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(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.Concomitant medical products: guide wire: sion blue, guide catheter: hyperion 6fr jl3.5.The device was not returned for evaluation.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 issue.The investigation determined the reported difficulties appear to be related to circumstances of the procedure.There is no indication of a product quality issue with respect to manufacture, design or labeling of the device.
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It was reported the procedure was performed to treat an eccentric lesion with heavy tortuosity, mild calcification and 90% stenosis in the proximal circumflex coronary artery.A 3.0 x 23 mm xience alpine stent delivery system (sds) was advanced to the target lesion; however, was unable to cross the lesion due to the anatomy.The physician noticed on cine that the stent shifted [loose] on the balloon.Therefore, the sds was withdrawn from the patient anatomy without any issue.A non-abbott device was used to complete the procedure.There was no adverse patient effect and no clinically significant delay in the procedure.No additional information was provided.
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