PROBLEM TO BE SOLVED: To provide a compact and, especially, thin and precise wrist type hemadynamometer.SOLUTION: The wrist type hemadynamometer applies locally pressurizes a radial artery or substantially right above an arteria ulnaris, to detect a pressure variation of the vascular wall, and calculates a blood pressure from an oscillometric waveform. The wrist type hemadynamometer includes: a base plate 28 a cylindrical cam structure 26 that is provided on the base plate 28 and that locally pressurizes the radial artery or substantially right above the arteria ulnaris a pressure sensor 32 that is provided at an end of the cylindrical cam structure 26 and that detects the pressure variation of the vascular wall a drive means 18 that drives the cylindrical cam structure 26 and drive deceleration means 22, 24 that decelerate the rotation of the drive means 18 and transmit the rotation to the cylindrical cam structure 26.COPYRIGHT: (C)2012,JPO&INPIT【課題】小型で特に薄型の正確な手首式血圧計を提供する。【解決手段】手首式血圧計は、橈骨動脈、若しくは尺骨動脈の略直上を局所的に加圧して、その血管壁の圧力変動を検知し、そのオシロメトリック波形から血圧値を算出する手首式血圧計であって、ベース板28と、ベース板28に設けられ、橈骨動脈、若しくは尺骨動脈の略直上を局所的に加圧する円筒カム機構26と、円筒カム機構26の先端側に設けられ、血管壁の圧力変動を検知する圧力センサー32と、円筒カム機構26を駆動する駆動手段18と、駆動手段18の回転を減速して円筒カム機構26に伝達する駆動減速手段22,24と、を含む。【選択図】図2
