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Investigation ¿ evaluation: a review of the dimensional verification, complaint history, device history record, drawing, instructions for use (ifu), quality control, and specifications was conducted during the investigation, and no issues were found related to the reported issue.The visual inspection of the returned device confirmed that the coil was unraveled at the distal end, starting approximately 105 mm distal to the solder joint with the mandrel.The distal tip of the wire guide was missing, as there was no end weld observed on the distal end of the wire guide.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.The turbo-ject power injectable picc set is supplied with the instructions for use which details the warnings, precautions, and instructions for use for proper and safe use of the device.Regarding the access wire guide (stf), the ifu states; after propping the access site, introduce the access needle into the vessel.Note: the use of ultrasound is helpful to determine suitability for vessel access and patency.The echotip marking on the needle is used to help visualize the tip of the needle during vessel access.Using fluoroscopic guidance, introduce the access wire guide through the needle and advance it 15-20 cm into the vessel.Withdraw the needle, leaving wire guide in place.If necessary, enlarge the puncture site with scalpel blade.Based on the information provided, the examination of the returned product, and the results of our investigation, it is possible that the root cause of this event is procedure related.The wire guide getting "stuck in the soft parts" was possibly caused by the patient's anatomy, and that caused the wire guide to unravel.The subsequent retrieval attempt most likely caused the wire guide tip to fracture.However, a definitive root cause could not be determined at this time.Per the quality engineering risk assessment, no further action is required.Cook medical has notified the appropriate personnel and will continue to monitor this device via the complaints database for similar complaints.
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