Device history record (dhr) review confirmed that freedom driver s/n (b)(6) was serviced and passed all functional testing prior to being released to finished goods.Alarm history and patient data file review found no new alarms recorded on driver's data file.Visual inspection of external components found light crimp/crease marks on drivelines.Visual inspection of internal components found no abnormalities.Freedom driver passed all functional testing for acceptance at incoming inspection.An additional 48-hour observational test was performed but no red alarm or asterisks on driver display were produced.Complaint was not replicated, however, after the first 15 minutes of operation, a kink on the drivelines would produce a recoverable alarm and asterisks on the driver display but this occurrence cannot be confirmed.Failure investigation for this complaint could not confirm the reported issue, however, it is known that a kink in the driveline could result in a recoverable alarm and asterisks on the driver display.The customer complaint was not replicated; the root cause of the customer reported complaint was unable to be determined.Failure investigation identified no test failures or other damage that could have contributed to the complaint.The visual inspection of the drivelines shows a kink/crease that likely would have resulted in a recoverable alarm, however, this is not a malfunction.Freedom driver functioned as designed.Patient was switched to a backup driver without any reported adverse impact.This issue will be monitored and trended as part of the customer complaint process.Syncardia has completed its evaluation and is closing this file.If new or additional information is received in the future, syncardia will file a follow-up mdr.
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