Sudden failure of dual channel pulse generators
Identifieur interne : 002F70 ( Istex/Corpus ); précédent : 002F69; suivant : 002F71Sudden failure of dual channel pulse generators
Auteurs : François AleschSource :
- Movement Disorders [ 0885-3185 ] ; 2005-01.
English descriptors
Abstract
An Editor‐Solicited Manufacturer ResposeEditor‐Solicited Manufacturer Respose to this article has been published in Movement Disorders. We report a series of four sudden hardware failures in dual channel pulse generators implanted for chronic stimulation of the subthalamic nucleus in the treatment of Parkinson's disease. In all cases, a sudden and severe deterioration of the patient's neurological condition occurred with symptoms similar to those present before surgery. In all cases, destructive analysis of the generator revealed a fracture of the wire bonds connecting the battery to the hybrid (electronic) part of the pulse generator. This fracture led to repeated Power On Resets, bringing the parameter settings back to default (factory settings). As a cause, we propose that relative movements between the hybrid and the battery led to low cycle fatigue fractures due to insufficient stiffness of the device. That three of four failures occurred when the implant was in the infracostal region makes it likely that the fractures depend on the mechanical stress applied to the device. The efficacy of the therapy resumed immediately after device replacement. As a corrective measure, the manufacturer has added epoxy between both components, increasing significantly the stiffness of the device. © 2004 Movement Disorder Society
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DOI: 10.1002/mds.20354
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ISTEX:488D4519DCF047C5F5B9002E1F0ECE25ACA2B676Le document en format XML
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Disord.</title><idno type="ISSN">0885-3185</idno><idno type="eISSN">1531-8257</idno><imprint><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2005-01">2005-01</date><biblScope unit="vol">20</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="64">64</biblScope><biblScope unit="page" to="66">66</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">488D4519DCF047C5F5B9002E1F0ECE25ACA2B676</idno><idno type="DOI">10.1002/mds.20354</idno><idno type="ArticleID">MDS20354</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Parkinson's disease</term><term>deep brain stimulation</term><term>hardware failure</term><term>pulse generator</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">An Editor‐Solicited Manufacturer ResposeEditor‐Solicited Manufacturer Respose to this article has been published in Movement Disorders. We report a series of four sudden hardware failures in dual channel pulse generators implanted for chronic stimulation of the subthalamic nucleus in the treatment of Parkinson's disease. In all cases, a sudden and severe deterioration of the patient's neurological condition occurred with symptoms similar to those present before surgery. In all cases, destructive analysis of the generator revealed a fracture of the wire bonds connecting the battery to the hybrid (electronic) part of the pulse generator. This fracture led to repeated Power On Resets, bringing the parameter settings back to default (factory settings). As a cause, we propose that relative movements between the hybrid and the battery led to low cycle fatigue fractures due to insufficient stiffness of the device. That three of four failures occurred when the implant was in the infracostal region makes it likely that the fractures depend on the mechanical stress applied to the device. The efficacy of the therapy resumed immediately after device replacement. As a corrective measure, the manufacturer has added epoxy between both components, increasing significantly the stiffness of the device. © 2004 Movement Disorder Society</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>François Alesch MD</name><affiliations><json:string>Neurosurgical Department, Medical University of Vienna, Vienna, Austria</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Parkinson's disease</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>deep brain stimulation</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>pulse generator</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>hardware failure</value></json:item></subject><language><json:string>eng</json:string></language><abstract>An Editor‐Solicited Manufacturer ResposeEditor‐Solicited Manufacturer Respose to this article has been published in Movement Disorders.We report a series of four sudden hardware failures in dual channel pulse generators implanted for chronic stimulation of the subthalamic nucleus in the treatment of Parkinson's disease. In all cases, a sudden and severe deterioration of the patient's neurological condition occurred with symptoms similar to those present before surgery. In all cases, destructive analysis of the generator revealed a fracture of the wire bonds connecting the battery to the hybrid (electronic) part of the pulse generator. This fracture led to repeated Power On Resets, bringing the parameter settings back to default (factory settings). As a cause, we propose that relative movements between the hybrid and the battery led to low cycle fatigue fractures due to insufficient stiffness of the device. That three of four failures occurred when the implant was in the infracostal region makes it likely that the fractures depend on the mechanical stress applied to the device. The efficacy of the therapy resumed immediately after device replacement. 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In all cases, a sudden and severe deterioration of the patient's neurological condition occurred with symptoms similar to those present before surgery. In all cases, destructive analysis of the generator revealed a fracture of the wire bonds connecting the battery to the hybrid (electronic) part of the pulse generator. This fracture led to repeated Power On Resets, bringing the parameter settings back to default (factory settings). As a cause, we propose that relative movements between the hybrid and the battery led to low cycle fatigue fractures due to insufficient stiffness of the device. That three of four failures occurred when the implant was in the infracostal region makes it likely that the fractures depend on the mechanical stress applied to the device. The efficacy of the therapy resumed immediately after device replacement. 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In all cases, a sudden and severe deterioration of the patient's neurological condition occurred with symptoms similar to those present before surgery. In all cases, destructive analysis of the generator revealed a fracture of the wire bonds connecting the battery to the hybrid (electronic) part of the pulse generator. This fracture led to repeated <i>Power On Resets</i>, bringing the parameter settings back to default (factory settings). As a cause, we propose that relative movements between the hybrid and the battery led to low cycle fatigue fractures due to insufficient stiffness of the device. That three of four failures occurred when the implant was in the infracostal region makes it likely that the fractures depend on the mechanical stress applied to the device. The efficacy of the therapy resumed immediately after device replacement. As a corrective measure, the manufacturer has added epoxy between both components, increasing significantly the stiffness of the device. © 2004 Movement Disorder Society</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><!--Version 0.6 générée le 4-12-2015--><mods version="3.6"><titleInfo lang="en"><title>Sudden failure of dual channel pulse generators</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Failure of Dual Channel Pulse Generators</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Sudden failure of dual channel pulse generators</title></titleInfo><name type="personal"><namePart type="given">François</namePart><namePart type="family">Alesch</namePart><namePart type="termsOfAddress">MD</namePart><affiliation>Neurosurgical Department, Medical University of Vienna, Vienna, Austria</affiliation><description>Correspondence: Neurosurgical Department, Medical University of Vienna, Währinger Gürtel 18‐20, A‐1090 Vienna, Austria</description><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre authority="originalCategForm">article</genre><originInfo><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><place><placeTerm type="text">Hoboken</placeTerm></place><dateIssued encoding="w3cdtf">2005-01</dateIssued><dateCaptured encoding="w3cdtf">2004-09-14</dateCaptured><dateValid encoding="w3cdtf">2004-10-22</dateValid><copyrightDate encoding="w3cdtf">2005</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">2</extent><extent unit="references">4</extent><extent unit="words">5329</extent></physicalDescription><abstract lang="en">An Editor‐Solicited Manufacturer ResposeEditor‐Solicited Manufacturer Respose to this article has been published in Movement Disorders. We report a series of four sudden hardware failures in dual channel pulse generators implanted for chronic stimulation of the subthalamic nucleus in the treatment of Parkinson's disease. In all cases, a sudden and severe deterioration of the patient's neurological condition occurred with symptoms similar to those present before surgery. In all cases, destructive analysis of the generator revealed a fracture of the wire bonds connecting the battery to the hybrid (electronic) part of the pulse generator. This fracture led to repeated Power On Resets, bringing the parameter settings back to default (factory settings). As a cause, we propose that relative movements between the hybrid and the battery led to low cycle fatigue fractures due to insufficient stiffness of the device. That three of four failures occurred when the implant was in the infracostal region makes it likely that the fractures depend on the mechanical stress applied to the device. The efficacy of the therapy resumed immediately after device replacement. As a corrective measure, the manufacturer has added epoxy between both components, increasing significantly the stiffness of the device. © 2004 Movement Disorder Society</abstract><subject lang="en"><genre>Keywords</genre><topic>Parkinson's disease</topic><topic>deep brain stimulation</topic><topic>pulse generator</topic><topic>hardware failure</topic></subject><relatedItem type="host"><titleInfo><title>Movement Disorders</title><subTitle>Official Journal of the Movement Disorder Society</subTitle></titleInfo><titleInfo type="abbreviated"><title>Mov. 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