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 identified no other similar incidents.The investigation was unable to determine a cause for the reported difficulty.It may be possible that the distal sheath was restricted or entrapped within the anatomy causing the stent to move during deployment due to built-up tension within the shaft lumens of the delivery system resulting in a spring like release of the stent; however, this could not be confirmed.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 performed to treat a target lesion in the heavily calcified left superficial femoral artery.The absolute pro vascular stent was advanced to the target lesion and deployed.During deployment, the stent moved forward, covering only part of the lesion.An additional balloon-expandable stent was implanted, covering the remaining lesion.There was no adverse patient sequela and no clinically significant delay.No additional information was provided.
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