(b)(4).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 reported from this lot.It should be noted in the supera electronic instructions for use (ifu) indications, section 3.0 states: the supera peripheral stent system is indicated to improve luminal diameter in the treatment of patients with symptomatic de novo or restenotic native lesions or occlusions of the superficial femoral artery (sfa) and / or proximal popliteal artery with reference vessel diameters of 4.0 to 6.5 mm, and lesion lengths up to 140 mm.Therefore, the brachial vein graft is not an intended lesion site for the device.In this case, the brachial vein graft is not an intended for use site for the supera stent delivery system.It is possible that the stent shortening occurred because it was pushed forward during deployment in the brachial vein graft; however, this cannot be confirmed.The investigation was unable to confirm the reported shortened stent.It is possible that the stent shortening occurred because it was pushed forward during deployment in the brachial vein graft; however, this cannot be confirmed.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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