The device was not returned for evaluation.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 and/or complaints reported from this lot.Based on the information provided, the reported difficulties appear to be related to circumstances of the procedure.It is likely that the proximal end of the stent partially deployed within the introducer sheath causing the stent to be narrowed and when the tip was retracted to the sheath and locked into place, the tip caught on the narrowed portion of stent causing resistance with the thumbslide and separation of the tip.The stent likely released from the introducer sheath when devices were removed as a single unit.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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It was reported that the procedure was performed to treat a heavily calcified, non-tortuous left superficial femoral artery.Pre-dilatation was done with a 5.0 balloon.Atherectomy was not used.During deployment of the 4.5x100mm supera stent, the stent was deployed too close to the 6f sheath (55cm) and the tip separated.The tip remained on the wire and was removed with the wire and sheath as a single unit.Outside of the patient, the 6f sheath was cut to confirm the tip was removed.The stent remains implanted in the target lesion.Per the physician, there may have been a little resistance when the system lock was rotated and the deployment lock was locked in position (in line with the thumb slide).There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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