PROBLEM TO BE SOLVED: To provide a vital measuring instrument improving convenience of a user by favorably detecting respiratory vibration regardless of miniaturization of the instrument.SOLUTION: A vital measuring instrument 10 includes: a fluid sac 50 that encloses fluid in the inside thereof and on which a living body is placed a sensor 40 that detects fluctuations in pressure within the fluid sac caused by the respiratory vibration of the living body and converts them into electrical signals a support member 71 that is disposed on a back side 53 of the fluid sac opposite to a surface 51 disposed on the living body side thereof and, when the living body is placed on the fluid sac, elastically supports the fluid sac and an extension/contraction regulating member 73 that is disposed between the back side of the fluid sac and the support member, and less prone to be elastically deformed in the plane direction with respect to the surface of the fluid sac.COPYRIGHT: (C)2014,JPO&INPIT【課題】機器の小型化に関わらず、呼吸振動を好適に検出することができ、もってユーザーの利便性の向上が図られたバイタル計測器を提供する。【解決手段】バイタル計測器10は、内部に流体を封入し、生体が載置される流体袋50と、生体の呼吸振動に伴う流体袋内の圧力の変動を検出して電気信号に変換するセンサ40と、流体袋の生体側に配置される表面51と反対の裏面53に配置され、生体が流体袋に載置されたときに流体袋を弾性的に支持する支持部材71と、流体袋の裏面と支持部材との間に配置され、流体袋の表面よりも面方向に伸縮変形し難く形成された伸縮規制部材73と、を有している。【選択図】図2
