(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The device is expected to be returned for evaluation.It has not yet been received.A follow up report will be submitted with all relevant information.
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It was reported that the procedure was to treat a chronic totally occluded de novo lesion with moderate calcification in the distal superficial femoral artery.Pre-dilatation was performed with a 6 mm balloon and the introducer sheath was approximately 20 cm to the proximal end of the stent.During deployment, the deployment lock unlocked and the thumb slide advanced to the most distal position on the handle; however, the supera stent distally missed covering 25% of the lesion.The proximal end of the stent was deployed in healthy tissue.Under fluoroscopy, the delivery system was removed and another supera stent was used to cover the lesion completely.There was no adverse patient sequela and no clinically significant delay in the procedure.No additional information was provided.
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(b)(4).Evaluation summary: the device was returned and the reported inaccurate delivery could not be replicated as the stent had already been deployed.Based on a visual inspection of the returned product, there is no indication of a product quality issue with respect to manufacture, design or labeling.The investigation determined that a conclusive cause for the reported difficulty could not be determined.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 similar incidents from this lot.Based on the information reviewed, there is no indication the issue was caused by, or related to the design, manufacture or labeling.
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