(b)(4).The customer returned one 3-lumen cvc for investigation.Visual inspection revealed the distal extension line was separated directly adjacent to the luer hub.Remains of the extension line were found inside the luer hub.The catheter body appeared intentionally trimmed.The separated portion was not returned.The total length of the catheter body measured to be 291 mm which indicates that at least 19 mm of the catheter body was not returned per product drawing.The outer diameter of the distal lumen measured to be 2.17 mm which is within specifications of 2.13-2.21 mm per product drawing.The inner diameter of the distal lumen measured to be 1.47 mm which is within specifications of 1.42-1.50 mm per product drawing.This indicates that the wall thickness measured within specifications.The catheter was functionally tested per the instructions for use (ifu).The ifu provided with this kit instructs the user, "flush each lumen with sterile normal saline for injection to establish patency and prime lumen(s)." the proximal and medial lumens were flushed using a water-filled lab inventory syringe.Biological material exited both lumens.After the build-up of biological was removed , both lumens flushed as expected.A manual tug test confirmed the proximal and medial extension lines were fully secured within the 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 apply excessive force in placing or removing catheter or guidewire.Excessive force can cause component damage or breakage.If damage is suspected or withdrawal cannot be easily accomplished, radiographic visualization should be obtained and further consultation requested.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.Open slide clamp prior to infusion through lumen to reduce risk of damage to extension line from excessive pressure." the report of an extension line/luer hub separation was confirmed through complaint investigation.Visual analysis revealed that the distal extension line had separated adjacent to the luer hub.It was noted that remains of the extension line were found within the luer hub.A capa has previously been initiated due to an increasing trend of cvc extension line leaks and separations.The root cause of this issue has not yet been determined.Teleflex will continue to monitor and trend complaints of this nature.
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