It was reported when the physician removed the supera stent from the packaging, it was observed the device was unlocked and deployed.Therefore, the device was not used and was replaced.There was no clinically significant delay in the procedure.No additional information was provided.Subsequent to the initial information, the returned device analysis reported the stent was deployed and the device was returned with blood on the inner member of the device.The inner member separated 0.5cm proximal to the distal end of the jacket.
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The device was returned for analysis.The reported irregular appearance and the reported premature activation were unable to be replicated in a testing environment due to the condition of the returned device.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 similar incidents from this lot.It was reported that when the physician removed the supera stent from the packaging it was observed the device was unlocked and deployed.Therefore, the device was not used and was replaced.However, the device was returned with blood and contrast visible inside the inner member consistent with advancement/use.An initial follow up to the account confirmed the correct device was returned; however an additional follow up to the account confirmed there is a possibility that the product that was returned was the one implanted (instead of the complaint device).As such, as the noted device condition and the noted device damages (pinched sheath, separated inner member) are inconsistent with the reported difficulties, the investigation determined a conclusive cause for the reported/noted difficulties cannot be determined.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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