PROBLEM TO BE SOLVED: To stimulate a deep part of a stimulation target without stimulating a portion except the stimulation target.SOLUTION: This electric stimulation device includes: at least two stimulation devices held inside a living body a connection part electrically connecting each stimulation device to each other stimulation device and a power supply device which can supply power to the respective stimulation devices and is set inside the living body. Each stimulation device includes: a stimulation electrode a stimulation signal generation part generating a stimulation signal and applying it to the stimulation electrode and a control part electrically connected to the connection part, outputting power to the connection part, and controlling the stimulation signal generation part. Each stimulation device includes: a power storage part which accumulates the input power, and from which the accumulated power is supplied to the stimulation signal generation part and the control part a power reception part capable of receiving the power from the power supply device and a gate part capable of selectively connecting the power storage part to the power reception part or the connection part. The power supply device includes: a power supply part supplying the power to the power reception part of each stimulation device from outside the living body and a gate operation part operating the gate part to connect the power storage part to the power storage part when supplying the power to the power reception part from the power supply part.COPYRIGHT: (C)2012,JPO&INPIT【課題】刺激対象以外を刺激することなく、当該刺激対象の深部を刺激する。【解決手段】生体内に留置される少なくとも2つの刺激装置と、各刺激装置を他の各刺激装置に電気的に接続する接続部と、各刺激装置に給電可能な生体内に設置される給電装置とを含む電気刺激装置である。各刺激装置は、刺激電極と、刺激信号を生成して刺激電極に印加する刺激信号生成部と、接続部に電気的に接続され、該接続部に電力を出力するとともに、刺激信号生成部を制御する制御部と、を備える。そして、入力された電力を蓄積し、蓄積された電力が刺激信号生成部および制御部に供給される蓄電部と、給電装置から受電可能な受電部と、蓄電部を、受電部あるいは接続部を選択的に接続可能なゲート部と、を備える。一方、給電装置は、各刺激装置の受電部に生体外より給電する給電部と、給電部から受電部に給電を行う際に、ゲート部を操作して蓄電部を蓄電部に接続させるゲート操作部と、を備える。【選択図】図5
