(b)(4).The actual complaint device was available and returned to the manufacturer for physical evaluation.A visual examination of the returned device found that the taper of the patient connector of the arterial line is bent.Also, the patient end connector was connected to a fistula connector and was observed that the taper of the patient connector does not fit into the end.No damages or excess of solvent was observed on the connector that may be attributed to the bent taper.In addition, a functional test was performed to examine the pressure of the system under water while air is introduced under pressure of 15 psi for a period of ten minutes.During the test air bubbles were noted on the patient end connector as stated in the complaint, and a leak was noted.A records review was performed on the reported lot.An investigation of the device manufacturing records was conducted by the manufacturer.There were no deviations or non-conformances identified during the manufacturing process which could be associated with the reported event.In addition, the batch record review confirmed the labeling, material, and process controls were within specification.The lot passed all release criteria.The investigation into the cause of the reported problem was able to confirm the failure mode.A visual evaluation revealed that the patient connector of the arterial line was bent which resulted in the reported leak.Therefore, the complaint has been deemed confirmed.
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A user facility reported that air was introduced into the system upon initiation of the patient's hemodialysis (hd) treatment.Upon examination of the bloodline, the arterial line luer was noted as not locking/screwing on properly resulting in the observed condition.However, there was no visible damage to the bloodline or luer lock.The machine alarmed for "air detector" and the hemodialysis nurse discontinued the treatment.The defective circuit was removed from the machine and a new circuit was setup on the same machine.The patient was able to successfully complete the hd therapy with no further issues.The patient's estimated blood loss (ebl) was noted as being approximately 250ml.There were no patient adverse effects and no medical intervention was required as a result of this event.The complaint device is available to be returned to the manufacturer for evaluation.
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