PROBLEM TO BE SOLVED: To impart indirect electrical stimulation without directly contacting to nervous tissue.SOLUTION: An electrode unit 2 includes: a tip end fastener 31 and a base end fastener 32 disposed mutually and separately a plurality of support portions 33 which are formed like a shaft with elastic materials, whose end portions are respectively connected to the fasteners, whose intermediate portion of an axial direction along the axial line C through the both fasteners is curved to separate from the axial line, and whose intermediate portion is mutually and separately disposed in the vicinity of the axial line a pair of stimulation electrodes 34 provided on the opposite side to the axial line in the intermediate portion of the support portions a wiring portion 35 whose tip end is electrically connected to the pair of stimulation electrodes to extend to a base end along the support portions on which the pair of stimulation electrodes are provided and a liquid supply tube 36 whose opening port 36a of a tip end side is disposed adjacent to at least one of the tip end fastener and the base end fastener and whose base end side is extended along the wiring portion.COPYRIGHT: (C)2014,JPO&INPIT【課題】神経組織に直接的接触することなく間接的に電気的刺激を与えることができる。【解決手段】電極ユニット2は、互いに離間して配置された先端留め具31および基端留め具32と、弾性材料で軸状に形成されて端部が留め具にそれぞれ接続され、両留め具を通る軸線C1に沿う軸線方向の中間部分が軸線から離間するように湾曲するとともに中間部分が軸線周りに互いに離間して配置された複数の支持部33と、支持部の中間部分における軸線とは反対側に設けられた一対の刺激電極34と、先端部が一対の刺激電極に電気的に接続され、一対の刺激電極が設けられた支持部に沿って基端側に延びる配線部35と、先端側の開口36aが先端留め具および基端留め具の少なくとも一方の近傍に配置され、基端側が配線部に沿って延びる送液管36とを備える。【選択図】図1
