Manufacturing review: review of manufacturing records was not required, as no additional complaint has been reported for this lot.Based on the information available it is not reasonably suggested that a manufacturing process may have caused or contributed to the reported issue.However, the lot history records of this lot were reviewed with special attention to the manufacturing and inspection of this product and the product was found to have met all specifications prior to shipment.Investigation summary: a stent graft delivery system was returned for evaluation.On the basis of the returned stent graft delivery system, the alleged deployment failure could be confirmed.The stent graft was found partially released and the outer sheath was found elongated, which indicated that increased friction affected the delivery system during attempt of stent graft deployment.Furthermore, the outer sheath was found perforated by stent graft strut, which made a stent graft deployment impossible.As a result of the investigation performed the complaint is confirmed.A definite root cause for the reported event could not be determined.Labeling review: the review of the ifu (instructions for use), indications, warnings, precautions, cautions, possible complications, and contraindications showed that the product labeling is adequate.
|