(b)(4).The customer returned one spring wire guide (swg), ars and lidstock for evaluation.Signs of use in the form of biological material were found on the swg.No needle was returned for evaluation.Visual inspection of the swg reveal three minor bends in the body.Microscopic examination confirmed the distal and proximal welds were present and spherical.Visual inspection was not able to be performed on the complaint introducer needle as one was not returned.The bends in the guide wire body measured 155 mm, 410 mm, and 574 mm, from the proximal end.The total length of the swg measured 603 mm, which is within specifications of 596-604 mm.The outer diameter of the swg measured 0.801 mm, which is within specifications of 0.788-0.826 mm per.The swg was functionally tested per the instructions for use (ifu).The ifu provided with this kit states, "advance swg into arrow raulerson syringe approximately 10 cm until it passes through syringe valves or into introducer needle." the returned swg was able to pass through the returned ars and a lab inventory needle with no issues.Functional testing was not able to be performed on the complaint introducer needle as one was not returned.A manual tug test confirmed the distal and proximal welds were secure.A device history record review was performed, and no relevant findings were identified.The ifu provided with this kit warns the user, "do not apply undue force on guidewire to reduce risk of possible breakage." the complaint of swg/needle resistance was not able to be confirmed through a complaint investigation of the returned sample because the needle was not returned.The returned swg was found to have three minor bends in its body.Despite the damage, the swg was able to pass all relevant dimensional and functional testing.Based on the sample returned, a root cause could not be determined without the needle returned.Teleflex will continue to monitor and trend on complaints of this nature.
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