(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.Visual, dimensional and functional inspections were performed on the returned device.The difficulty advancing over the guide wire was confirmed.It is likely that improper loading of the guide wire most likely scratched the interior of the xact guide wire lumen and the shavings formed a blockage that prevented further advancement of the xact unit over the wire.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 of the reported lot revealed no other incidents.The investigation determined the reported difficulty loading the guide wire appears to be related to operational context.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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