Leksell® Multi Purpose Stereotactic Arc
Contents
1. 0 DEC03 Printed in Sweden All rights reserved No document may be reproduced in any form without written permission from the copyright holder The information in this document is subject to change without notice and does not represent a commitment on the part of Elekta The Elekta logotype Leksell and Leksell Stereotactic System are registered trademarks of Elekta AB publ or it subsidaries2. E between them and the back surface of the arc 1 Loosen thumbwheel at back of unmarked axis support and slide unmarked axis to open position 2 Move the engraved arc axis and align the required X coordinate exactly with the X index mark NOTE Make sure to use correct scale 3 Secure the arc axis by tightening the screw face with the instrumen screwdriver Fitting the arc and setting the ring angle 1 Align the arc correctly with the frame e Lateral right orientation the engraved arc axis must mate with the arc support ring on the patient s right side e Lateral left orientation the engraved arc axis must mate with the arc support ring on the patient s left side 2 Introduce the ring of the engraved arc axis into the annulus of the ring on the arc support Ensure the small tab fits into the corresponding indent 3 Fit the ring of the unmarked arc axis into the ring of the other arc support Ensure the small tab fits into the corresponding indent 4 Carefully push the unmarked arc axis inwards and hold it firmly Tighten thumbwheel on back of unmarked arc axis with other hand to secure the unmarked arc axis in place Make sure there is no narrow opening KA 5 Release the thumbwheel at the ring on each arc axis 6 Tilt the arc until the index mark is exactly aligned with the desired ring angle 7 Tighten the thumbwheels on both arc axis to s
3. LEKSELL MULTI PURPOSE STEREOTACTIC ARC Main Parts EE Semicircular arc WA Instrument carrier EJ Instrument stop holder engraved EB Instrument guide holder EJ Axis support engraved KE Axis support Arc axis engraved EJ Arc axis EF Arc supports engraved Slides Instrument screwdriver Quick reference guide Leksell Multi Purpose Stereotactic Arc ay Introduction This is a quick reference guide for Leksell Multi Purpose Stereotactic Arc It is the user s responsibility to be fully informed of its proper use For detailed instructions read Leksell Multi Purpose Stereotactic Arc Instructions for Use Leksell Multi Purpose Stereotactic Arc is part of Leksell Stereotactic System which is intended for localization and diagnosis of intracranial disorders and their surgical treatment including radiosurgery and stereotactic radiation therapy Names and abbreviations Arc Leksell Multi Purpose Stereotactic Arc Frame Leksell Coordinate Frame G ELEKTA 2 LEKSELL MULTI PURPOSE STEREOTACTIC ARC Arc orientations Assembling lateral arc orientations Lateral right orientation Fitting arc supports and setting Z coordinate e The engraved arc axis is on the patient s right side 1 Insert an arc support EJ in a slide HO e The engraved surface of the arc faces anterior 2 Move support and e The X coordinate is set on the RIGHT scale align the required Z coordin
4. ate exactly with the index mark KPA 3 Secure the arc support at the required Z coordinate NOTE Lateral left orientation Do not overtighten the screw e The engraved arc axis is on the patient s left side to secure Z coordinate Otherwise it may be difficult to move slide and arc support along the frame e The engraved surface of the arc faces posterior e The X coordinate is set on the LEFT scale 4 Fit and secure the other arc support in the slide in the same manner Sagittal posterior orientation Fitting slides and setting Y coordinate e The engraved arc axis is at the patient s posterior 1 Insert a slide with arc i e The engraved surface of the arc faces the patient s Topor Koy nihe bok e e groove of a side bar e The Y coordinate is set on the POST scale 2 Move the slide and align the required Y coordinate exactly with the vertical index mark KEJ Sagittal anterior orientation e The engraved arc axis is at the patient s anterior The engraved surface of the arc faces the patient s left side e The Y coordinate is set on the ANT scale a came te ENNE instrument screwdriver ee cel i N f 4 Fit and secure the other slide with arc support LEKSELL MULTI PURPOSE STEREOTACTIC ARC Fitting arc axis and setting X coordinate NOTE If the arc axis holders have been disassembled ensure that both have been properly remounted There should be no gap K
5. e carrier is correctly oriented so that index mark is visible at the engraved face of the arc 4 Move the carrier until the desired arc angle is exactly aligned with the index mark LEKSELL MULTI PURPOSE STEREOTACTIC ARC 5 Tighten thumbwheel on top to secure the instrument carrier Fitting the instrument guide and stop holders 1 Insert the stem of the instrument guide holder KE into the unmarked slot in the instrument carrier with the collar nearest to the patient s skull 2 Tighten the thumbwheel to secure the guide holder 3 Insert the stem of the instrument stop holder BY in the marked slot of the instrument holder with the collar nearest to the patient s skull 4 Move instrument stop holder until the horizontal index mark on the carrier is exactly aligned with the desired mark on the stop holder scale 5 Tighten the thumbwheel to secure the stop holder in place 6 The arc is now fully assembled The stop insert PA and guide insert P of the selected 3 instrument can now be inserted into the collars See User s manual for selected instrument Removing of the Arc Remove the Arc from the Frame in the reverse of that when securing the Arc Disassembly Disassemble the Arc in the reverse of the assembly procedure Care amp maintenance For detailed instructions read Leksell Multi Purpose Stereotactic Arc Instructions for Use Elekta Instrument AB Article no 014612 0
6. ecure the arc at the desired ring angle NOTE It is very important that the two thumbwheels are properly tightened Assembling sagittal arc orientations NOTE For sagittal orientations use a straight or slotted front piece not a curved one Assembling of the arc for sagittal orientations follows in principal the same workflow as for lateral orienta tions with some important exceptions 1 Setting Z coordinate The Z coordinate is set in the same way as for lateral orientations The coordinate is set gt on the arc support 4 2 Setting X coordinate For sagittal orientations the X coordinate is set before setting the Y coordinate The X coordinate is set on the front piece and back piece of the frame 3 Setting Y coordinate For sagittal orientations the Y coordinate is the last coordinate set The coordinate is set on the engraved arc axis with the Y index mark nm at MALA i 0s ee par NOTE Make sure to use the correct scale 4 Align the arc correctly with the frame e Sagittal posterior orientation the engraved arc axis must mate with the arc support ring on the patient s posterior e Sagittal anterior orientation the engraved arc axis must mate with the arc support ring on the patient s anterior Fitting the instrument carrier Setting the arc angle 1 Release locking thumbwheel KEJ 2 Attach the instrument carrier to the arc 3 Ensure that th
Download Pdf Manuals
Related Search