The product was returned with the membrane completely unfolded and blood on the interior and exterior of the catheter.Photos were provided and reviewed.An underwater leak test of the balloon, catheter, y-fitting and extracorporeal tubing was performed and a leak was observed at the iab tip and front seal of the membrane detached from the iab tip.The complaint was confirmed in determining that the cause of the leak came from the membrane detaching from the iab tip.The dhr was reviewed to determine that the device followed all standard procedures in the assembly of the product and was deemed acceptable before leaving the manufacturing facility.The current control for detaching membranes are leak testing checks, which were conducted twice by both production and qc inspection.Therefore, the root cause on when or why the membrane detached from the iab cannot be determined, as the current controls show that it cannot have happened during the manufacture of the device; the device is determined to have failed only after leaving the manufacturing facility.A lot history record review was completed for the reported product.No nonconformances were found that are considered to be related to the event.Reference complaint # (b)(4).
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