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(b)(4).Internal file number - (b)(4): during processing of this complaint, attempts were made to obtain complete event, patient and device information.Evaluation summary: the device was returned for analysis.The reported difficulty to deploy was confirmed.The reported material rupture was unable to be confirmed; however, an inner member tear was observed which was likely perceived as a rupture.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.As there was no leak noted to the stent delivery system during preparation of the device, the investigation determined the reported difficulties appear to be related to circumstances of the procedure as it is likely the guide wire interacted with the inner member during advancement resulting in the noted tear and difficult to deploy.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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