It was reported that the procedure was performed to treat an 80% stenosed lesion in the mid internal carotid artery with mild tortuosity and moderate calcification.During deployment of the 6-8/40 acculink stent, the stent jumped 70% outside the lesion; therefore, another acculink stent was deployed to cover the lesion and the patient had a good outcome.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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(b)(4).Evaluation summary: (b)(4).The device was returned for analysis.The difficulty deploying the stent was not able to be confirmed as the stent had already been deployed.Based on a visual inspection of the returned device, there is no indication of a product quality issue with respect to manufacture, design, or labeling.The investigation determined that a definitive cause for the reported difficulties 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 reviewed information, there is no indication the issue was caused by, or related to the design, manufacture or labeling of the device.
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