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Additional information: a second wire guide was used in the procedure; however, it also unraveled.This event has been reported under mw# 1820334-2017-04162.Investigation - evaluation: a review of dimensional verification, complaint history, device history record, documentation, drawings, instructions for use(ifu), manufacturing instructions, specifications, quality control data and visual inspection of the returned device was conducted during the investigation.Visual inspection and functional testing of the returned device were performed.It appeared to be an uncoated wire and was unraveled at the solder joint approximately 59 cm from the proximal end of the wire guide.The distal weld was still intact with the coils but the mandril was not attached.A document-based investigation was performed.There is no evidence to suggest the finished product was not made to specifications.Review of the device history record of the finished product shows no nonconforming events that would contribute to this failure mode.There were no other reported complaints for this lot number.The ifu instructs to withdraw the provided needle before withdrawing the wire guide.The customer stated the wire had been withdrawn through the 21g needle in the picc kit.Based on the information provided, examination of the returned product, and the results of our investigation; the root cause was determined to be product use/handling related- did not follow instructions/label, as the customer did not follow instructions and withdrew the wire guide through the needle.We have notified the appropriate personnel and will continue to monitor for similar events.
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