PROBLEM TO BE SOLVED: To provide a biomedical electrode allowing arrangement of impedance conversion circuits near electrodes, and allowing suppression of the occurrence of noise.SOLUTION: The biomedical electrode is a myoelectric potential measurement electrode 1 including: a pair of detection electrodes 7, 9 brought into contact with a living body to detect a bioelectric potential and a reference electrode 11, brought into contact with the living body, for setting a reference potential compared with the potential detected by the detection electrodes 7, 9. The myoelectric potential measurement electrode 1 includes the flexible detection electrodes 7, 9 and reference electrode 11 on one surface of a flexible board 5, includes, on the other surface of the flexible board 5, the impedance conversion circuits 13, 15 disposed in positions overlapping areas to which the detection electrodes 7, 9 are projected on the flexible board 5 side, and includes electric shields 17, 19 made of material harder than the flexible board 5 and the detection electrodes 7, 9 such that the electric shields 17, 19 cover the outer surfaces of the impedance conversion circuits 13, 15.COPYRIGHT: (C)2012,JPO&INPIT【課題】インピーダンス変換回路を電極に近接して配置できるとともに、ノイズの発生も抑制できる生体用電極を提供すること。【解決手段】生体に接触させて生体電位を検出する一対の検出電極7、9と、生体に接触させるとともに検出電極7、9で検出される電位と対比する基準電位を設定するための基準電極11と、を備えた筋電位測定電極1である。この筋電位測定電極1は、フレキシブル基板5の一方の表面に、フレキシブルな検出電極7、9と基準電極11とを備えるとともに、フレキシブル基板5の他方の表面に、検出電極7、9をフレキシブル基板5側へ投影した領域と重なる位置に、インピーダンス変換回路13、15を配置し、更にインピーダンス変換回路13、15の外側表面を覆う様に、フレキシブル基板5及び検出電極7、9よりも硬質な材料からなる電気シールド17、19を備えている。【選択図】図2
