PROBLEM TO BE SOLVED: To provide a medical electric stimulation electrode capable of detaining a stimulation electrode part stably even in a blood vessel which is flexible and slippery.SOLUTION: An electric simulation electrode 1 comprises: simulation electrode parts 10, 11 a linear lead part 20 penetrating wiring which is electrically connected to the stimulation electrode parts 10, 11 an electrode support body 25 formed into a cage-state so as to express almost rotation symmetry around a constant axial line by a linear elastic member, comprising the stimulation electrode parts 10, 11 on a part of the elastic member, and one end part in the axial direction is connected to an end part of the lead part 20 and plural salient parts 30 projecting from an outside face which is a radial outside of the electrode support body 25 on an outside face of the elastic member. The salient parts 30 comprise respectively, an outer peripheral face which gradually projects toward outside of the elastic member from a proximal end to a distal end to the lead part 20.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】医療用電気刺激電極において、柔軟で滑りやすい血管内であっても、刺激電極部を安定して留置することができるようにする。【解決手段】電気刺激電極1であって、刺激電極部10、11と、刺激電極部10、11に電気的に接続された配線を挿通する線状のリード部20と、線状の弾性部材によって一定の軸線回りに略回転対称となる籠状に形成されるとともに弾性部材の一部に刺激電極部10、11を有し、軸線方向における一端部がリード部20の端部に接続された電極支持体25と、弾性部材の外面のうち、少なくとも電極支持体25の径方向外側となる外面から突出する複数の凸部30と、を備え、凸部30は、リード部20に対する近位端から遠位端に向かって弾性部材の外方に漸次突出する外周面を有する。【選択図】図2
