The device was returned for analysis.The reported product quality problem irregular appearance and the reported material separation were able 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.Additionally, a review of the complaint history identified no other incidents from this lot.The investigation determined the reported difficulties appear to be related to circumstances of the procedure as it is likely that inadvertent mishandling during unpackaging and/or during preparation for use resulted in the reported tip separation/noted tip jacket and inner member separations; thus resulting in the reported product quality problem irregular appearance.There is no indication of a product quality issue with respect to manufacture, design or labeling.The additional supera self expanding stent referenced in report is filed under a separate medwatch report number.
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It was reported that the procedure was to treat the popliteal and distal femoral artery (sfa) via a direct stick to the popliteal through a bypass graft.The vessel diameter was 4-4.5mm, and the atherectomy was not used.During preparation of a 4.5x40mm supera self expanding stent (sses) the nosecone appearance did not like how it looked therefore was not used in the patient.Another 4.5x60mm supera sses was prepared, and the vessel was prepared with a balloon dilatation.The stent was deployed; and during removal under fluoroscopy, the red levers were not locked before the catheter was being pulled out, the nosecone got stuck on the stent strut and then detached.The nosecone was unable to be removed from the location.The delivery system was removed under fluoroscopy.The nosecone remains in the peroneal artery; however, the artery was confirmed to be patent.There were no reported adverse patient sequela.Returned device analysis of the 4.5x40 supera sess identified a separated tip which was not returned.The account stated it was likely discarded.No additional information was provided.
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