(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 material deformation and the reported torn material/guide wire exit notch were confirmed.The reported failure to advance the device was unable to be replicated in a testing environment as it was based on operational circumstances.The investigation determined the reported difficulties appear to be related to circumstances of the procedure.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 did not indicate a lot specific quality issue.There is no indication of a product quality issue with respect to manufacture, design or labeling.The xience prox device is currently not commercially available in the u.S; however, it is similar to a device sold in the us.
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