A user facility reported that the red clamp on the arterial line would not come undone at the end of a patient¿s hemodialysis (hd) treatment.It was reported that the bloodline appeared to be cross-threaded.There were no visual issues reported on the primary or secondary packaging of the bloodline and no abnormalities observed on the clamp.It was reported that the patient lost a circuit of blood because the clamp was unable to be undone.The patient was able to complete treatment.There were no adverse events, injuries, or the necessity of medical intervention reported.The complaint device was discarded and is not available to be returned to the manufacturer for physical evaluation.
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Plant investigation: as the device was not returned to the manufacturer, a physical evaluation could not be performed.A batch records review was conducted by the manufacturer for the reported lot.There were no non-conformances or abnormalities identified during the manufacturing process which could be associated with the reported event.The entire lot has been sold and distributed.In addition, a device history review was performed and confirmed that the results of the in-progress and final quality control (qc) testing met all requirements.The lot met all specifications for release.A product history review did not reveal a probable cause for the customer complaint.As a physical evaluation could not be performed, a definitive conclusion regarding the reported incident could not be reached and a cause could not be confirmed.Should additional relevant information become available, a supplemental report will be submitted.
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