MANUAL - Robert Ströhmann
Contents
1. lt Show both faces gt lt Zoom out gt Biel E Back to edit win Foam dimensions mm Height fi 50 0 ac width 200 0 K Safety margin 10 0 mm Zur Delay between sides 0 000 Sec IT Show both faces Picture 14 To enter the foam block dimensions in mm Set a safety margin within the foam block to avoid cutting within the possibly frayed edges 90 turning of the foam block Foam movement Block movement Block movement into one edge under consideration of the safety margin Cuts the active block only Cuts all blocks Move the slider to set the cutting speed Sets a short delay between cutting the separate edges This may be necessary to avoid round edges when moving fast Shows both sides of the block Magnifies the display 16 C 7 Digitiser setup 7 1 Digitizer Setup Digitizer setup Uther parameters E mulation Numonics ASCII e Mode Point sl Resolution 10 lines per mm sl hd Beep when adding a point ASCII options Ww CA fw LF T Seperator i lag button x Cancel UK shart tracing the contour Picture 15 Communication Use Button 7 to set the origin Use Button 2 to set the top point Poort Baudrate 9600 e Data bits 7 Fart even Stop bits 1 x y Open Fort i lt Communication gt lt Port gt Set the COM Port which the digitiser is connected to normally COM 1 or CO2. lt Step width gt Enters the step width in mm 0 1 1 5 10 50 and 100 mm lt Speed gt Controls the rate of the motors Make sure that this is not set too high as the wire might otherwise lag behind the desired course or even break lt Side A B direction buttons gt With the up down and closer further buttons you are able to move each stepper motor separately To stop the motors immediately click onto the button in the middle of the direction buttons This is like an emergency button It may be necessary when you set a large stepwidth or the motors are driving too fast lt Side A B gt In the bottom of this window you can see four control fields indicate the lt Set as 0 coordinates The accuracy is 1 10 mm gt Set the coordinates in the software to zero values This may be necessary when the motors have been moved by hand or the software restarted while the motors where not in their park position 10 C 4 2 Description of command buttons in patient database window lt Load block data gt Loads the data ofthe marked database entry Alternative you can do this by a double click to the patient n database list Now you see that the Loaded dataset window shows some further information The example patient consists of four different blocks In the documentation the TEST block is used to describe the different ways to edit block in a field lt Import file gt Imports block data from different
3. treatment planning systems like ISIS PINNACLE BRAINLAB HELAX MULTIDATA DOSIGRAY CADPLAN HEK ISIS Version 3d FOCUS CMS Refer to pic 6 Please select file to import El x Suchen in E Adac ParScientific ce Block Par cie Dateiname Eisck Fars cie Dateityp Pinnacle parscie e Abbrechen Brainlab al Cadplan 417 Dosigray TS dex Focus dat HEF 001 Ir Helas TS ail Los Fac Isis Sd al Multidata Picture 6 C 4 2 Description of command buttons lt New Patient gt lt Beam info gt Patient info Name ff Date ofbith Plandate 18 01 2001 Patient ID SE ne sont Picture 7 Here you can create a new patient with all relevant data The plan date is set automatically by the software to the current date Refer to pic 7 e Note You can use the lt TAB gt key to enter each field Beam info Description Anterior Distances Radiation field Sourse Surface 1000 0 mm Left mn mm Saurce Tray eooo mm Top Dn mm width 200 0 mm Height 200 0 mm Picture 8 lt Description gt The description of the field is editable lt Distances gt lt Source Surface gt means the distance of the beam source to patient or film surface lt Source Tray gt distance of block tray holder bottom edge to beam source The default values are taken from the lt Preferences gt settings lt Radiation field gt Sp
4. value between 130 180 mA will be sufficient in most cases Heating adjustment To adjust the current strenght insert the enclosed screw driver into the small hole alignment potentiometer then gentle move to the right to increase the current To decrease turn to the left B Installation B 1 Package contents EASY CUT device Parallel port cable Power cord CD ROM with EASY CUT software for WIN95 98 ME User manual 5 spare wires screw driver B 2 Hardware recommendations Personal Computer optional For the proper use of the EASY CUT system we recommend a PC with the following features at least a Pentium Class Processor min 32 MB RAM additional parallel port interface to connect EASY CUT and a printer at the same time LAN Adapter to connect the PC to a network This makes it much easier to import data files from treatment planning system e min 17 Monitor Digitizer optional EASY CUT software only provides NUMONICS ACCUGRID Digitizers It will be connected to serial port COM 1 or COM 2 to your PC For further instructions refer to the manual of the digitzer Plotter optional The software provides any plotter that corresponds to the HPGL language We recommend Roland DXY 1150A connecting cable to parallel port of PC main power switch power connector f a H with main fuse Picture 2 B 3 Hardware installation Unpack the EASY CUT device from carton and search a plac
5. EASY CUT Block cutting system MANUAL Robert Str hmann Telefon 49 0 4361 494160 Medizinische Physik Telefax 49 0 4361 494161 Schuhstrasse 4 E mail robert stroehmann t online de D 23758 Oldenburg i H web www stroehmann medphysik de Content I EE A Introduction u enge 3 B Hardware B 1 FAC AG SCO NG IAN ee ee 4 B 2 FOC eg Eelere een 4 B 3 INS a al ON VE 5 B 4 Calibration process oneenonnennnnenonnerrnrerrnrsrrrrrrrrrrrrerrn 5 C Software C 1 DE CNP ON ee 6 C 2 Document CONVENTIONS cee cececececeeeeeeeecececeeeaeaeeeeceeees 6 C 3 INStANATION 0 eee cece ec eeececececeeeeeeeececeeeaeanaeeeeeestaeanetestaees 6 CA Patient Database 0 4 1 Menubar ann ann an annnn 8 med Ko ko he ue 9 Manual contra 10 C 4 2 Command buttons SPORE ee 11 Patient Info nee 12 EECHER eebe 12 0 5 Edit the shadow nennen nen 13 Block Info 14 C 5 1 Create new 0 e ter ee ee ea 15 0 5 2 Edit ablock 15 C 6 CUNG Bue nee 16 C 7 Digitizer C 7 1 Setup 17 0 1 2 lee VIA DIGWZEr E 17 D Technical Information D 1 Mechanics naaanannnnnnnnnnnnnnnnnnnnnnnrnnnnnrrrnnnnnrrrnnnnrrrrnnnernne 18 D 2 LIMIS 22 0 cccccccceccececcececccccacecccccecceacececceausueaesneaeeeaeeaeanes 18 D 3 Maintenance Instructions ccceccecceccececceceeueeceaees 18 D 4 DNN e 19 E FAQ WEE 19 A Introduction The block cutting system EASY CUT was developed to cut precise block contours for rad
6. M 2 Do not make any changes to the other values like Baudrate Data bits Parity etc unless your digitiser has been set differently Other parameters are functional default values and need no changes C 7 2 Digitzier input 1 Press button 1 of digitizer cursor A short beep sound will confirm that the digitizer is ready for the input 2 Move cursor to the top point of the x ray image and press button 2 of digitizer cursor This step is necessary for the orientation 3 Now the digitizer is calibrated for tracing contours Press the lt OK start tracing the contour gt button The programm changes to the edit the shadow window You can follow the tracing procedure on the screen EE D Technical Information Dimensions Width 395 mm Height 565 mm Length 610 mm app 35 kg Power supply 110 230 Volt 50 60 Hz 80 VA E E D 1 Mechanic of EASY CUT CNC milled aluminium parts Tempered filed precision steel shafts 12mm diameter PTFE plated sinter bonze precision slide bearing bolts Infeed spindles on bearings with 2 mm pich pich accuracy 100 um 100 mm Free of play plasic infeed nuts Cog belt to synchronize the two infeed spindles Stepper motor drive with 16 Nem torque and 400 half steps per revolution Theoretical resolution 2 400 mm or 1 1200 mm 0 005 mm Typical accuracy lt 0 05 mm D 2 Mechanical Limits From approx 4000 steps per second the stepper motor torque drops Such high step frequen
7. ROM drive and start the Setup exe than follow the instructions of the setup program When the autostart function is activated setup will start automatic By default the Easy Cut program is installed in the directory C PROGRAM FILES EASYCUT32 INFO To use the software in a comfortable way change the graphics resolution to at least 800 x 600 pixel The first time you start the software the demonstration patient HANNES BREUER is situated in the database If there is no data use the menu command File and than lt Create new index gt a splash screen will appear where you are asked to save a new index file easycut idx After that press the lt Save gt button Then use the command Entries and lt Add to index gt now the demo data appears in the database C 4 Patient Database El Easycut Patient Database OK 20 07 1999 Hannes Breuer Picture 3 After starting the Easy Cut program the main window Patient database appears The patient Hannes Breuer is for demonstration purposes only In the lt Loaded dataset gt you can see four entries of example fields Anterior Posterior Test Mirror image of Test In the further documentation we are using the TEST field C 4 1 Description of commande in the menu bar Program lt About gt lt Exit gt File lt Open index file gt lt Create new index file gt lt Check validity gt lt Correct errors gt lt Import gt En
8. cies never occur when cutting styrodur At a certain critical speed the relatively long drive spindles may start to resonate Make sure when positioning the wire that a critical speed is not reached as otherwise it could lead to step loss It is best to drive the EASY CUT with a speed range of 8 in the software The maximum speed is around 3000 steps per second wich corrosponds to approx 15 mm per second or 900 mm per minute In practice the cutting speed for styrodur is approx 150 mm per minute D 3 Maintainance instructions Lubricate the spindels in a period of half a year Use a resin free and non acidic sewing machine oil 18 D Technical Information D 4 Drawings I Lip EL Tee er zz ln i FEH TERE SHE SHE operator side ERTE Hu TEE pat TEE pee i ji i TE Zero polnt _ TE reference polni bi E gt Q PO ele gt N SE EE Ymo hovel range zero point Y RS Tre DROE Hatt HUE TEHE TEHE A guide plate lui DE Hit Id I i d il wl I bil EHHI I jil i pii l Base I iit i il AL Per nt X Zero pent X a nax havel range pl ea SZ RE A j Picture 16 FAQ Frequently asked questions While cut procedure Easy Cut lost steps is it due to the software No after a long period of using the device the vibrations can unlock the parallel port cable when it is not properly plugged in this case data stream is not grante
9. d Ensure you that the screws at the parallel port connector are fixed On the other hand t could be a mechanical problem due to lubrication of spindels Refer to maintainance instructions in Chapter D 3 We have the problem that blocks have round edges Reduce cutting speed or arrange a delay of 0 5 sec or more in the cutting the shape windows We are using a switch box because we have attached a plotter and a printer to the computer Why does it work properly It works properly but before you switch on you computer you must consider whether you want plot or print This is a handshake problem of the computer hardware To avoid this we recommend that you install a third parallel port interface into you computer We are using ISIS 3d TPS We want to create a aperture But the create aperture button is not functional ISIS 3d generates automatically an isocenter cross n the middle of the block or field Go to Edit the shadow window delete the cross than the software can arrange an apperture We are using a digitizer but there is no chance to create a contour Make sure that you switch on your digitizer before the computer 19
10. e close to your personal computer Connect your EASY CUT with the power cord on the backside of the device 3 Make sure that the Computer and the Easy Cut device is switched off before you connect the parallel port cable with your PC and the EASY CUT device 4 Make sure that the cable is properly attached on both sides NO B 4 Calibration process IMPORTANT On first operation with Easy Cut or when you want to use styrofoam material with different temperature value start cutting with the highest current I max value to avoid damages to the wire Otherwise the wire will tear up To prepare the EASY CUT for cutting blocks the first time you must calibrate the heating amps of the wire With the screwdriver from the accessory kit turn the potentiometer to its highest position The potentiometer is situated on the right side of the current display Heating Adjustment Then start a cutting process as described below and keep an eye on the area around the wire While cutting operation gently turn the potentiometer back until you have a precise contour Repeat this procedure each time you have changed the wire or styrofoam material C Software C 1 Software Description The Easy Cut software provides the user with a versatile easy to use interface for the automated control of the East Cut Block Cutter The data import available for all the main stream treatment planning systems ensures continuity throughout the whole block mak
11. ecifies the radiation field dimensions lt Left gt X coordinate of the upper left corner of the field lt Top gt Y coordinate of the upper left corner of the field lt Width gt specification of field width lt Height gt specification of field height Edit blocks New beam Mirror beam Skips to the Edit the shadow window closer specified in chapter C 2 Creates a new field in the existing patient dataset Creates a mirrored block automatically To arrange a mirror block mark the corresponding block in the lt Loaded data set gt field and click the lt Mirror beam gt button Then a new block with a prefixed Mirror of appears ie C 5 Edit the shadow A double click to the left mouse button on the example patient in the lt Loaded data set gt field will list the different block contours Now with a double click on TEST the program changes to the Edit the shadow window Ref to Pic 9 Edit the shadow Biel ES Back to patient DB Picture 9 lt Back to patient DB gt Returns to the Patient database window lt Zoom gt lt Mouse position gt Lem lt Available blocks gt Magnifies the image in 5 steps by pressing and holding the mouse cursor on the scroll bar You can also use the lt gt and lt gt keys to zoom in and out Shows the position of the mouse with an accuracy of 1 10 mm This is helpful when you arrange or edit blocks by mo
12. for Dosigray or Isis 3d The distance between radiation field and the shielding lt Wirecutter Port gt Specifies the parallel port number where the EASY CUT device is connected to the computer When you have an additional parallel port adapter you can also change to LPT 2 or LPT 3 lt HPGL export gt These values determines the origin of the tray holder Because of different types of tray holders values must be entered once lt Scale gt Setting for resolution of the plotter 40 pts mm is the default value lt Plotter gt Specifies the plotter that is connected to the computer C 4 1 Description of command in the menu bar Manual Control Here you can control the motors manually This is necessary when an error occurs while EASY CUT is cutting a block After activation of these command the following window will appear E Manual control IW Link the two sides Gei Speed doe Shep idth 1 hi mm LA S de B S de A UF UF E E closer de Kl further closer de KM further hb hal down down SE l side A Positions Up Further in mm Set as Move to park position side B 0 00 om ide a 0 00 0 00 Picture 5 lt Move to park position gt Moves the stepper motors automatically into their mechanical zero position lt Link the two sides gt If this option is checked the motors will drive in parallel This is necessary to ensure that you do not tear the wire by moving only one s de
13. gt lt plandate gt lt comments gt and lt filename gt C 4 1 Description of commande in the menu bar B Preferences HPGL export Beam centre is at sch al mm vfi al mm Scale Fts mm 40 Flotter Default distances Source Surbace fi UUU mm Default import format Import options ee Dates swap day and month j 500 Mirror data e Mirror function Ge Left lt gt Right f Up lt gt Down Colours in edit wiridow Aperture margin fio mm Wireculer Fort Ba x Cancel Background Gridlines Field dimensions Active shadow Inactive shadows Picture 4 lt Default import format gt Here you can arrange your TPS by default Import options lt Dates gt swap day and month some TPS are exporting the Plandates in the English date convention so you can fix this problem lt Mirror data gt On some TPS the data is exported mirrored Marking the checkbox will arrange the correct orientation Mirror function With this option field you can manage the mirror direction Colors in edit window This is only for the color appearance of the Edit the shadow window You can make changes to your satisfaction lt Default distances gt Here you can manage the distances of Source Surface and Source Tray They are only need to be changed one time because of using the same Accelerator Type lt Aperture margin gt Only necessary
14. iation therapy in Styrofoam blocks The major intention 1s to avoid the manual block cutting that was clinical routine in former times EASY CUT helps to produce blocks automatically Features amp Benefits space saving construction simple operation uncomplicated software extensive maintenance free laser alignment system for precise block positioning very slight fume while cutting styrofoam material g et currency LCD display power LED e x currency Bdjustment PIC emergency off switch laser for blo Picture 1 Description Emergency off switch Ifany unpredictably events happens than push these button The device is now completely disconnected from the power source After you have solved the problem first rotate knob 90 to the right side and pull Laser alignment To arrange block position in the way that you mount the styrofoam block into the clamb Slightly move the block until the laser beam points to the upper left edge of the block In this way you have the correct adjustment to cut precise blocks Otherwise the block is adjusted wrong the divergence is not correct Power LED Indicates functional status of the EASY CUT device Current LCD Display This 3 digit LCD display informs you about the actual current of the cutting wire It is essential for an accurate and precise cutting that you arrange the current in that way that you have a very thin cut channel an no rounded edges A
15. ing process with high accuracy and guaranteed repeatability In the clinical enviroment experience has shown that there are several ways of creating block data from the tracing of contours using a film on a digitiser to the automated production and transfer straight from a treatment planning system The Easy Cut sotware supports all these possibilites On the developement of the software consideration has also been given to the mould room technician with helpful tools such as the printing out of the block plan to a standard printer or plotter for the purpose of mounting the blocks on an accessory tray C 2 Document Conventions This guide uses the following conventions to help you to locate and identify the information that you need Each relevant command within this document is highlighted Program This is understandable as a topic where other sub commands will follow and is also understandable as a topic from the menu bar or a title of a control window lt Open index file gt This represents a sub command or a sub command button within menu bar or program window Values or parameters which are editable by the user lt Mouse position gt This text indicates an information status or description from a formular field that is not editable by the user lt Source Surface gt This is the convention to enter a value by keyboard input INFO Tip or useful information C 3 Software installation Insert CD into your CD
16. tries lt Add to index gt lt Remove from index gt lt Enter new patient gt lt Save Entry gt Options lt Preferences gt lt Descending Sort order gt INFO Gives a short overview of the software version number Necessary for update service Will close the EASY CUT Program To open another index file necessary if the computer is connected to a network The index file has the character of a database Creates a new index file This may be necessary if different users will operate the EASY CUT Program Checks all entries for missing files and marks these in the first column of the table lt OK gt indicates a good status Removes invalid entries found by the previous menu point With this command you can import block data from different planning system For a further description see lt command buttons gt This command enables you to add an existing patient to the index file Deletes the marked entry from the database Creates a new patient file in the database Saves the changes made to the current patient Here you can manage the colour appearance at your choice also you can set the default values refer to pic 4 The data in the database will sort by descending order A hook marks the descending sort order status To sort data in the table when you left click into the headline of the table for example lt patient gt the table will change sort by patient name You can also sort by lt date
17. use By pressing this button you will be asked for the new block data The program creates a new block automatically Now the mouse cursor changes to a small circle You can add new points to the contour by pressing the left mouse button Refer to pic 10 11 Closes the contour The program draws a line to the origin to close the block Refer to chapter C 4 Refer to chapter C 3 Prints out the contours You can use the printout for positioning the blocks on the tray Generates a HP GL code for the connected plotter 14 C 5 Edit the shadow C 5 1 Create a new block LIT pi tit ta pi Tt At BEER E Picture 10 III PN Pi img pty LU pi iit A ERE AR Picture 11 C 5 2 Edit a block You have the option to change existing contours subsequently Hold down the lt Shift gt key and move the mouse cursor to an edge of the contour then press and hold down the left mouse key Now a small circle with arrowed cross hair appears You can move the vectors by moving the mouse By pressing the right mouse button next to a contour you can add a point into the middle of the vector Delete this point Insert a point here Delete this point Picture 13 Picture 12 C 6 Cutting the shape i Cutting the shape EEE Get lt Foam dimensions gt lt Safety margin gt gt O NS Ka lt Cut Block gt lt Cut Plan gt lt Speed gt lt Delay between sides gt
18. use input Same window as beam info refer to description of Beam Info above Here you can verify the basic data You also have a chance to correct errors Regarding wrong Name date of birth etc This status field is a list of the available blocks in the actual field The example consist of four Blocks When you left click on the corresponding block the display will highlight the marked block contour In this case the red marked T Opens the block info window that will show you further information Refer to next page 13 C 5 Edit the shadow Block info x Description Ir FF Divergent Data source Mouse 7 Delete block u SA b k J Mouse input be D 4 Close new contour Ki I KW Cd 4 Digitizer input a R Go to cutting window amp HPGL lt Description gt Editable field to change the description of the block lt Divergent gt To arrange that block will be cut divergent lt Data source gt Indicates where the block has it s creation source There are three different types e Mouse e Digitizer e Named TPS Using this command button creates an aperture under consideration of the weight of the blocks You will be asked if you want to limit the weight of the blocks Later you will be asked if you want to remove the old aperture Confirm in both cases Removes the marked block from the field arrangement Enables you to create a new block with the mo
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