The device was not returned for 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 similar incidents from this lot.The investigation determined the reported difficulties appear to be related to circumstances of the procedure as it is likely that during delivery system removal inadvertent interaction with the previously implanted stent resulted in the reported entrapment of device.Interaction/manipulation of the device resulted in the reported device damaged by another device; thus resulting in the reported tissue injury as reportedly the delivery system dragged and crushed the previously implanted stent in the tibial artery causing vessel damage.The treatment appears to be related to the operational context of the procedure as reportedly cut-down surgery was performed to remove the delivery system and restore flow to the artery.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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It was reported that the procedure was to treat a lesion in the superficial femoral artery (sfa) with moderate calcification.The 6.0x100mm absolute pro self-expanding stent system (sess) was advanced to the target lesion and the stent was implanted without issue; however, during removal the delivery system became stuck with a stent in the tibial artery that had been implanted in a previous procedure.The delivery system dragged and crushed the implanted stent in the tibial artery causing vessel damage and the vessel had to be clamped-off.During, multiple attempts to remove the delivery system of the sess the wire access was lost and the 3-4 cm of the delivery system remained in the posterior tibial artery and the remainder of the delivery system was outside the patient's foot.Later the same day, cut-down surgery was performed to remove the delivery system of the sess and restore flow to artery.There was no adverse sequela.The additional information was provided.
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