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 incidents from this lot.Reportedly, the 5.0x80mm supera sess was attempted to be deployed mid lesion; however, resistance was noted with the thumbsilde and the tip of the supera stuck to the previous implanted stent.Excessive force was applied and the tip separated.It should be noted that the supera peripheral stent system instructions for use (ifu) states: should unusual resistance be felt at any time during stent system advancement or stent deployment the entire system should be removed together with the introducer sheath or guiding catheter as a single unit.In this case, the stent was partially deployed and the force was required to try to release the stent.The investigation determined the reported difficulties appear to be related to circumstances of the procedure as it is likely that interaction with the 100% stenosed anatomy resulted in the ratchet being unable to properly engage and release the stent from the delivery system thus resulting in reported activation failure/ deployment failure and the reported mechanical jam.Manipulation as the tip of the supera stuck to the previous implanted stent resulted in the reported difficult to remove and ultimately resulted in the reported material separation.The treatment appears to be related to the operational context of the procedure as the separated tip was retrieved and device was removed from the anatomy.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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