(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The customer reported the device was discarded.Investigation is not yet complete.A follow up report will be submitted with all relevant information.
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(b)(4).The device was not returned for analysis.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 did not indicate a lot specific quality issue.The xience alpine everolimus eluting coronary stent system electronic instructions for use states: prior to using the xience alpine stent system, carefully remove the system from the package and inspect for bends, kinks, and other damage.Verify that the stent does not extend beyond the radiopaque balloon markers.Do not use if any defects are noted.The reported violation of the ifu does not appear to have caused or contributed to the stent dislodgement.The investigation was unable to determine a conclusive cause for the reported difficult to position or stent dislodgement.The foreign body appears to be related to circumstances of the procedure as the stent could not be found anywhere therefore it is possible it remains in the patient anatomy.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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