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    • 2. 发明授权
    • Cardiovascular information measurement system
    • 心血管信息测量系统
    • US06176832B1
    • 2001-01-23
    • US09141263
    • 1998-08-27
    • Yoshiyuki HabuMitsutoshi Yaegashi
    • Yoshiyuki HabuMitsutoshi Yaegashi
    • A61B502
    • A61B5/0285A61B8/06
    • It is an object of the present invention to provide a cardiovascular information measurement system capable of performing an accurate blood pressure measurement and calculating an accurate cardiovascular index in consideration of the pulsation of a blood vessel wall. To achieve this object, the cardiovascular information measurement system includes ultrasonic transducer groups (4a, 4b) for simultaneously detecting sectional shapes (3a, 3b) of two arterial portions, a cross-sectional area calculation unit (5) for calculating cross-sectional areas of the two arterial portions on the basis of the detected sectional shapes, a flow velocity calculation unit (6) for calculating an average blood flow velocity in an artery on the basis of the cross-sectional areas calculated by the cross-sectional area calculation unit (5), a pulse wave velocity calculation unit (7) for calculating a pulse wave propagation velocity between the two arterial portions in accordance with time changes in the detected sectional shapes of the two arterial portions, a relative blood pressure calculation unit (8) for calculating a relative blood pressure value to a reference blood pressure value obtained in a specific time phase, on the basis of the calculated blood flow velocity and the calculated pulse wave propagation velocity, and an absolute blood pressure calculation unit (10) for calculating an absolute blood pressure value on the basis of the relative blood pressure value and the reference blood pressure value obtained in the specific time phase and measured in advance.
    • 本发明的目的是提供一种心血管信息测量系统,其能够进行精确的血压测量并考虑到血管壁的脉动来计算准确的心血管指数。 为了实现该目的,心血管信息测量系统包括用于同时检测两个动脉部分的截面形状(3a,3b)的超声波换能器组(4a,4b),用于计算横截面积的横截面积计算单元(5) 基于检测到的截面形状的两个动脉部分的流量计算单元(6),用于基于由横截面积计算单元计算出的横截面积来计算动脉中的平均血流速度 (5),根据检测到的两个动脉部分的截面形状的时间变化计算两个动脉部分之间的脉搏波传播速度的脉搏波速度计算部(7),相对血压计算部(8) 用于基于所计算的血流速度a计算在特定时间段中获得的参考血压值的相对血压值 计算出的脉搏波传播速度和绝对血压计算单元(10),用于基于在特定时间段中获得的相对血压值和参考血压值来计算绝对血压值,并且预先测量 。
    • 4. 发明申请
    • BLOOD PRESSURE MEASURING APPARATUS AND BLOOD PRESSURE MEASURING METHOD
    • 血压测量装置和血压测量方法
    • US20080071179A1
    • 2008-03-20
    • US11858683
    • 2007-09-20
    • Yoshiyuki HABUKouji HagiHitoshi OzawaShoichi HayashidaJunichi ShimadaHiroshi Koizumi
    • Yoshiyuki HABUKouji HagiHitoshi OzawaShoichi HayashidaJunichi ShimadaHiroshi Koizumi
    • A61B5/02
    • A61B5/02225A61B5/02208A61B5/0245A61B5/6815A61B5/7285
    • This invention provides a blood pressure measuring apparatus capable of deriving an appropriate pressure value even in an environment in which the environmental temperature constantly changes. A blood pressure measuring apparatus has a cuff to be attached to the external ear and its periphery, a signal acquiring unit which acquires a pulse wave signal and/or Korotkoff sounds from a pressed portion and its periphery pressed by the cuff, a pressure sensor which outputs a predetermined signal level corresponding to a pressure value in the cuff, a temperature measuring unit which measures a temperature near the pressure sensor, a blood pressure value deriving unit which derives a blood pressure value on the basis of a pressure value derived from the signal level, and the pulse wave signal and/or the Korotkoff sounds, and an adjusting unit which performs adjustment which compensates for a characteristic change of the pressure sensor with respect to the pressure value, if the temperature measured by the temperature measuring unit changes by a predetermined value or more.
    • 本发明提供即使在环境温度不断变化的环境中也能得到适当的压力值的血压测定装置。 血压测量装置具有附接到外耳及其周边的袖带;信号获取单元,其从按压部分及其由袖带压制的周边获取脉搏波信号和/或Korotkoff声;压力传感器, 输出与袖带中的压力值相对应的预定信号电平,测量压力传感器附近温度的温度测量单元,基于从信号导出的压力值导出血压值的血压值导出单元 电平和脉波信号和/或Korotkoff声音;以及调节单元,其执行调节,其补偿压力传感器相对于压力值的特性变化,如果由温度测量单元测量的温度改变为 预定值以上。