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It was reported that during an angioplasty, the advance micro 14 ultra low-profile pta balloon catheter hub detached from the catheter shaft as the catheter was being removed from the patient.A section of the device did not remain inside the patient¿s body.The patient did not require any additional procedures due to this occurrence. according to the initial reporter, the patient did not experience any adverse effects due to this occurrence.Additional information regarding event details and patient anatomy has been requested, but is not available at this time.
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Per additional information received on 21feb2018, once deflated that balloon was allowed to return to ambient pressure; a clockwise rotation of the balloon was not conducted upon withdrawal of the catheter.During removal of the catheter, a wire guide (manufacturer unspecified) was in place.The patient's lesion was located in the popliteal artery; the lesion was reported to be very calcified.Another manufacturer's 4 fr and 5 fr sheath were utilized during the procedure.Investigation - evaluation: a review of the complaint history, 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 micro ultra low-profile pta balloon catheter was returned for evaluation.The catheter was separated into two segments - within the strain relief, as well as in the middle of the shaft.The catheter was not observed to be separated from the hub.The end of the proximal segment of the catheter had 1.9 centimeters (cm) of accordion damage.The distal segment was not damaged.The strain relief was removed from hub and 2.2 cm of catheter tubing was noted to be extending from the hub.Approximately 1.5 cm of catheter was noted within the hub.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 requirements.Review of the device history record of the finished product shows no nonconforming events that could contribute to this failure mode.A complaint history search revealed that there were no other reported complaints for this lot number.Per the ifu, "upon catheter withdrawal, a gentle counterclockwise rotation of the catheter will assist balloon rewrap, minimizing trauma to the percutaneous entry site." based on the information provided, examination of the returned product, and the results of our investigation, the root cause of this event can likely be attributed to patient anatomy as the separation occurred during withdrawal from a heavily calcified vessel.It is possible that product use contributed to this event as the balloon was not rotated during withdrawal of the device, which is recommended per the ifu.Per the quality engineering risk assessment, no further action is required.Monitoring will continue to be performed for similar complaints.
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