VITAL SIGN-MEASURING INSTRUMENT

摘要

Provided is a vital sign-measuring instrument designed to improve user-friendliness by being capable of detecting respiratory oscillations well in spite of the size of the instrument being reduced. The vital sign-measuring instrument (10) comprises: a liquid sac (50) with a liquid sealed therein and on which a living body is placed; a sensor (40), which detects the fluctuations in pressure inside the liquid sac that are associated with respiratory oscillations of the body and converts same into an electric signal; a support member (71), which is disposed on the back surface (53) of the liquid sac opposite to the front surface (51) that is disposed on the side of the body, and which elastically supports the liquid sac when the body is placed on the liquid sac; and an expansion and contraction-limiting member (73) that is disposed between the back surface of the liquid sac and the support member and is formed to expand and contract less easily in the planar direction than the front surface of the liquid sac.