(b)(4).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 of the reported lot did not indicate a lot specific quality issue.The investigation was unable to determine a conclusive cause for the reported winged/flat balloon; however, the reported difficulty removing the balloon dilatation catheter through the guiding catheter appears to be related to operational context and there is no indication of a product quality issue with respects to the design, manufacture or labeling of the device.
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It was reported that during a distal right coronary artery (rca) intervention, the nc trek was inflated and deflated at the lesion without issue; however, the balloon was difficult to retract into the non-abbott guide catheter.The balloon, guide catheter and guide wire were removed as a system.Outside the anatomy, the balloon was noted to have deflated flat.There was no reported adverse patient sequela or a clinically significant delay in the procedure.No additional information was provided.
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