(b)(4).The customer returned one slic catheter component for analysis.Signs-of-use in the form of biological material was observed on the catheter hub.After failing functional testing, two cracks were discovered on the hub of the slic component.Microscopic examination confirmed the damage.It was noted that the cracks were on opposite sides of the hub and started at the thread.The catheter body from the hub to the distal end measured 7 7/8", which is within the specification limits of 7 1/4"-8" per the catheter graphic.The catheter extrusion outer diameter measured.0925", which is within the specification limits of.090"-.094" per the catheter extrusion graphic.The catheter extrusion inner diameter at the distal end measured.060", which is within the specification limits of.057"-.061" per the catheter extrusion graphic.The inner diameter of the slic hub at the proximal opening measured.169", which is within the specification limits of.168"-.170" per the hub graphic.A lab inventory syringe filled with water was attached to the slic hub and aspirated.Water was observed leaking out of the cracks on the hub.Performed per ifu statement, "hemostasis valve/side port assembly to slic connection and slic to obturator connection must be secured and routinely examined to minimize the risk of disconnection and possible air embolism , hemorrhage, or exsanguination".The ifu provided with the kit informs the user, "to use the slic for intravenous infusion, remove the blue-capped slic obturator by twisting counter clockwise.Hold the infusion port to maintain positive lock to hemostasis valve housing.Pull the slic obturator from the infusion catheter.Immediately attach desired line to luer-lock hub".The report of a cracked luer hub was confirmed through complaint investigation.Visual analysis revealed that the hub of the slic contained two cracks on either side of the hub.Despite the damage, the slic met all relevant dimensional requirements.The appearance of the failure mode appears consistent with damage due to overtightening on the hub.Therefore, the root cause for this complaint is likely user error.Teleflex will continue to monitor and trend for reports of this nature.
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