(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.Concomitant products: guide wire: elite ii.Guide cath: profit 6fr jr3.5.Stent: 4x18mm xience alpine.The device was not returned for evaluation.The investigation was unable to determine a conclusive cause for the reported difficulties.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 identified no other similar incidents from this lot.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.The traveler device is currently not commercially available in the us; however, it is similar to a device sold in the us.
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It was reported that the procedure was to treat a de novo lesion in the proximal right coronary artery with mild tortuosity, moderate calcification and 75% stenosis.After the lesion was checked with intravascular ultrasound (ivus) a xience alpine stent was implanted.A 4x15mm nc traveler balloon dilatation catheter (bdc) was used to perform post dilatation per standard procedure.The device was inflated without issue once up to 14 atmospheres (atm) and a second time up to 16 atm.Negative pressure was held for 5-8 seconds in both deflations.The balloon was fully deflated and the bdc was withdrawn with resistance due to an unspecified guide catheter.The bdc could not be withdrawn into the guide catheter because the balloon was poorly refolded.Thus, the guide catheter and bdc were removed as a single unit.There was no adverse patient effect and no clinically significant delay in the procedure.No additional information was provided.
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