As for the electrode assembly for the bipolar excision system, being the 1st electrode array which possesses the plural 1st branches, as for each of the aforementioned 1st branch, when there is a structure which is arranged, from the center of 1st array almost it extends to radial, at the same time, being the 1st electrode array which almost possesses the central part of the straight line and the 2nd electrode array which possesses the plural 2nd branches, each of the aforementioned 2nd branch, when there is a structure which is arranged, from the center of 2nd array extends to the distance in radial, at the same time, corresponds to one of the aforementioned 1st branchesBeing almost parallel to the central part, the 2nd electrode array which almost possesses the central part of the straight line, it has with combination.< Selective figure >Figure 6二極切除システム用の電極アセンブリは、複数の第1枝を有する第1電極アレイであって、前記第1枝の各々は、配置された構造にある場合に、第1アレイの中心からほぼ半径方向に延び、かつ、ほぼ一直線の中央部分を有する第1電極アレイと、複数の第2枝を有する第2電極アレイであって、前記第2枝の各々は、配置された構造にある場合に、第2アレイの中心から半径方向に遠くに延び、かつ、前記第1枝の1つに対応する中央部分にほぼ平行でほぼ一直線の中央部分を有する第2電極アレイと、の組み合わせで備える。【選択図】図6
