PROBLEM TO BE SOLVED: To adjust a position of an electrode when measuring or stimulating a nerve bundle or a peripheral nerve.SOLUTION: An electroconductive cushioning material is wound around the nerve bundle or the peripheral nerve, has a sheet like shape, and has a cushioning part formed of an anisotropic electroconductive soft material in which the resistance in a front to back direction is sufficiently less than the resistance in other directions and an end part fixing device for keeping the state where the cushioning part is wound in a cylindrical shape. An electrode tool has a tool body, one or more of electrodes, and wires connected respectively to the electrodes. The tool body in which at least a surface is formed of an insulating material has an arc shape arc part and a grip part for gripping the electrode tool. An electrode is disposed on the surface of the inside of the arc part of the tool body. An electrode mechanism is constituted so as to bring the electrodes of the electrode tool contact with the outer periphery of the electroconductive cushioning material wound into the cylindrical shape.COPYRIGHT: (C)2012,JPO&INPIT【課題】神経束または末梢神経を計測もしくは刺激するときに、電極の位置を調整できるようにする。【解決手段】本発明の導電性緩衝材は、神経束または末梢神経の一部に巻くための物であり、シート状であって、表裏方向の抵抗が他の方向の抵抗よりも十分小さい異方性導電柔軟材料で形成された緩衝部と、緩衝部を筒状に巻いた状態を維持するための端部固定手段とを備える。本発明の電極治具は、治具本体、1つ以上の電極、電極ごとに接続された配線を有する。治具本体は、少なくとも表面は絶縁体で形成され、円弧状の円弧部と、当該電極治具を把持するための把持部とを有する。電極は、治具本体の円弧部の内側の面上に配置されている。本発明の電極機構は、円筒状に巻かれた導電性緩衝材の外周に、電極治具の電極を接触させるように構成されている。【選択図】図6
