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A review of the complaint history, drawings, device history record, documentation, instructions for use (ifu), specifications, quality control, and visual inspection of the returned device was conducted during the investigation.One used, damaged advance 35 lp low profile balloon catheter was returned for investigation.A non-cook sheath with a 6fr-stamped hub was also returned with the cook balloon catheter inserted through it.The non-cook sheath was located approximately 3cm from the distal end of the balloon catheter.It was removed from the cook balloon catheter.The balloon had a longitudinal separation and a radial separation.A middle portion of the balloon material is not present.4.0cm of catheter tubing separates the distal section of balloon material and the proximal section of balloon material.Inspection of the surface of the device showed no non-conformities.There is no evidence to suggest the finished product was not made to specifications.Review of the device history record of the finished product shows no nonconforming events that would contribute to this failure mode.There were no other reported complaints for this lot number.Based on the information provided and the results of our investigation, a definitive root cause could not be determined.Per the quality engineering risk assessment, no further action is warranted.Monitoring will continue to be performed for similar complaints.
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