Reportable based on device analysis completed on 27 nov 2018.It was reported that shaft kink occurred.The 100% chronic total occlusion target lesion was located in the right coronary artery.A 2.50mm x 15mm emerge balloon catheter was advanced but the delivery shaft got kink.The procedure was completed with another of the same device.No patient serious injury or adverse event were reported and the patient's status was stable.However, returned device analysis revealed shaft detached/separated.The outer shaft, inner shaft, balloon and tip were visually and microscopically examined.Visual examination revealed a kink 10.6cm from the hub.Microscopic examination revealed that the shaft appears to have been twisted and stretched prior to separation.The shaft is separated 126.2cm from the hub.The entire guidewire lumen, distal inflation lumen, exit notch, balloon, marker bands, and tip are all missing.Inspection of the remainder of the device presented no other damage or irregularities.Product analysis confirmed there is a kink in the shaft.
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