ABNORMAL is displayed and the current pump rate in the CO2 USER MAINTAIN menu drops below 5 ml min If ye
79. y power for the subsequent circuits 5V DC DC This part converts the DC voltage to the stable 5V DC voltage and supplies it for the external boards 17 Chapter 2 Principles 12V DC DC This part converts the DC voltage to the stable 12V DC voltage and supplies it for the external boards Power Switch Circuit This circuit controls the status of the 5V DC DC part and the 12V DC DC part thus to control the switch of the patient monitor Voltage Detect Circuit This circuit detects the output voltages of the circuits converts the analog signal to the digital signal and sends the digital signal to the main board for processing 2 3Software Description 2 3 1 General Physiological signal Parameter measurement module Ethernet input User input by button gt command output Rrocessing ontrol Figure 2 12 System function As shown in Figure 2 12 in the red frame is the software system on the left to the red frame are the inputs of the software system and on the right to the red frame are the outputs The parameter measurement module exchanges data with the software through the serial port while the user interacts with the system through the button panel Among the output devices the recorder and alarm device receive data through the serial ports the analog output component is an MBUS component and the LCD and network controller are controlled directly by CPU 18 Chapter 2 Principles

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