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Investigation - evaluation: a review of the complaint history, drawings, dimensional verification, device history record, instructions for use (ifu), manufacturing instructions, quality control, and visual inspection of the returned device was conducted during the investigation.One device was returned with biomatter present.The balloon was separated from the distal joint.The balloon was still connected at the proximal end.The catheter outer diameter measured within specification.The length of the distal tip could not be obtained because the tip was likely distorted during separation of the balloon material from the catheter.A document-based investigation was performed.There is no evidence to suggest the finished product was not made to specifications.Numerous design verification and validation activities have been performed to ensure that this device meets design requirement, each balloon is 100% inspected and verified prior to release.Review of the device history record shows non-conforming events; however, all non-conforming product was scrapped or reworked prior to completion of the final lot.In addition, there were no other complaints reported for this lot number.Based on the information provided, examination of the returned device, and the results of our investigation; the root cause has been determined to be related to user technique, as the facility reported the balloon was inflated non-traditionally.Per the risk assessment, no further action is required.Appropriate personnel have been notified and monitoring will continue to be performed for similar complaints.
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