A review of the complaint history, drawings, device history record, documentation, manufacturing instructions, and visual inspection of the returned devices was performed during the investigation.The visual inspection of two unopened three-way plastic stopcocks was performed.The used, failed device was not returned due to contact with chemotherapy products.A leak test was performed and both devices failed.Also, both devices exhibited a 2mm crack in the base of the device.The device examination for the third device which was received opened is documented under manufacturer report number 1820334-2016-01342.A document based investigation evaluation was also performed.There is no evidence to suggest the product was not made to specifications.Review of device history record shows no nonconforming events which could contribute to this failure mode.It should be noted this is one of two reported complaints for this lot number from the same customer.Based on the information provided and the results of our investigation, there is not enough evidence to confirm a definitive root cause for the reported event.Measures are being conducted to address this failure mode.We will continue to monitor for similar complaints.
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