PROBLEM TO BE SOLVED: To provide an electrical stimulation electrode assembly allowing certain contact of an electrode with a blood vessel wall.SOLUTION: This electrical stimulation electrode assembly 1 indwelled inside a blood vessel includes: an insulative body 11 provided with an electrode part 12 exposed with electrode faces 12A on the peripheral face energizing members 31, 32 which are made of elastic bodies and whose base end parts 31b, 32b are fixed to the body and a stylet 20 to which tip parts 31a, 32a of the energizing members are fixed. By adjusting a relative position between the body and the stylet, the energizing members can be deformed reversibly between first shapes wherein the energizing members are along the inner wall of the blood vessel in a view in the axial direction of the body and are energized such that the electrode faces contact with the inner wall, and second shapes wherein the energizing members are along the long direction of the body.COPYRIGHT: (C)2013,JPO&INPIT【課題】電極をより確実に血管壁に接触させることができる電気刺激電極組立体を提供する。【解決手段】血管内に留置される電気刺激電極組立体1は、電極面12Aを露出させた電極部12が外周面に設けられた絶縁性の本体11と、弾性体からなり、基端部31b、32bが本体に固定された付勢部材31、32と、付勢部材の先端部31a、32aが固定されたスタイレット20とを備え、本体とスタイレットとの相対位置を調節することにより、付勢部材を、本体の軸線方向に見て血管の内壁に沿い、電極面が内壁に接触するよう付勢する第一の形状と、本体の長手方向に沿う第二の形状とに可逆的に変形可能であることを特徴とする。【選択図】図1
