Visual and dimensional analysis was performed on the returned device.The reported difficulty removing the catheter was unable to be confirmed.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.A query of the complaint handling database for the reported lot was performed and revealed there is no indication of a lot level quality product issue.The investigation determined that the difficulties were likely related to circumstances of the procedure.The stretched guidewire exit port noted on the returned dragonfly catheter suggests that positioning or withdrawal difficulty was encountered during use.While the exact cause of the reported withdrawal issue could not be confirmed, it is likely that the patient¿s anatomical condition(s), or more likely the condition of the guidewire being used affected the catheter¿s ability to be withdrawn; however, this could not be confirmed.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.D4: correction lot# from unknown to 8677057.
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