The device was not returned for analysis.Since the device was not returned, we are unable to perform further root cause analysis.All devices are 100% tested and all products are 100% inspected for damages and irregularities during manufacture.If information is provided in the future, a supplemental report will be issued.
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Medtronic received information that during flow diverter placement (pipeline flex 2.75x16).During deployment, the flow diverter did not deploy properly with the distal post aneurysm segment.Before reaching the "re-sheathing marker" the pipeline was still incompletely anchored and deployed.Decision was made to re-sheath and re-position the pipeline.During that phase the marksman catheter was able to re-sheath the stent but retracted proximal to the aneurysm.The catheter had to be pulled and the fd removed in order to reposition properly.A second pipeline flex 3x18mm was used and deployed properly.This event occurred during the treatment of an aneurysm located in the left a1-a2-acom junction.The vessel anatomy was normal.A continuous flush was during procedure.No resistance was felt during the used of the devices.¿the pipeline did not open, it was pushed and tried to unsheathe it but it didn¿t deploy twice.So we recaptured it within the 27 micro catheter also twice.Finally we re-removed it and put a new one¿.
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The pipeline flex shield was returned.No catheter was returned with the device.The distal and proximal dps restraints were found to be intact.The dps sleeves were found intact with no signs of damage.The distal hypotube and ptfe shrink tubing were found to be intact with no signs of elongation.No bend was observed on the pushwire.The distal and proximal ends of the pipeline flex shield braid were found opened and no damage.No defects were found with the tip coil, distal marker, re-sheathing marker, re-sheathing pad or with the proximal bumper.No other anomalies were observed.Based on the analysis findings, the pipeline flex shield was not confirmed to have failure to open at the distal end.The event cause could not be determined as the distal and proximal ends of the pipeline flex shield braid appeared fully opened and no damage.Possible cause includes patient tortuous anatomy.Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.
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