It was reported that during chemotherapy infusion, the three-way plastic stopcock leaked from the junction of the stopcock and the hexagonal part of the device while in the off position.Reportedly, the patient did not receive the full chemotherapy prescription due to this occurrence.Additional information regarding patient outcome has been requested, but is not available at this time.
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Investigation ¿ evaluation: a review of the dimensional verification, complaint history, device history record, documentation, manufacturing instructions, quality control, and a visual inspection and functional evaluation of the returned device were conducted during the investigation.Both opened and unopened samples were returned for evaluation.The visual inspection of the returned devices confirmed the presence of leaks in samples in both the opened and unopened product groups which were tested.All but one of the used devices leaked during testing.Cracks were observed to be the cause of the leaks.Additionally, a document based investigation evaluation was performed.There is no evidence to suggest the product was not made to specifications.A review of the device history record showed no nonconforming events which could contribute to this failure mode.It should be noted there were no other reported complaints for this lot number.Based on the information provided, the examination of the returned product, and the results of our investigation, the root cause was determined to be that stopcock stems molded of a particular material have the potential to absorb moisture, resulting in an increase in diameter raising the potential for cracking of the stopcock body.Measures are being conducted to address this failure mode.We will continue to monitor for similar complaints.Per the risk assessment, no further action is required.
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