PROBLEM TO BE SOLVED: To provide an electrical stimulator device and an electrode lead by which insertion of the electrode lead, fixation thereof in a prescribed position in a body, and extraction from the inside of the body can be easily carried out.SOLUTION: The indwelling electrical stimulator device includes a flexible electrode lead made of a long body, and a stimulator device that generates a stimulator signal that is supplied to the electrode lead. The electrode lead further includes: an intraluminal insertion part, having an indwelling stimulator electrode that stimulates neurons and/or muscle and a winding part, disposed nearer the base end than the intraluminal insertion part. The stimulator device further includes a stimulator circuit that is electrically connected to the stimulator electrode, and that applies the stimulator signal to the stimulator electrode.COPYRIGHT: (C)2012,JPO&INPIT【課題】電極リードの体内への挿入、体内の所定位置への固定、体内からの抜去を容易に行えるようにする。【解決手段】柔軟性のある長尺体で作られた電極リードと、電極リードに供給する刺激信号を生成する刺激装置とを備えて生体内に留置される電気刺激装置である。電極リードは、生体内の神経及び/又は筋肉を刺激する刺激電極を有する管腔挿入部と、管腔挿入部よりも基端側に設けられ、連続湾曲構造を有する巻回部と、を備える。また、刺激装置は、刺激電極と電気的に接続され、該刺激電極に刺激信号を印加する刺激回路を備える。【選択図】図1