Qn#(b)(4).Device evaluation: the report that the guide wire kinked during use was confirmed.The customer returned one guide wire and one picc catheter.The returned sample was received with the guide wire inserted through the catheter and protruding from both ends of the catheter.Visual examination revealed that the distal end of the guide wire has multiple kinks and that the guide wire is unraveled from the proximal end.The catheter appeared typical but used.A manual tug test confirmed that the distal weld was intact but the proximal weld was found to be broken.Microscopic examination revealed that the core wire was broken on the proximal end and that necking and discoloration were observed on the end of the core wire.Microscopic examination also revealed that the proximal weld was at the end of the coil wire and both welds of the guide wire were full and spherical.No other damage was observed with either component.The guide wire measured approximately 59.4 cm which was difficult to measure due to the severe kinks but is consistent with the length specifications of 59.6 - 60.4 cm per guide wire graphic.The outside diameter of the guide other remarks: wire measured 0.797 mm, which is within the specification of 0.0.788- 0.826 mm.Per guide wire graphic.The guide wire was removed from the catheter and a 0.032 " lab inventory long pin gage was inserted through the distal lumen without resistance indicating that the catheter was not obstructed.The instructions for use describe suggested techniques to minimize the likelihood of guide wire damage during use.The instructions caution that withdrawing the guide wire against the needle bevel or use of excessive force during removal could damage or break the wire.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.A device history record review was performed and did not reveal any manufacturing related issues.Based on these circumstances, operational context caused or contributed to this issue.No further action will be taken.
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