PROBLEM TO BE SOLVED: To provide a method for easily and accurately determining a plurality of blood circulation parameters, and a blood pressure measurement system capable of acquiring an accurate blood pressure value using the same.SOLUTION: A blood pressure measurement system includes: a pulse wave detection part 2 for detecting pulse wave time series data proportional to a blood flow rate for at least one heartbeat； a blood pressure measurement part 3 for measuring a first blood pressure based on an amplitude of a pulse wave that changes by the pressurization of a cuff； and a processing part 4 for calculating blood pressure time series data from the pulse wave time series data using a relational expression of a blood pressure having a plurality of blood circulation parameters and the blood flow rate, and calibrating the blood circulation parameters so that a second blood pressure acquired from the blood pressure time series data becomes equal to the first blood pressure. The first blood pressure and the second blood pressure include systolic blood pressure, average blood pressure, and diastolic blood pressure respectively.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】複数の血行パラメータを簡便に精度よく決定する方法と、これを用いた精度のよい血圧値の得られる血圧測定システムを提供する。【解決手段】血圧測定システムは、血流速度に比例する脈波時系列データを少なくとも一心拍分検出する脈波検出部２と、カフの加圧により変化する脈波の振幅に基づいて第１の血圧を測定する血圧測定部３と、複数の血行パラメータを有する血圧と血流速度の関係式を用いて、前記脈波時系列データから血圧時系列デ―タを算出し、前記血圧時系列データから求めた第２の血圧が前記第１の血圧に等しくなるように、前記血行パラメータを較正する処理部４と、を有し、前記第１と第２の血圧は、各々、収縮期血圧と平均血圧と拡張期血圧とを含む。【選択図】図２
