DENERVATION CATHETER

Disclosed is a catheter which has a simplified structure and is easy to be downsized. The catheter elongates in one direction and has a proximal end and a distal end, and includes a first support member located near the distal end of the catheter and having a first hollow with both open ends; a second support member located near the proximal end of the catheter in comparison to the first support member and having a second hollow with both open ends; an operating tube configured to elongate in one direction and having a third hollow with both open longitudinal ends, the operating tube 10 being inserted into the first hollow and the second hollow and fixed to the first support member or the second support member to move the first support member or the second support member in a longitudinal direction; at least one connection member having one end connected to the first support member and the other end connected to the second support member, wherein when a distance between the first support member and the 15 second support member decreases, at least a part of the connection member is bent so that the bending portion becomes away from a central axis of the third hollow; at least one electrode provided at the connection member to generate heat; and a shaft body located near the proximal end of the catheter in comparison to the second support member to elongate in one direction, the shaft body having a fourth hollow with both open 20 longitudinal ends so that the operating tube is inserted therein and movable in the longitudinal direction. 51