|
Investigation ¿ evaluation.It was reported, following extracorporeal shock wave lithotripsy, the catheter was being removed when it was discovered to have broken in half.The pieces were successfully retrieved with graspers.There was no harm to the patient as a result of the event.A visual inspection of the returned device was conducted.A document based investigation was also performed including a review of complaint history, device history record, specifications, and quality control data.One device was returned for investigation.A visual examination confirmed a 5 fr catheter was returned in a used condition and separated in two segments.The catheter was severed 21.2cm from the distal tip, approximately 5mm from the 21st ink band.The proximal segment measured 47.7cm.Total catheter length returned was 68.9cm.The point of separation had mating fractures with dark debris on the edges.The point of separation had white stress marks on the inside wall and edge indicating the catheter was bent or pinched and severed.A review of the device history record(dhr) found no non-conformances related to the reported failure mode.A review of complaint history records shows no other complaints associated with the complaint device lot.Because there were no related non-conformances, adequate inspection activities have been established, there is objective evidence that the dhr was fully executed, and no other lot related complaints that have been received from the field, it was concluded that there is no evidence that nonconforming product exists in house or in field.There is no indication that a design process or related failure mode contributed to this event.Current controls for manufacturing are in place to assure functionality and device integrity prior to shipping.Based on information received from the reporting facility, evaluation of the returned complaint device, and inspection controls in place, the cause for the reported failure mode is attributed to damage due to mishandling during use.The risk analysis for this failure mode was reviewed, and it was determined that no additional risk mitigating activity is required.We will continue to monitor for similar complaints.This report is required by the fda under 21 cfr part 803.This report is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement made in it is intended to be an admission that any cook device is defective or malfunctioned; that a death or serious injury occurred; or that any cook device caused or contributed to; or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
|