(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 investigation.It has not yet been received.A follow-up report will be submitted with all additional relevant information.
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(b)(4).Evaluation summary: visual inspection was performed on the returned device.The reported difficulty to insert was not confirmed because the introducer sheath was not returned and the stent was compromised.The unstable stent was confirmed.The kink was not confirmed.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 of the reported lot revealed no other incidents.Based on the information reviewed, there is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.The investigation was unable to determine conclusive cause for the reported difficulties.
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