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 other incidents from this lot.The investigation determined the reported difficulties are related to the operational context of the procedure.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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It was reported that the procedure was to treat a lesion in the distal right coronary artery (drca) with moderate calcification and mild tortuosity.A 2.50 x 18 xience sierra stent delivery system (sds) was attempted to be advanced to the target lesion; however, resistance was felt due to anatomical challenges, and the stent could not cross the target lesion.Then the shaft of the sds became kinked.Therefore, the sds was removed and resistance was noted during removal due to anatomical challenges.An unspecified stent was implanted to successfully treat the target lesion.There were no adverse patient effects and there were no reported clinically significant delay in the procedure.No additional information was provided.
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