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(b)(4).The customer returned one, opened cvc kit for analysis.The guide wire assembly, the arrow raulerson syringe (ars), and the 18ga introducer needle will be analyzed as part of this complaint.The guide wire was returned inserted through the ars/introducer needle subassembly.Signs-of-use in the form of biological material were observed on the guide wire.Reference inp1900115860 for im-age of the sample received.Visual inspection revealed the guide wire was unraveled from the distal end.The unraveled portion was lodged inside the needle cannula and could not be easily removed; however, the guide wire appeared to move freely inside the ars.Slight force was required to free the unraveled portion from the cannula.Once dislodged, large quantities of congealed biological material were observed on the coils of guide wire.The broken core wire measured 601mm, which is within the specifications of 596-604mm per product drawing.The guide wire outer diameter (od) measured 0.793mm which is within the specifications of 0.788-0.826mm per product drawing.After removal of the guide wire, the inner diameter of the cannula measured 0.041", which is within the specification limits of 0.041"-0.043" per the cannula product drawing.The guide wire was removed from the needle cannula.The functional end of the guide wire was inserted through the cannula and no resistance was observed.Performed per the ifu statement, "advance guidewire into arrow raulerson syringe approximately 10 cm until it passes through syringe valves or into introducer needle".A manual tug test confirmed the proximal weld was intact.A device history record review was performed with no relevant findings.The ifu provided with the kit informs the user, "do not apply undue force on guidewire to reduce risk of possible breakage".The ifu also states, "do not withdraw guidewire against needle bevel to reduce risk of possible severing or damaging of guidewire".The report that the guide wire unraveled was confirmed through examination of the returned sample.The core wire was broken adjacent to the distal weld and the components were returned with the guide wire partially advanced through the introducer needle.No manufacturing defects were found during this investigation.Arrow guide wires of this size are designed and manufactured to withstand a tensile force of 2.75 pounds force.This internal specification is higher than the bs en iso 11070:2014 standard of 2.2 pounds force for this size wire.The selected insertion site and patient anatomy may present a tortuous path-that could contribute to the difficult advancing the guide wire.Based on these circumstances, unintentional use error caused or contributed to this event.Teleflex will continue to monitor and trend for re-ports of this nature.Corrected data: section d.4.Unique identifier (udi)# corrected to (b)(4).
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