(b)(4).Internal file number - (b)(4): during processing of this complaint, attempts were made to obtain complete event, patient and device information.The device was not returned for analysis.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history identified no similar incidents from this lot.The investigation was unable to determine a conclusive cause for the reported difficult to position and difficult to remove; however, the reported stretched shaft appears to be related to circumstances of the procedure.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.
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It was reported that the procedure was to treat a heavily tortuous, heavily calcified, lesion in the right coronary artery.Resistance was felt when advancing the 3.5x38 mm xience alpine stent delivery system (sds), through the guiding catheter.The decision was made to remove the sds from the guide catheter.When attempting to remove the sds, resistance was felt with the guide catheter and the shaft of the sds stretched.The guide catheter and sds were removed together as a single unit.A same size xience alpine sds was used to complete the procedure.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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