PROBLEM TO BE SOLVED: To provide a non-invasive, continuous blood pressure monitoring method and apparatus capable of highly accurately calculating a systolic pressure even when the blood pressure fluctuates.SOLUTION: The non-invasive, continuous blood pressure monitoring method includes: calculating a pulse wave propagation time (PTT) from a biosignal obtained by a biosignal detection sensor that is worn on a subject and calculating a systolic pressure using the obtained pulse wave propagation time and the following blood pressure calculation expression. Where, PSBP is the systolic pressure, TPTT is the pulse wave propagation time, and B1 and B2 are constant parameters. In a calibration, a reference data set in which the pulse wave propagation time and the blood pressure are associated with each other is acquired using second blood pressure acquisition means while fluctuating the blood pressure of a subject, and the constant parameters B1 and B2 are determined by the fitting between the blood pressure calculation expression and the reference data set.COPYRIGHT: (C)2014,JPO&INPIT【課題】血圧変動時でも高精度で収縮期血圧算出を行うことができる非侵襲的連続血圧モニタリング方法及び装置を提供する。【解決手段】被験者に装着された生体信号検出センサによって得られた生体信号から脈波伝搬時間(PTT)を算出し、取得した脈波伝搬時間と、以下の血圧算出式と、を用いて収縮期血圧を算出する。ここで、PSBP:収縮期血圧、TPTT:脈波伝搬時間、B1、B2:定数パラメータ。校正において、被験者の血圧を変動させながら第2の血圧取得手段を用いて脈波伝搬時間と血圧を対応させた参照データセットを取得し、前記血圧算出式と前記参照データセットとのフィッティングを行うことで定数B1、B2を決定する。【選択図】図1
