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 revealed no other incidents and/or complaints reported from this lot.Based on the information provided, the reported deployment difficulty appears to be due to case circumstances.It is likely that there was inadequate distance between the introducer sheath and stent during deployment causing the proximal end of the stent to deploy in the sheath.The additional treatment to release the stent from the introducer sheath was due 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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It was reported that the procedure was to treat a very complex, heavily calcified, chronic total occlusion (cto) from the superior femoral artery (sfa) to the proximal popliteal.After a 4.5x120mm supera stent was deployed, it was noted that approximately 5mm of the proximal part of the stent had deployed inside the 45cm, 7fr non-abbott, introducer sheath.An unspecified balloon was used to push the stent through the sheath, and it was successfully deployed in the target lesion.The delivery system was removed from the patient under fluoroscopy, without complications.The patient recovered pulse in the posterior tibial artery.There was no adverse patient sequela and no reported clinically significant delay in the procedure.There was no additional information provided regarding this issue.
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