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(b)(4).The customer returned one, opened cvc kit for analysis.No obvious signs of use were observed on the guide wire.It was noted that the introducer needle involved with this complaint was not returned.Visual analysis revealed that the guide wire was kinked towards the distal end.The kinking resulted in the distal j-bend to be slightly misshapen.Microscopic examination confirmed the damage and revealed that the distal and proximal welds were secure and intact.Visual analysis could not be performed on the introducer needle involved with this complaint as it was not returned.The kinks in the guide wire were located 433mm from the proximal tip.The overall length of the guide wire measured 456mm, which is within the specification of 449.2mm-458mm per the guide wire product drawing.The outer diameter of the guide wire measured 0.440mm, which is within the specification of 0.432mm-0.457mm per guide wire product drawing.Dimensional analysis could not be performed on the introducer needle involved with this complaint as it was not returned.The returned guide wire was inserted through a lab inventory 21ga introducer needle.Resistance was encountered at the location of the kinking; however, all functional sections of the guide wire passed with little to no difficulty.Performed per ifu statement, "advance guidewire into arrow raulerson syringe approximately 10 cm until it passes through syringe valves or into introducer needle".Functional analysis could not be performed on the introducer needle involved with this complaint as it was not returned.A manual tug test on the guide wire confirmed that the distal and proximal welds are secure and intact.A device history record review was performed on the guide wire, and a finding was identified; however, it could not be confirmed if the finding was relevant.The ifu provided with the kit informs the user, "do not use excessive force when introducing guidewire or tissue dilator as this can lead to vessel perforation, bleeding, or component damage".The report that the guide wire kinked during use was confirmed through examination of the returned sample.The guide wire was kinked towards the distal j-bend.The returned guide wire met all relevant dimensional and functional requirements.Despite the damage, without the introducer needle involved with this complaint also returned for analysis, the root cause cannot be determined at this time.Teleflex will continue to monitor and trend for reports of this nature.
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