Additional narrative: (b)(4).(b)(6).This device was returned for service; however, did not meet manufacturing specifications during pre-repair assessment.Reliability engineering evaluated the device and the reported condition was duplicated and confirmed.The assignable root cause was determined to be due to wear from normal use and servicing over time.If additional information should become available, a supplemental medwatch report will be sent accordingly.
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It was reported from (b)(6) that the power drive device had an undetermined malfunction.During service and evaluation, it was observed that the power drive device motor seized, jammed, heavy moving, was blocked and the control unit had low power.It was further determined that the device failed the following pre-tests: check for untrue running, reverse locking mechanism, check function of hand piece, function test, check for immediate stop, check triggers and electronic control unit (ecu).This event did not occur during surgery.There was no patient involvement.There were no reports of injuries, medical intervention or prolonged hospitalization.The exact date of this event was unknown.All available information has been disclosed.If additional information should become available, a supplemental medwatch report will be submitted accordingly.
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