Qn#(b)(4).Returned for investigation was a 30cc 7.5fr ultraflex intra-aortic balloon catheter (iabc) without the original packaging.Upon return, the peel away sheath was noted connected to the hemostasis cuff.The one-way valve was tethered to the short driveline tubing.The bladder was fully unwrapped.A bend to the iabc central lumen was noted at approximately 29cm from the iabc distal tip.Dried blood was noted on the exterior surfaces of the returned sample.No obvious blood was noted within the helium pathway.The one-way valve was tested and passed.A vacuum was pulled on the one-way valve, and it held for at least 1 minute and then 30 seconds five separate times.An attempt to aspirate and flush the iabc central lumen using a 60cc lab-inventory syringe was unable to be successfully completed.Upon aspiration, water was unable to be consistently pulled into the syringe.The iabc was leak tested and an external leak was immediately noted and located around the bifurcate bushing bond.Upon further inspection, the leak occurred from the adhesive bond at the bifurcate bushing.No other leaks were detected.A lab inventory 0.025in guidewire was back loaded through iabc distal tip.No resistance was noted; the guidewire was able to advance through the central lumen.No blood or debris was noted on the guidewire upon removal.The guidewire was front loaded through the iabc luer.No resistance was noted; the guidewire was able to advance through the central lumen.No blood or debris was noted on the guidewire upon removal.An attempt to aspirate and flush the catheter using a 60cc lab inventory syringe was unable to be successfully completed before inserting the guidewire.Another attempt to aspirate and flush the catheter was successfully completed.A device history record (dhr) review was conducted for the lot number with no relevant findings.The device passed all manufacturing specifications prior to release.The reported complaint for iab leak suspected is confirmed.During the investigation, an external leak was confirmed from the intra-aortic balloon catheter (iabc) bifurcate bushing adhesive.Based on a review of the device history record (dhr), the product met specification upon release; however, the specifications were not met during the complaint investigation due to the external leak from the iabc bifurcate bushing adhesive.The probable root cause is manufacturing related.A non-conformance has been initiated to further investigate the issue.
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