Siemens LITHOSTAR Multiline Guide

LITHOSTAR Multiline
Register English
Print No.: RXL2-120.071.01.04.02 Doc. Gen. Date: 05.97
Replaces: RXL2-120.071.01.03.02
© Siemens AG 1994
The reproduction, transmission or
use of this document or its contents
is not permitted without express
written authority. Offenders will be
liable for damages. All rights,
including rights created by patent
grant or registration of a utility
model _or_design,_are_reserved.
SP
Instructions for isocenter adjustment
Adjustment instructions

LITHOSTAR Multiline Register RXL2-120.071.01 Page 2 of 4 Siemens AG
Rev. 04 05.97 TD SP 1 Medical Engineering
0 - 2 Revision
Chapter Page Revision
01-404
11-204
2 1 - 10 01
31-201

Contents 0 - 3
Siemens AG Register RXL2-120.071.01 Page 3 of 4 LITHOSTAR Multiline
Medical Engineering Rev. 04 05.97 TD SP 1
1 _______General_______________________________________________________1 - 1
Tools and auxiliary devices required . . . . . . . . . . . . . . . . . . . . . . . . . .1 - 1
2 _______Centering the X-ray tube / Image intensifier_________________________2 - 1
Parallelism check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
Determining the electrical I. I. center . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2
Adjusting the 23 cm I.I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
Parallel adjustment in the patient longitudinal direction . . . . . . . . . . . . . . . 2 - 3
Parallel adjustment in the patient transverse direction . . . . . . . . . . . . . . . 2 - 3
Adjusting the 33 cm I.I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 4
Removing the I.I. mounting covers . . . . . . . . . . . . . . . . . . . . . . . . .2 - 4
Parallel adjustment in the patient longitudinal direction . . . . . . . . . . . . . . . 2 - 4
Parallel adjustment in the patient transverse direction . . . . . . . . . . . . . . . 2 - 4
Adjustment of the isocenter, +30°/-10° position . . . . . . . . . . . . . . . . . . . . . 2 - 5
Adjustment of the isocenter, +30° position . . . . . . . . . . . . . . . . . . . . . 2 - 5
Adjustment of the isocenter, -10° position. . . . . . . . . . . . . . . . . . . . . . 2 - 7
Cross hairs adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 8
Image orientation check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 8
Final steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 9
3 _______Changes as compared to previous versions ________________________3 - 1
Page

0 - 4 Contents
LITHOSTAR Multiline Register RXL2-120.071.01 Page 4 of 4 Siemens AG
Rev. 04 05.97 TD SP 1 Medical Engineering
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1 - 1
Siemens AG Register RXL2-120.071.01 Page 1 of 2 LITHOSTAR Multiline
Medical Engineering Rev. 04 05.97 TD SP 1
Tools and auxiliary devices required 1
•Standardinstallationtools
•Waterlevel
•M6 washer(holediameter6-6.5 mm)
These instructions describe all centering procedures. Perform only the
adjustments necessary for the system you are servicing.
Shock wave head replacementTube - Collimator replacement Camera replacement
Image orientation check
Final steps
Adjustment of Isocenter
- 10° position
Adjustment of Isocenter
30° position
Centering the tube - I.I.
Adjustment of Isocenter
- 10° position
Adjustment of Isocenter
30° position
I.I. replacement
Determining
the electrical I.I. center
Centering the tube - I.I.
Adjustment of Isocenter
30° position
Adjustment of Isocenter
- 10° position
Cross hairs adjustment
Parallelism check Parallelism check
NOTICE
General 1

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Rev. 04 05.97 TD SP 1 Medical Engineering
1 - 2 General
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2 - 1
Siemens AG Register RXL2-120.071.01 Page 1 of 10 LITHOSTAR Multiline
Medical Engineering Rev. 01 05.97 TD SP 1
Parallelism check 2
•Removethecoversoftheshock wavehead.
•Mounttheshort tableextensionto the leftside ofthetable.
•MovetheC-arminto the0°position.
•RemovetheI.I. collisionprotection.
- Insertthe jumper atX18ormakea connectionusinga wire.
When replacing the X-ray tube:
•Priorto mounting thecollimator to the machinedflangesurface (3/Fig.1) ,placea
protractorspiritlevelon theflangeand check whetheritis level.
•Ifnecessary,adjustthe position.
Adjusting the X-ray tube:
When replacing the I.I.:
•Checkthatthe image intensifieris level.
Placea waterlevelonthemachined surface(4/Fig.1)and adjust asfollows:
Adjusting the I.I. parallelism:
Fig. 1
- Patient longitudinal direction4x screws (1/Fig. 1)
- Patienttransversedirection Mounting ring screws (2/Fig. 1)
- 23cmI.I. Patient longitidunal direction
Patient transverse direction screws (3/Fig. 2) screws(4/Fig. 2)
- 33 cmI.I. Patient longitudinal direction
Patient transverse direction screws (4/Fig. 4) screws (3/Fig. 5)
11
2
3
4
Centering the X-ray tube / Image intensifier 2

LITHOSTAR Multiline Register RXL2-120.071.01 Page 2 of 10 Siemens AG
Rev. 01 05.97 TD SP 1 Medical Engineering
2 - 2 Centering the X-ray tube / Image intensifier
Determining the electrical I. I. center 2
•Attacha washer to thecenterof theI.I.input.(Removethe grid;theplate withthe center
crossmay remain attached.)
•Attacha transparentpieceof tape inthecenterofthe monitor.
•Selectthe smallestzoomformat.
•Releasefluoro.
•Marktheimage of thewasheronthe adhesivetape.
•Select full format.
•Releasefluoro.
Thewashermustappear centeredon themarking(smallestformat on theadhesive
tape).
•Ifnecessary,shiftthe washeronthe I.I. inputand repeattheentire procedure,untilthe
"electricalcenter" isdetermined.
(tolerance±1mm).

Centering the X-ray tube / Image intensifier 2 - 3
Siemens AG Register RXL2-120.071.01 Page 3 of 10 LITHOSTAR Multiline
Medical Engineering Rev. 01 05.97 TD SP 1
Adjusting the 23 cm I.I. 2
Parallel adjustment in the patient longitudinal direction 2
•Removethe9 screws(1/Fig. 2).
•Theimageintensifiercanbe shiftedinthe patientlongitudinaldirectionbyloosening or
tightening the 4 screws (2/Fig.1) .
Parallel adjustment in the patient transverse direction 2
•Turningthe screw (1/Fig.3) shiftsthe I.I.inthepatienttransversedirection.
•Retightenthe 9 screws(1/Fig.2).
•Closethecollimator.
•Releasefluoroandcheckwhetherthe radiationfieldappearsto be centeredto the
markingonthe image intensifier(washerorcentercross).
If not, proceed as follows:
•Removethelowerrubber panellingwith a 2.5mm Allenkey(2screws).
•Loosen thetwo screws on the inside with a3mm Allen key.
•Removethepanelling from the topoftheC-arm (4 panellingscrewswith 2.5mm Allen
key)
•Loosenthetwo screws witha6mmAllen key, butdo not remove them.
Therubberpanellingcannow be removed towardsthetop.
•Reinstall the rubber panelling in the reverse order.
Fig. 2 Fig. 3
1
4
21
3
2

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Rev. 01 05.97 TD SP 1 Medical Engineering
2 - 4 Centering the X-ray tube / Image intensifier
Adjusting the 33 cm I.I. 2
Removing the I.I. mounting covers 2
•Loosentheset screwsontheU-latch and remove them fromthetop.
•Loosenonlythe 6 coverscrews(white); donotremove them.
•Loosenthe4 cover clampsandremovethe cover.
•Loosen only the two upperand four lowerwhite cover screws; do not remove them. Pull
thecoverofftowardthe back.
•Reinstallthe coversin thereverseorder.
Parallel adjustment in the patient longitudinal direction 2
•RemovethefiveAllenscrews (1/Fig.4)(Only3 screwsare pictured).
•TheI.I.(2/Fig.4) can be shiftedwiththe screws inthepatientlongitudinaldirection.
•Retightenthe fiveAllenscrews (1/Fig.4).
Parallel adjustment in the patient transverse direction 2
•Removethe7screws(1/Fig.5) on each side.
•TheI.I.can be shiftedwiththe screw (2/Fig.5) inthepatienttransversedirection.
•Retightenthe screws(1/Fig.5).
Fig. 4 Fig. 5
1
2
3
3
1
4
4
2
Fi 1

Centering the X-ray tube / Image intensifier 2 - 5
Siemens AG Register RXL2-120.071.01 Page 5 of 10 LITHOSTAR Multiline
Medical Engineering Rev. 01 05.97 TD SP 1
Adjustment of the isocenter, +30°/-10° position 2
Adjustment of the isocenter, +30° position 2
•Movetheshockwave headintothe couplingposition(not tobeconfusedwith thegel
position).
•Attachthe adjustmentdevice.
•MovetheC-arminto the30°position.
•Releasefluoro.
Theadjustmentball mustbelocatedinthecenter oftheindicatororthe crosshairs(refer
toFig.10)
a) Shifting in the longitudinal patient direction
•Loosenthemounting screws(B/Fig.7)forthe shockwavehead.
•Shift theshock wave head inthe longitudinal patient direction until the ball lies within the
marking(indicator,centeringcross-hairs)with fluoro.
(Forthe directionsindicated,theshorttableextensionmustbe attachedto theleftsideof
thetable.Otherwisethefigureisdisplayed laterallyreversed.
Inaddition,proneposition mustnotbeselected).
•Retightenthe mountingscrews.
b) Shifting in the transverse patient direction
•Connectthe servicePCtoMULTILINE.
•Connectthe DVM to measurement pointsD5.X12 and D5.X30 (0V).
•Check thevalue at X12 (pot valueR3 for W drive);it should be4.77 V ± 5mV.
•Go intothe ”uncontrolledmode” as describedin the chapter”System Logon,Adjustment
Calibration”ofthe operatinginstructionsfor servicesoftware(RXL2-120.113.01...).
Fig. 6 Fig. 7
- movingthe ballinthemonitorimage YZ
- movingthe shockwaveheadinthe unit yz
a) b)

LITHOSTAR Multiline Register RXL2-120.071.01 Page 6 of 10 Siemens AG
Rev. 01 05.97 TD SP 1 Medical Engineering
2 - 6 Centering the X-ray tube / Image intensifier
•Switchon fluoro.Movethe ball intothecenter oftheindicatororthe cross-hairs) viathe
tablesidecontrol.Use the keys fortheW drive.
•Changefromthe”uncontrolledmode” to thestandardoperatingmode.
•Loosentheset screws(M/Fig.8) ofpotentiometerR3(1.5mmAllen key required)and
rotatethepotentiometer,untilthenominalvalueof 4.77V± 5mV isattained on theDVM.
(ADCvalue954 ± 4 on the servicePC
•Retightenthe screws .
•Readjustreferenceswitch S3:
- theswitchmustbeclosedin the range between4.75Vand 4.79V,
(ADCvalue954 ± 4 )
- theswitchmustbeopeninthe range between<4.73V (ADC value >946)and> 4.81V
(ADCvalue> 962).
Fig. 8
The system is in the ”uncontrolled mode”. This means that the program
no longer monitors system movements. Avoid points of collision.
Perform a reset at Host D1 each time you set the R3 value.
CAUTION
CAUTION

Centering the X-ray tube / Image intensifier 2 - 7
Siemens AG Register RXL2-120.071.01 Page 7 of 10 LITHOSTAR Multiline
Medical Engineering Rev. 01 05.97 TD SP 1
Adjustment of the isocenter, -10° position 2
•Movethetubeinto the-10°position.
•Switchonfluoro.
Theadjustmentball mustbelocatedinthecenter oftheindicatoror the crosshairs.If
required,adjustit.
•Loosenthethree mountingscrews(S/Fig.9) at theshockwavehead.
•Loosentheset screws (M)at theeccentricadjustment(E) (Fig.9).
•Movetheballintothecenter oftheindicatororcross hairsby pushing theexcentric
screwson the shock wave head.
Do notmovetheshock waveheadoutof alignment.
•Retightenthe shockwaveheadmounting screws(S/MFig.9).
•Switchonfluoro. Alternatelyselectthe+30° and -10° positionandveritythat theballis
displayed in the isocenter.
•Ifnecessary,repeatthe adjustmentof the isocenteruntilthereis no more drifting.
•Ifa washerwas attachedforcentering,remove it.
•Removetheadjustmentdevice.
•MovetheWdriveback intothecoupling position.
•Remounttheadjustmentdevice.
•Checktheisocenteradjustmentinboththe +30° and-10°positions withfluoroON.
Ifnecessary,repeatthe isocenteradjustment.
•Removethe adjustmentdevice(doesnot applytoreplacementof the I.I.)
•Performthe crosshairsadjustmentor final steps.
Fig. 9

LITHOSTAR Multiline Register RXL2-120.071.01 Page 8 of 10 Siemens AG
Rev. 01 05.97 TD SP 1 Medical Engineering
2 - 8 Centering the X-ray tube / Image intensifier
Cross hairs adjustment 2
The shock wave head is in the coupling position (not to be confused with the GEL posi-
tion).
•Switchfluoro on and checkthe isocenterat -30°and-10°.
•Ifthe crosshairsneed to be adjusted,the I.I.collisionprotectionandthe grid coverring
ontheI.I.must be removed.
•BypassjumperX18, so thatthe safetycircuitisactivated.
•Loosenthe screwsinthe retainerring farenough so thatthe crosshairscanbe adjusted.
•Switchfluoro on and move thecenteringcrosshairsuntiltheballof theadjustment
deviceisdisplayedinthe centerofthemarking inbothprojectionplanes(-30° and-10°).
•Tightenthe crosshairsmountingscrews.Ensure thatthe retainerring doesnotbend.
•Insertthe I.I.gridatanangleof 45°(± 10°) betweenthebolts oftheretainerring.
•Reinstallthe I.I.collision protectionand tightenthe gridcoverring on theI.I.from below
tosecurethe gridandto preventtwisting.
Image orientation check 2
•Closeone of the collimatorpairscompletely.
•Opentheothercollimatorpair completely.
•Releasefluoro.
•Checkwhetherthe imageorientationisverticalorhorizontal on the monitor.
•Toadjust,loosen themountingscrews on thecamera andturn thecamerahead.
•Checktheimage orientationagain withFL.
Fig. 10
The grid is attached by means of this cover and must also be removed.
ok Acceptable Correction
needed
CAUTION

Centering the X-ray tube / Image intensifier 2 - 9
Siemens AG Register RXL2-120.071.01 Page 9 of 10 LITHOSTAR Multiline
Medical Engineering Rev. 01 05.97 TD SP 1
Final steps 2
•Removejumpersat plug X18.
•Reinstall the I.I. collision protection.
•Reinstall the shock wavehead cover.
•Measuretheprotectiveconductorfunction.
•Perform anIQ test according to chapter6 "Dose rate" ofthe Start-up Instructions(does
notapplywhen replacingthe shock wavehead).
•Replaceor supplementthedocuments.
•Checkallfunctions.

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Rev. 01 05.97 TD SP 1 Medical Engineering
2 - 10 Centering the X-ray tube / Image intensifier
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3 - 1
Siemens AG Register RXL2-120.071.01 Page 1 of 2 LITHOSTAR Multiline
Medical Engineering Rev. 01 05.97 TD SP 1
TD SP 1 / Schlee
TD SP 2 / Wendt
SMS Iselin
Templates changed
Chapter 0 Revision level and table of contents adjusted
Chapter 1 Text changes
Chapter 2 New
Chapter 3 New
Changes as compared to previous versions 3

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Rev. 01 05.97 TD SP 1 Medical Engineering
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