(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.Visual and functional inspection was performed on the returned device.The reported shaft separation was confirmed.The reported difficulty removing the device could not be confirmed.The reported kink was not confirmed; however, it is likely that the reported kink was located at the separated location noted during return analysis.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other incidents from this lot.The investigation was unable to determine a conclusive cause for the reported kink and difficulty removing the device from the hoop/tray; however, the reported separation appears to be related to circumstances of the procedure.There is no indication of a product quality issue with respects to the design, manufacture or labeling of the device.
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