Visual analysis was performed on the returned product.The reported failure to advance was not tested as it was based on case circumstances.The stent dislodgment was confirmed.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 complaints.The investigation determined that the reported failure to advance and stent dislodgment were due to case circumstances.It is likely that anatomical conditions contributed to the reported failure to cross.It is likely that the stent became compromised (loosened) on the balloon during the failed attempt to advance resulting in dislodgment of the stent once removed from the anatomy.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.Na.
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