PROBLEM TO BE SOLVED: To provide a nerve stimulation electrode hardly blocking a blood flow, while suppressing displacement of an electrode after placement.SOLUTION: A nerve stimulation electrode 20 includes: stimulation electrodes 23A and 23B a placement part 21 composed of an elastically-deformable energizing member 22 and holding the stimulation electrodes in a body and a lead part 25 for connecting a stimulation generator for generating electric stimulation, to the placement part. The lead part includes: a first hard portion 26 to be connected to the placement part a soft portion 27 configured softer than the first hard part and connected to a proximal end of the hard portion and a second hard portion 28 configured harder than the soft portion and connected to the proximal end of the soft portion.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】留置後の電極の位置ずれを抑制しつつ、血流を妨げにくい神経刺激電極を提供する。【解決手段】神経刺激電極20は、刺激電極23A、23Bと、弾性変形可能な付勢部材22を用いて構成され、刺激電極を生体内に保持する留置部21と、電気刺激を発生する刺激発生装置と留置部とを接続するリード部25とを備え、リード部は、留置部と接続される第一硬性部26と、第一硬性部よりも柔軟に構成され、第一硬性部の基端部に接続された柔軟部27と、柔軟部よりも硬質に構成され、柔軟部の基端部に接続された第二硬性部28とを有する。【選択図】図2
