Qn#(b)(4).Device evaluation: the report that the guide wire kinked during insertion was confirmed.One 3-lumen 7fr x 30 cm catheter with a guide wire inserted through it, and several other components, were returned.Additionally, the customer provided two photographs showing the returned components inside a plastic bag.The proximal end of the guide wire was unraveled.The distal (j-tip) end of the guide wire was protruding 2.5 cm beyond the catheter tip and was intact.The guide wire was removed from the catheter.A manual tug test determined that distal weld is intact with the core wire.Kinks were observed in the catheter body located 6 and 20 cm from the proximal weld.Microscopic inspection determined that the core wire was broken adjacent to the proximal weld.The guide wire graphic specifies an outside diameter of.788/.826 mm and a length of 683 +/-4 mm.The guide wire length was confirmed to be consistent with the graphic.The outside diameter measured.804 mm, which met specification.No defects or anomalies were observed on the catheter.A lab inventory.032" guide wire, with a measured diameter of.795 mm, was passed through the distal lumen of the catheter without resistance.Other remarks: the instructions for use describes suggested techniques to minimize the likelihood of guide wire damage during use.The selected insertion site and patient anatomy may present a tortuous path that could contribute to the possibility of guide wire kinking.Guide wire breakage may occur if a force greater than the design specification is applied during removal.The device history records for the guide wire and catheter were reviewed and did not reveal any manufacturing related issues.Based on these circumstances, operational context caused or contributed to the event.No further action will be taken.
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