(b)(4).Returned for investigation was a 40cc 8.0fr rediguard intra-aortic balloon catheter (iabc) without the original packaging.Upon return, the bladder was noted fully unwrapped.A teflon sheath was noted on the returned iabc; the teflon sheath body/extrusion was noted cut near the teflon sheath hub and the remaining length of the teflon sheath body/extrusion was not returned with the sample.The distal end of the cut sheath was noted at approximately 32cm from the iabc distal tip; the teflon sheath hub appeared typical.Kinks were noted to the central lumen at approximately 30cm and 76.2cm from the iabc distal tip.Dried blood was noted on the exterior surfaces of the returned sample.A small amount of dried blood was noted within the helium pathway.A dried orange media was noted on the exterior surfaces of the returned sample.The one-way valve and one-way valve tether were not returned with the sample.The one-way valve was not returned with the sample; therefore, it could not be tested.The iabc central lumen was aspirated and flushed using a 60cc lab-inventory syringe.Some blood was noted.The iabc was leak tested and a small leak was immediately detected from the iabc distal tip and iabc luer end.The leak from the iabc distal tip and iabc luer end is consistent with a crossover site between the central lumen and helium pathway.Upon further inspection, the crossover leak site was confirmed at the kink/damaged central lumen at approximately 76.2cm from the iabc distal tip.The iabc was leak tested again with the iabc distal tip and iabc luer end blocked off; no other leaks were detected.A lab inventory 0.025in guidewire was back loaded through the iabc distal tip.Resistance was noted at approximately 30.1cm and 76.1cm from the iabc distal tip, which are the locations of the previously noted kinks.The guidewire was able to advance through the central lumen.No blood or debris was noted.The guidewire was front loaded through the iabc luer.Resistance was noted at approximately 8.7cm and 54.8cm from the iabc luer, which are the locations of the previously noted kinks.The guidewire was able to advance through the central lumen.No blood or debris was noted.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 of iab blood in helium pathway is confirmed.During the investigation, a crossover leak was confirmed between the central lumen and helium pathway, which can cause blood to enter the helium pathway.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 crossover leak.The root cause of the complaint is undetermined.No further action required at this time.This will be monitored for any developing trends.Other remarks: n/a.Corrected data: n/a.
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