A visual and dimensional inspections were performed on the returned sds.The reported shaft separation was confirmed.The reported failure to advance and difficulty to remove were unable to be replicated in a testing environment as it was based on operational circumstances.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 did not indicate a lot specific quality issue.There was no damage noted to the sds during the inspection prior to use which suggests a product quality issue with respect to manufacture, design or labeling did not contribute to the reported difficulties.The investigation determined the reported difficulties appears to be related to operational circumstances of the procedure.Based on the reported information, during advancement and retraction the sds encountered resistance with the moderately tortuous and heavily calcified anatomy.It likely that manipulation against resistance caused the hypotube to kink resulting in the hypotube separation.The hypotube fractured faces at the separation were ovalled as if kinked prior to separation.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
|