The thermally coagulating incision device 11 includes a gripping portion, a metallic heat generating portion 13 along the longitudinal direction of the grip portion on the surface of the grip portion, and a heat generating portion 13 integrally protruding from the heat generating portion 13 at the distal end side of the grip portion A first current supply unit 41, a second current supply unit 42 integrally protruding from the heat generation unit 13 on the proximal end side of the grip unit, and a second current supply unit 42 between the first current supply unit 41 and the second current supply unit 42 And a third current supply unit 43 integrally protruding from the heat generating unit 13 at the position. The thermal coagulation incision device 11 includes a control unit 16, and the control unit 16 is electrically connected to the first current supply unit 41, the second current supply unit 42, and the third current supply unit 43, respectively. The control unit 16 controls the first current supply unit 41 and the second current supply unit 42, between the first current supply unit 41 and the third current supply unit 43, and between the second current supply unit 42 and the third current It is possible to supply a current to either of the supply section 43.熱凝固切開デバイス11は、把持部と、前記把持部の表面に前記把持部の長手方向に沿った金属製の発熱部13と、前記把持部の先端側で発熱部13から一体的に突出する第1電流供給部41と、前記把持部の基端側で発熱部13から一体的に突出する第2電流供給部42と、第1電流供給部41と第2電流供給部42との間の位置で、発熱部13から一体的に突出する第3電流供給部43と、を備える。熱凝固切開デバイス11は、制御部16を備え、制御部16は、第1電流供給部41、第2電流供給部42、および第3電流供給部43にそれぞれ電気的に接続される。制御部16は、第1電流供給部41と第2電流供給部42との間、第1電流供給部41と第3電流供給部43との間、および第2電流供給部42と第3電流供給部43との間のいずれかに電流を流すことが可能である。
