The investigation into this event is still ongoing.Navilyst medical has made, and is continuing to make inquiries of the hospital to determine if the issue of "blood stream infections" actually occurred or is being stated as a potential concern.Upon completion of the investigation, a supplemental medwatch will be submitted.(b)(4).
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A review of the device history records was performed for the indicated packaging and component lots for any deviations related to the reported defect of the complaint.The review confirms that the lots met all material, assembly and performance specifications.The (b)(4) june 2015 complaint report was reviewed for the bioflo picc product family and the failure mode "hub extension tubing cracked/detached." no adverse trends were indicated.Returned for evaluation was a non-valved bioflo picc, not an xcela picc, as originally reported.The extension tube with the white clamp was confirmed to have a fracture at the molded luer-to-hub interface.The fracture was approximately 1/2 of the circumference of the hub.No molding-related non-conformances were noted, e.G., no sink marks, short shots or heat damage.The hub-to-extension tubing junction was measured and found to meet id specification.Additionally, the tubing was cross-sectioned, measured, and found to meet id and od specifications and not show any wall thickness abnormalities.Although a definitive root cause for the failure is unable to be determined, a potential root cause is believed to be erosion of the tubing due to prolonged exposure to alcohol and/or a similar cleansing agent.Extended chemical exposure may weaken the tubing-to-hub joint and make it more susceptible to fracture during handling of the hub/extension tubing during picc access.A contributing factor may also be excessive twisting of the hub-to-extension tubing joint during site cleansing.It was unable to be confirmed with the hospital if there were actual blood stream infections as a result of the extension tubing fracture.This may have been a potential concern, not an actual event.In addition, the medwatch form identified an xcela picc as the device in question but a bioflo picc was returned for evaluation.No clarification from the hospital was received.Manufacturing process controls for the picc device includes a 100% visual inspection of the tubing/luer interface, tensile testing of the molded luer-to-tube connection, a guidewire insertion test for lumen patency, and 100% leak testing.
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