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(b)(4).Returned for investigation was a 40cc 7.5fr ultraflex intra-aortic balloon catheter (iabc) without the original packaging.Upon return, there was damage immediately noted to the iabc outer lumen, central lumen and distal tip.The outer lumen was noted damaged and unraveled from the iabc luer end.The iabc central lumen was noted broken within the flex-tip assembly area and damaged within the bladder area.The wire round/polyimide (part of the flex tip assembly) was noted no longer attached to the inner cannula (iabc central lumen).During visual inspection, it was noted that the iabc distal tip was separated and no longer attached to the central lumen.A supplied 40cc inflation driveline was connected to the iabc; some specs of dried blood were noted within the tubing.The one-way valve was tethered to the short driveline tubing.The bladder was fully unwrapped.Buckling to the teflon sheath extrusion was noted approximately from the distal end of the teflon sheath.Bends to the iabc were noted at the iabc luer end.A dried yellow media was noted on the exterior surfaces of the iabc.Dried blood was noted on the exterior surfaces and within the helium pathway.The bladder thickness was measured at six points.The one-way valve was tested and failed.A vacuum was pulled on the one-way valve, and it immediately lost pressure.This was repeated five separate times.Dried blood was noted within the one-way valve upon cleaning.The one-way va lve was properly cleaned and tested again; the one-way valve 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 catheter using a syringe was unable to be successfully completed and pushback to the syringe was noted; the central lumen was likely blocked by dried blood.Due to the returned state of the device, functional leak testing was unable to be performed.As a result, the bladder was closely inspected.During inspection, abrasions were observed from the iabc distal tip.A full thickness abrasion could not be detected during inspection but cannot be ruled out.A guidewire was back loaded through the iabc distal tip.The guidewire exited the distal tip and entered the bladder.No blood or debris was noted.The guidewire was front loaded through the iabc luer.Resistance was noted at the iabc luer.The guidewire exited the central lumen and entered the bladder at the location of the damaged central lumen, while excreting blood within the bladder membrane.Blood was also noted on the guidewire.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 based on visual inspection.Upon return, there were various damages to the central lumen/distal tip and damage to the outer lumen.The intra-aortic balloon catheter (iabc) bladder was also noted with abraded areas, consistent with repeated contact with calcified plaque on the aortic wall.Due to the combined damages and returned state of the device, it could not be confidently determined which damage occurred first or what initially caused the complaint.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 blood in the helium pathway.The root cause of how the blood entered the helium pathway 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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