Qn# (b)(4).The reported complaint that the "front end of the catheter is folded and cannot insert" was confirmed upon investigation of the returned sample.The customer returned a 40cc 7.5fr ultraflex intra-aortic balloon catheter (iabc) without the original packaging for investigation.The sample was returned in a cardboard box and was in a clear pouch (inp-1, inp-2).Upon return, the one-way valve was tethered to the short driveline tubing (inp-6).The bladder was fully unwrapped (inp-7).Numerous bends to the iabc central lumen were noted at approximately 5.5cm, 11.6cm, 25cm, 35.3cm and 74.5cm from the distal tip (inp-8 through inp-12).No blood was noted on the exterior surfaces of the returned iabc; no blood was noted within the helium pathway.The bladder thickness was measured at six points with measurements ranging from 0.0054in-0.0061in and was within specification of process document.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 according to quality system document.An attempt to aspirate and flush the catheter using a 60cc lab-inventory syringe was unable to be successfully completed due to a blocked central lumen.Immediate push back on the syringe plunger was experienced.The blockage was most likely dried blood.The iabc was leak tested in accordance with testing methods from manufacturing procedure.No leaks were detected.Full inflation was achieved.The device passed the leak test.A lab inventory 0.025in guidewire was back loaded through the iabc distal tip.Resistance was noted at approximately 4.8cm, 7.4cm, 10.6cm, 23.4cm, 37.3cm, 42.1cm, 60cm and 73.9cm from the iabc distal tip.The guidewire was able to advance through the central lumen with force required.Blood clot exited with the guidewire.The guidewire was front loaded through the iabc luer.No resistance was noted; the guidewire was able to advance through the central lumen.Blood noted on the guidewire.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, after clearing blood clot from the central lumen during the guidewire test.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 bent central lumen.The root cause of the complaint was undetermined.No further action required at this time.Teleflex will continue to monitor and trend for reports of this nature.Other remarks: n/a.Corrected data: n/a.
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