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Additional information: (b)(4).A review of the complaint history, drawings, dimensional verification, device history record, documentation, instructions for use (ifu), manufacturing instructions, specifications, quality control, and visual inspection of the returned device was conducted during the investigation.One used advance 18 lp low profile balloon catheter was returned for investigation.The balloon is separated from the catheter, as well as the marker band tubing.The balloon was returned ruptured longitudinally and radially.The marker band tubing is separated from the catheter.No marker bands are present.7.0mm of balloon material is attached to the proximal bond of the catheter.There is no evidence to suggest the finished product was not made to specifications.Balloon burst, compliance, fatigue, tensile strength, and sheath compatibility verification tests have been performed.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 complaint events for this lot number.The investigation identifies patient anatomy as a possible root cause of the complaint, as stated by the reporter.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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