(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The device is expected to be returned for evaluation.It has not yet been received.A follow up report will be submitted with all additional relevant information.
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It was reported that 5.0x80 mm supera stent was deployed in the moderately tortuous, mildly calcified, de novo lesion in the predilated, mid superficial femoral artery (sfa); however, during removal of the stent delivery system (sds), the stent was pulled to another lesion in the external iliac artery.Additionally, it was noted that the tip of the sds had separated and was lodged in the 6 french sheath on the guidewire.The tip was removed with removal of the procedural sheath.The surgeon was comfortable with the stent location and angioplasty results of the sfa, so the procedure was completed.There was no adverse patient sequela or a clinically significant delay in the procedure.No additional information was provided.
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(b)(4).Evaluation summary: visual inspections were performed on the returned device.The deployment difficulty was unable to be confirmed as the stent had already been deployed.The tip detachment was confirmed.The tip detachment likely occurred when the partially deployed stent was pulled through the restricted area of the introducer sheath which exceeded the tensile strength of the tip lumen.The investigation was unable to determine a conclusive cause for the reported deployment issue.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history of the reported lot revealed no other incidents.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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