A visual and dimensional inspection was performed on the returned device.The reported difficult to advance and difficult to remove could not be tested due to the device condition.The reported material separation was confirmed.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history of the reported lot did not indicate a lot specific quality issue.The investigation was unable to determine a conclusive cause for the reported difficulties; however, the reported treatment appears to be related to operational context.In this case, analysis of the returned device noted the guide wire was kinked in the shaping ribbon and there were stretched coils at the kink.The stretched coils indicate manipulation against resistance.It is possible that the guide wire became damaged during use, resulting in the kink.The kink possibly contributed to the noted resistance during advancement and removal, resulting in the noted stretched coils.Manipulation of the guide wire, when resistance was encountered, possibly contributed to the reported material separation.This is supported by the return analysis, which discovered the fracture face of the separation to be bent and jagged.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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