Qn#(b)(4).The customer returned one, 4-l cvc catheter for analysis.Signs-of-use in the form of biological material was observed inside the extension lines.After failing functional testing (see below), a hole was observed on the medial 2 (blue hub) extension line.The appearance of the hole is semi-circular and seems consistent with damage due to contact with sharps.Microscopic examination confirmed the damage and revealed that the edges were smooth and uniform.This further supports that contact with sharps caused or contributed to this event.The hole in the medial 2 extension line measured 13mm from the juncture hub.The catheter body from the juncture hub to the distal tip measured 217mm which is within the specification limits of 207mm-227mm per the catheter graphic.The medial 2 (blue hub) extension line outer diameter measured 2.195mm which is within the specification limits of 2.130mm-2.210mm per the medial 2 extension line extrusion graphic.The medial 2 (blue hub) extension line inner diameter measured 1.473mm which is within the specification limits of 1.420mm-1.500mm per the medial 2 extension line extrusion graphic.A lab inventory syringe filled with water was attached to the medial 2 (blue hub) extension line.The syringe was compressed, and water was observed leaking out of a hole on the extension line.Performed per ifu statement "check lumen patency by attaching a syringe to each extension line and aspirate until free flow of venous blood is observed".No other leaks or defects were observed when flushing the other extension lines.A manual tug test confirmed that the extension lines were secure within the respective luer hubs.The customer did not provide a lot number; therefore, a device history record review was performed based upon a lot number from the sales history data of the customer.No relevant findings were identified.The ifu provided with the kit informs the user, "do not secure, staple and/or suture directly to outside diameter of catheter body or extension lines to reduce risk of cutting or damaging the catheter or impeding catheter flow.Secure only at indicated stabilization locations".The report of a leaking extension line was confirmed through complaint investigation.Visual and functional testing revealed that the medial 2 (blue hub) extension line contained a hole directly adjacent to the juncture hub.The appearance of the hole seems consistent with damage due to contact with sharps.Despite the damage, the catheter met all relevant dimensional requirements, and a device history record review was performed based on a potential lot with no relevant findings.Based on the customer report and the sample received, unintentional use error likely caused or contributed to this event.Teleflex will continue to monitor and trend for reports of this nature.
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