It was reported that the procedure was performed to treat a lesion in the right coronary artery (rca).The patient anatomy included previously implanted stents with in-stent restenosis.The dragonfly opstar imaging catheter was advanced over the balance middleweight (bmw) guide wire.The dragonfly opstar was used without issue and after imaging was performed, an attempt was made to remove; however, the bmw guidewire was also removed.The physician had not intended to remove the guidewire, and upon removal, it was noted that the end of the bmw was angulated and mangled.There was no resistance noted during removal of the dragonfly opstar and bmw guide wire, but the devices were entangled.The physician rewired the vessel with a new bmw guidewire and the procedure was continued and completed.There was no adverse patient effect and no clinically significant delay.No additional information was provided.
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Visual analysis, additional testing methods, and dimensional analysis were performed on the returned device(s).The reported difficulty removing the catheter from the guidewire was unable to be confirmed due to the returned condition of the device (stuck on damaged guidewire); however, there was damage observed to the returned catheter which is consistent with the reported event.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.A query of the complaint handling database for the reported lot was performed and revealed there is no indication of a lot level quality product issue.The investigation determined that the difficulty removing the catheter from the guidewire was likely related to operational context.It is likely that the guidewire being used became damaged due to operational context (patient conditions, use technique, external interactions, etc.), which then caused the difficulty removing the catheter from the guidewire.The difficulty removing the catheter from the guidewire caused the distal end of guidewire exit port to tear.While the reported withdrawal issue could not be conclusively determined, it is likely that either the patient¿s anatomical condition(s) or guidewire damage caused the reported issue.The window tube was also noted to be kinked and stretched longitudinally.The catheter was also noted to be bent at the edge of the catheter¿s distal tip.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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