The energy treatment instrument includes a first gripping piece and a second gripping piece which is opened and closed between the first gripping piece and grips a blood vessel between the first gripping piece and the first gripping piece. Wherein the energy treatment tool has a first mode in which the blood vessels of the systemic circulation system are coagulated according to the type of the blood vessel gripped between the first gripping piece and the second gripping piece, And a second mode in which the blood vessels of the pulmonary circulation system are coagulated unlike the mode 1, the operating state is switched.エネルギー処置具は、第1の把持片と、前記第1の把持片との間が開閉し、前記第1の把持片との間で血管を把持する第2の把持片と、を備える。前記エネルギー処置具は、前記第1の把持片と前記第2の把持片との間で把持される前記血管の種類に応じて、体循環系の血管を凝固させる第1のモードと、前記第1のモードとは異なり肺循環系の血管を凝固させる第2のモードと、の間で作動状態が切り替えられる。
