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.As there was no damage noted to the device during the inspection prior to use, it is possible that during device withdrawal the device tip inadvertently got caught on the deployed stent resulting in the reported difficult or delayed activation.Interaction and/or manipulation of the device by moving the lever back and forth to get the stent and tip to fully release from one another resulted in the reported tip material separation; however this cannot be confirmed.The investigation determined a conclusive cause for the reported difficulties cannot be determined.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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It was reported that the procedure was to treat a de novo lesion located in the superficial femoral artery that was heavily calcified.During deployment, the 6.0x150 supera stent would not fully release from the stent system.The lever was moved back and forth in order to deploy the stent.During deployment and withdrawal, the tip came off.The tip was snared from inside the sheath.The patient had a good outcome and is doing fine.There was no adverse patient sequelae and no reported clinically significant delay in the procedure.No additional information was provided.
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