PROBLEM TO BE SOLVED: To provide a tip loop-type electrode catheter capable of reliably performing potential measurement and cauterization in the state of bringing a plurality of electrodes into soft contact with the affected part.SOLUTION: A tip loop-type electrode catheter includes a loop part 40 that is curved in the state of having a plurality of ring-shaped electrodes 42 arranged at predetermined intervals and subjected to application of a high-frequency current. The plurality of ring-shaped electrodes 42 are arranged in such a manner as to protrude in a star shape in a direction perpendicular to a curved surface of the looped part 40 and a radial outward direction of the curved surface.COPYRIGHT: (C)2014,JPO&INPIT【課題】複数電極が患部に柔らかく接しての電位測定及び焼灼を確実に行うことができる先端ループ型電極カセーターを提供する。【解決手段】所定間隔をあけて配置され高周波電流が印加される複数のリング状電極42を有して湾曲するループ部40を有し、複数のリング状電極42をループ部40の湾曲面に対して垂直方向且つ湾曲面の半径外方向に星形に突出するように配置した先端ループ型電極カセーター。【選択図】図2