The customer reported that, while the neff percutaneous access set was being prepped on the sterile tray, the outer covering of the sheath of the device broke away from the rest of the product later described as the hub fell off.The malfunction occurred prior to use on a patient; accordingly, no patient adverse events resulted as a result of the issue.The customer confirmed that no further complications arose from the device problem.It is unknown if the complaint device is available for return; as of the date of this report, no device has yet been received for evaluation.
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Investigation ¿ evaluation: a review of the complaint history, device history record, drawing, manufacturing instructions, quality control, specifications, and a visual inspection/ dimensional verification/functional test of the complaint device and unused product were conducted during the investigation.Four unopened npas-100-nt sets, one opened but unused sheath, and one open but unused stiffener were returned.Upon removal of the stiffener, no resistance was felt.The white cap on the proximal end of the plastic stiffener was capable of rotating freely.The catheter was separated from the proximal hub and a damaged flare was present.No other surface damage was noted on the stiffener or the catheter.No biomatter was present.Upon opening the unopened devices, each was pull tested.Of the four returned devices, two of the flares separated from the hub and revealed damaged flares.The sheath flares were measured for the two flares that separated.The first flare was out of round.The second flare was out of round.It cannot be determined whether the flares were manufactured out of specification as the flare was likely compressed within the cap and may have been damaged when pulled out.Due to how the sheath and cap interface, it is possible that the sheath becomes deformed during the process of removing the cap.The process of connecting the cap to the sheath is validated, and there exist quality control procedures to check for the security of the fitting between these two parts.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.We cannot confirm whether the out of spec measurements were caused by manufacturing or the interface of the cap and sheath.The appropriate personnel have been notified.We will continue to monitor for similar complaints.Per the quality engineering risk assessment, no further action is required.
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