PROBLEM TO BE SOLVED: To provide a sphygmomanometer apparatus and a sphygmomanometry method for improving an S/N ratio for detecting systolic pressure by effectively removing an influence of volume variations of an upstream part of a blood blocking cuff on a pulse wave-detecting cuff of a double cuff method by an oscillometric method.SOLUTION: The cuff 100 for detecting pulse waves is equipped with a main body 5 of the cuff mounted on a blood pressure measurement site, the blood blocking cuff 1 for compressing an artery K of the blood pressure measurement site, a subcuff 3 arranged on the side of a heart from the central part below the blood blocking cuff, piping 7 connected to the blood blocking cuff and the subcuff through branch parts, and a fluid resisting device 11 connected between the piping and the subcuff.COPYRIGHT: (C)2008,JPO&INPIT【課題】 オシロメトリック方式によるダブルカフ方式の脈波検出用カフに対する阻血用カフの上流部の容積変化の影響をより効果的に排除し、収縮期血圧の検出のためのS/N比を向上できる血圧測定装置および血圧測定方法の提供。【解決手段】 脈波を検出するカフ100であって、血圧測定部位に装着されるカフ本体5と、血圧測定部位の動脈Kを圧迫する阻血用カフ1と、前記阻血用カフの下方の略中央部よりも心臓側に配置されるサブカフ3と、前記阻血用カフと前記サブカフに対して分岐接続される配管7と、前記配管と前記サブカフとの間に接続される流体抵抗器11とを備える。【選択図】図1
