Patent ID: 11980378

Abstract:
A device includes: a sheath; an operating wire disposed inside the sheath; a grasping part that is provided at a distal end of the operating wire and that has one or more wires; and a bipolar electrode disposed at a distal end of the sheath. The sheath has, at intervals in the circumferential direction, escape grooves that extend from the distal end toward a proximal end of the sheath, that penetrate from an inner circumferential surface to an outer circumferential surface thereof, and that have such dimensions as to allow the wires to pass therethrough. The bipolar electrode is disposed at a position shifted radially outward from the central axis and at a position between two of the escape grooves in the circumferential direction. The distal end of the bipolar electrode is positioned closer to distal ends of the escape grooves than to proximal ends of the escape grooves.