To effectively suppress a trouble of an apparatus due to suction failure or the like by effectively suppressing clogging of a suction electrode cord.SOLUTION: The electrotherapy apparatus comprises suction electrodes connected to a body via suction electrode cords 11, and conduction parts and moisture adsorption bodies disposed at the suction electrodes. Each suction electrode cord 11 includes: an electric signal line 1 for supplying electric power that is supplied by a power supply part disposed on the body, to the conduction part； and a tubular hollow part 5 for adsorbing the suction electrode onto the surface of a patient by suction force that is supplied by a suction supply part disposed on the body. The electric signal 1 line is buried in an outer coat 2 forming the tubular hollow part 5, where a minimum curvature radius in the whole circumference of the outer coat 2 is provided within an angle of 45° from a central point of the hollow part 5 in a vertical cross section in the longitudinal direction of the suction electrode cord 11, in a direction of viewing a buried position of the electric signal line 1 such that, when the outer coat 2 is worn down by abrasion, the hollow part 5 is exposed earlier than the electric signal line 1.SELECTED DRAWING: Figure 4【課題】電気治療器における吸引導子コードの目詰まりを効果的に抑制し、吸引不良等による機器の不具合を効果的に抑制する。【解決手段】吸引導子コード１１を介して本体に接続される吸引導子と、前記吸引導子に配された導電部及び吸湿体とを有し、吸引導子コード１１は、本体に配された電力供給部で供給された電力を導電部に供給するための電気信号線１と、本体に配された吸引供給部で供給された吸引力により吸引導子を患者の表面に吸着させるため管状の中空部５を備え、電気信号線１は、管状の中空部５を形成する外皮２に埋設されるとともに、外皮２の磨耗による磨り減り時に、電気信号線１より先に中空部５が露出するように、吸引導子コード１１の長手方向の垂直断面における中空部５の中心点から電気信号線１の埋設位置を見る方向の４５度角以内に、外皮２の全周における最小曲率半径を有してなる。【選択図】図４
