(b)(4).The customer returned one used spring-wire guide (swg) for evaluation.The catheter was not returned.Visual examination revealed the guide wire body had 3 bends.The j-bend tip was undamaged.Microscopic examination of the guide wire confirmed the bends.Both welds appeared full and spherical.The swg body contained 3 bends which were located approximately 12, 20.3, and 22.3 cm from the proximal end of the swg, respectively.The outer diameter of the guide wire measured 0.847 mm which is within specification.The guide wire overall length was also within specification.A manual tug test confirmed both the distal and proximal welds are intact.A device history record review was performed on the guide wire and catheter and no relevant manufacturing issues were identified.The instructions-for-use (ifu) provided with this product describes suggested techniques to minimize the likelihood of guide wire damage during use.The ifu states that if resistance is encountered when attempting to remove the spring wire guide after catheter placement, the spring wire guide may be kinked about the tip of the catheter within the vessel.In this circumstance, withdraw the catheter relative to the spring wire guide about 2-3 cm and attempt to remove the spring wire guide.If resistance is again encountered, remove the spring wire guide and catheter simultaneously.The reported complaint of catheter/guide wire resistance could not be confirmed by complaint investigation since the catheter was not returned for evaluation.The returned guide wire contained multiple bends.A device history record review was performed with no relevant findings to suggest a manufacturing related issue.Based on these circumstances it was determined that operational context likely contributed to this event.However, the probable cause of guide wire and catheter resistance could not be determined based upon the information provided and without the catheter being returned.Teleflex will continue to monitor and trend for reports of this nature.
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