As received, the unit was correctly bagged and sealed.No defects were found during the catheter outer surface inspection except on the balloon area where a longitudinal tear of approximately 20 mm from the proximal seal to the distal seal was found.This is an indication that the balloon was over inflated which resulted in stretching the balloon and possibly led to rupture.Catheter flushed appropriately.Balloon was ruptured, so the balloon could not be inflated.The complaint was not confirmed.The investigation showed a longitudinal tear of approximately 20 mm from the proximal seal to the distal seal in the balloon material.One of the causes that may have led to this effect (balloon burst) is the mentioned air bubbles that could not be pulled out from the balloon.Air bubbles in the balloon, per the dfmea, are a consequence of an incorrect preparation of the catheter.After performing the dhr review, for the lot involved on this product complaint, it could be confirmed that there is no anomaly during the manufacturing and inspection processes that can be associated with the reported complaint.The balloon catheter was received from the field burst, it is not possible to investigate causes such as whether the vent hole is open or closed; whether the balloon was over inflated, whether the balloon was not held face up as indicated in the ifu, whether the contrast reached the vent hole prematurely, etc.If the balloon has burst.All possible causes related to a device malfunction are ruled out since 100% leak testing is performed on each balloon catheter before it is released to determine whether the vent hole is open and whether or not the balloon leaks, so it is not likely that the balloon left codman neurovascular with the vent hole closed.Also as there were no anomalies identified during review of the manufacturing documentation for the lot no corrective action will be performed at this time.
|