Investigation - evaluation: a review of the complaint history, dimensional verification, device history record, quality control and visual inspection of the returned device was conducted during the investigation.The balloon catheter was returned in two segments.The segment included the hub and measured 39.5 cm in length.The balloon segment measured 5 cm in length.A visual examination noted the balloon material had a ¿u¿ shaped tear in it.An unknown sticky residue was also noted on the catheter 2 cm from the distal tip.There is no evidence to suggest the product was not made to specifications.Review of device history record shows no nonconforming events which could contribute to this failure mode.It should be noted 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.We will continue to monitor for similar complaints.Per the risk assessment no further action is required.
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