Qn# (b)(4).The customer returned multiple components of a cvc kit, including one arrow raulerson syringe (ars) and guide wire assembly.No definite signs of use were observed.Initial visual examination of the ars did not reveal any anomalies or defects.After performing functional testing (see below) the ars was opened to further inspect the valves.A hole was observed on the center of the proximal valve of one of the returned syringes.Similarly, a circular dent was observed on the center of the distal valve.The returned sample was functionally tested using a lab inventory 18 ga introducer needle in accordance with the instructions for use provided with this kit.The ifu states, "insert introducer needle or catheter/needle with attached syringe or arrow raulerson syringe (where provided) into vein and aspirate." the ars was not able to properly draw and aspirate water with or without the introducer needle.The module requirement document for raulerson syringes (amrq-000113 rev 3) was reviewed to determine requirements for air/water leakage.The document notes a deviation from iso 7886-1: "the freedom of air and liquid leakage past the piston requirement is design restrictive and is intended for an injection-intended syringe, not the ars.The opening in the center of the piston that allows passage of the inner cannula prohibits the ars from meeting the pressure and vacuum requirements as dictated by the standard.However, because the intended use of the ars is to allow aspiration of blood to ensure venous placement of the introducer needle and to aid in the insertion of the spring wire guide, the leakage requirements of a standard syringe are not applicable to the ars." a vacuum test was performed on the ars syringes in order to verify that the internal valves within the plunger body were intact.With the plunger body at the bottom of the syringes, the tip of the ars was occluded, and the plunger was pulled back until it stopped.With the tip of the arss still occluded, the plunger was released and the ars did not snap back into a position = 1cc from the starting position for the returned syringe.Therefore, the internal valves of the ars were not functioning as intended.The customer report of an ars leak was confirmed through complaint investigation of the returned sample.A hole was observed in the proximal valve of the returned ars.Based on these circumstances, the probable root cause is manufacturing related.This issue was investigated under a capa.The relevant lots for this complaint were manufactured (june 2022) prior to the capa implementation (july 2022).Teleflex will continue to monitor and trend for complaints of this nature.
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