Investigation: evaluation: a review of the complaint history, device history record, documentation, drawing, instructions for use(ifu), manufacturing instructions, quality control, specifications, as well as a functional test, visual inspection and dimensional verification were conducted during the investigation.One mac loc catheter was returned in unused condition with no surface damage noted on the device.The device was returned with the lac-loc in the locked position.A leak test performed confirmed the presence of a leak between the hub and the connector cap.Tug and twist tests conducted revealed that the proximal assembly was secure.Upon removing the connector cap, the suture string was found normal in the threads.The flare appeared lopsided, but due to compression of the flare within the cap and the potential for damage upon removal, it cannot be determined if the flare was manufactured to specifications.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, a definitive root cause could not be determined.Appropriate measures have been taken to address this failure mode.We will continue to monitor for similar complaints.This report is required by the fda under 21 cfr part 803 and is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement contained herein is intended to be an admission that any cook device is defective or malfunctioned, that a death or serious injury occurred, nor that any cook device caused, contributed to, or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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