PROBLEM TO BE SOLVED: To prevent short circuit between electrodes, and improve accuracy of measurement of a surface myoelectric potential without bringing unpleasantness in mounting.SOLUTION: A fitting member 1 for a living body, fitted to the living body in order to measure a surface myoelectric potential includes: an electrode member 100 which comprises a pair of an electrode 10a and an electrode 10b for measuring a surface myoelectric potential, a wiring part 20a and a wiring part 20b with conductivity, connected to the pair of electrodes 10a and 10b, and outputting to the outside an electric signal according to the surface myoelectric potential, and an insulative holding member 40 for holding the pair of electrodes 10a and 10b； and a flexible and insulative fitting member 30 which is fitted to the living body and is disposed with the electrode member 100 on an opposite surface opposite to the living body. The holding member 40 is disposed between the fitting member 30 and the pair of electrodes 10a and 10b, has waterproofness at least from the pair of electrodes 10a and 10b to the fitting member 30, has flexibility, and is hardly bent compared to the fitting member 30.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】装着時に不快感を感じることなく、電極間の短絡を防止すると共に表面筋電位の測定精度を向上させること。【解決手段】表面筋電位を測定するために生体に装着される生体用装着部材１は、表面筋電位を測定する一対の電極１０ａ及び電極１０ｂと、一対の電極１０ａ及び電極１０ｂの各々に接続して表面筋電位に応じた電気信号を外部に出力する導電性の配線部２０ａ及び配線部２０ｂと、一対の電極１０ａ及び電極１０ｂを保持する絶縁性の保持部材４０と、を備える電極部材１００と、生体に装着されると共に生体に対向する対向面に電極部材１００が設けられる柔軟性及び絶縁性を有する装着部材３０と、を有する。保持部材４０は、装着部材３０と一対の電極１０ａ及び電極１０ｂとの間に設けられ、少なくとも一対の電極１０ａ及び電極１０ｂから装着部材３０に対して防水性を有し、柔軟性を有すると共に装着部材３０よりも屈曲し難い。【選択図】図２
