It was reported that the procedure was to treat a heavily calcified lesion in the left superficial femoral artery.A 5.5x100mm supera peripheral stent system was advanced to the lesion; however, during deployment the stent and part of the delivery catheter got caught in the sheath.The delivery system was unlocked and the stent was deployed.Resistance with the sheath was felt while removing the delivery catheter and a pop was heard from the catheter tip.The catheter tip separated from the device; however, remained on the guide wire.The catheter tip was successfully retrieved with a snare device.There was no clinically significant delay in the procedure and no adverse patient effects.No additional information was provided.
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(b)(4).Visual inspection was performed on the returned device.The reported deployment issue, noise, and difficulty removing was unable to be confirmed as the stent had already been fully deployed.The tip separation was confirmed.It is likely that the stent was partially deployed within the introducer sheath and during withdrawal of the delivery system, the tip detachment occurred as the partially deployed stent was pulled into the reduced clearance of the introducer sheath.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.The investigation determine the reported difficulties were likely related to circumstances of the procedure.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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