PROBLEM TO BE SOLVED: To provide a bipolar type high frequency treatment tool for an endoscope, allowing optional and proper control of the opening/closing direction of a pair of high frequency electrodes by smoothly rotating, in a direction around the axis, the high frequency electrodes electrically insulated from each other and provided at the tip of a flexible sheath openably/closably in a beak state such that rotation delay to a rotation operation from the base end side of the flexible sheath does not occur.SOLUTION: An elongated cylindrical torque coil 7 is disposed rotatably in the direction around the axis around a pair of electroconductive operation wires 6, 6 over the full length inside the flexible sheath 1, and the tip of the torque coil 7 is connected to a tip support frame 3. By performing the rotation operation to the torque coil 7 in the direction around the axis from the base end side of the flexible sheath 1, the tip support frame 3 rotates in the direction around the axis in the tip of the flexible sheath 1, so that the opening/closing direction of the pair of high frequency electrodes 2, 2 changes.COPYRIGHT: (C)2013,JPO&INPIT【課題】互いの間が電気絶縁されて嘴状に開閉自在に可撓性シースの先端に設けられた一対の高周波電極を、可撓性シースの基端側からの回転操作に対する回転遅れが発生しないように軸線周り方向にスムーズに回転させて、高周波電極の開閉方向を任意に的確に制御することができる内視鏡用バイポーラ型高周波処置具を提供すること。【解決手段】可撓性シース1内には全長にわたって、細長い円筒状をなすトルクコイル7が、一対の導電性操作ワイヤ6,6を囲んで軸線周り方向に回転自在に配置されて、トルクコイル7の先端が先端支持枠3に連結され、トルクコイル7を可撓性シース1の基端側から軸線周り方向に回転操作することにより、先端支持枠3が可撓性シース1の先端で軸線周り方向に回転して、一対の高周波電極2,2の開閉方向が変化する。【選択図】 図2
