Qn# (b)(4).The customer returned one endurance catheter for evaluation.Visual inspection of the endurance catheter revealed the catheter body contained two kinks near the juncture hub and contained a tear in the second kink.The kinks in the catheter were located at 2 mm and 8 mm from the juncture hub.The total length of the catheter body measured 2.5625" which is within specifications of 2.554-2.564" per catheter body drawing.The outer diameter of the catheter body measured 0.03595" which is within specifications of 0.0335-0.0375" per catheter body graphic.The inner diameter of the catheter tip measured 0.022", which is within specifications of 0.0185-0.0225 per catheter graphic.Functional inspection was performed per the instructions for use (ifu).The ifu provided with this kit states, "engage extension line clamp and remove the vent plug from catheter extension line luer hub, attach a 10 ml syringe filled with normal saline for injection, unclamp and check for brisk free-flowing blood return, flush, and reengage extension line clamp." the endurance catheter was connected to a lab inventory water-filled syringe.When the catheter was flushed, water passed through the catheter body and exited out of the distal end and through the tear in the kink near the juncture hub.The manufacturing facility has been previously contacted as part of this complaint investigation.It was stated that in-process inspection includes 100% leak testing of molded pieces to verify catheter structural integrity.The ifu provided with this kit warns the user, "do not force catheter if resistance is encountered during advancement.Do not apply tape, staples, or sutures directly to the catheter body to reduce risk of damaging catheter, impeding catheter flow, or adversely affecting monitoring capabilities.Secure only at indicated stabilization locations." the report of a cut/tear in an endurance catheter was confirmed through complaint investigation.Visual and microscopic examination revealed that the catheter body contained two kinks and a tear in the kink adjacent to the juncture hub.The damage observed was consistent with the device being kinked at the insertion site , which caused a weakening in the material extrusion.Despite the damage, the catheter met all relevant dimensional and functional requirements.Manufacturing engineers have previously been consulted, and stated that this product undergoes in-process inspection which includes 100% leak testing of molded pieces prior to release.Based on the customer report that the defect was observed during use and the appearance of the damage on the returned device, 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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