PROBLEM TO BE SOLVED: To provide a living body surface-mounted electrode that can stably maintain a humidity of a skin surface with which an electrode body comes in contact, in a moderately high state, and to provide a biological signal measurement method using the living body surface-mounted electrode and a biological signal measuring device including the living body surface-mounted electrode.SOLUTION: [1] A body surface-mounted electrode includes an electrode body 1 having water permeability, and a high polymer gel 2 impregnated with liquid and covering at least a portion of the electrode body. [2] A body surface-mounted electrode includes a protecting sheet 3 covering the high polymer gel. [3] A body surface-mounted electrode includes an electrode body having water permeability, and the electrode body is impregnated with water, glycerol or ionic liquid. [4] A body surface-mounted electrode has a conductive polymer used as a material constituting the electrode body. [5] A body surface-mounted electrode includes a mesh having conductivity and disposed between the electrode body and the high polymer gel.COPYRIGHT: (C)2014,JPO&INPIT【課題】電極本体が接する皮膚表面の湿度を安定して適度に高く保つことが可能な生体表面設置型電極、その生体表面設置型電極を用いた生体信号の測定方法、及びその生体表面設置型電極を備えた生体信号測定装置の提供。【解決手段】[1]水透過性を有する電極本体1と、前記電極本体の少なくとも一部を覆う、液体が含浸された高分子ジェル2と、が備えられた体表面設置型電極。[2]前記高分子ジェルを覆う保護シート3が備えられた前記体表面設置型電極。[3]水透過性を有する電極本体が備えられ、前記電極本体に、水、グリセロール又はイオン液体が含浸された体表面設置型電極。[4]前記電極本体を構成する材料として導電性高分子が使用された前記体表面設置型電極。[5]前記電極本体と前記高分子ジェルの間に、導電性を有するメッシュが配置された前記体表面設置型電極。【選択図】図1
