(b)(4).The customer returned one 3-l cvc for evaluation.Signs of use were observed on the catheter and inside the extension lines.Visual inspection of the catheter revealed no obvious defects or anomalies.The catheter body length measured 320mm, which is within the specifications of 307-327mm per catheter product drawing.The medial extension line outer diameter measured 2.145mm, which is within the specifications of 2.13-2.21mm per the medial extension line extrusion product drawing.The medial extension line inner diameter measured 1.4732mm, which is within the specifications of 1.42-1.50mm per the medial extension line product drawing.This indicates that the wall thickness measured within specifications.Functional inspection of the catheter was performed according to the product ifu) , which states "flush each lumen with sterile normal saline for injection to establish patency and prime lumen (s)." all extension lines were flushed using a lab inventory 10cc syringe.All lumens flushed as expected.No leaks or blockages were observed in any of the extension lines.A manual tug test confirmed all extension lines were secure to their respective luer hubs.A device history record review was performed with no relevant findings.The instructions for use (ifu) provided with this kit warns 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 customer report of a blocked extension line could not be confirmed through complaint investigation of the returned sample.The returned catheter met all relevant functional and dimensional requirements, and no leaks or blockages were observed in any of the extension lines.A device history record review was performed with no relevant findings.Based on these circumstances, no problem was found with the returned sample.Teleflex will continue to monitor and trend for complaints of this nature.
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