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    • 8. 发明授权
    • Apparatus and method for measuring blood pressure using linearly varying air pressure
    • 使用线性变化的空气压力测量血压的装置和方法
    • US06719702B2
    • 2004-04-13
    • US10155136
    • 2002-05-28
    • Jong-youn LeeGil-won Yoon
    • Jong-youn LeeGil-won Yoon
    • A61B502
    • A61B5/02225A61B5/021
    • An apparatus and method for measuring blood pressure using linearly varying air pressure, including a compression unit; an air pump that injects air into the compression unit; a pressure sensor that senses and outputs the air pressure of the compression unit; an ADC that converts and outputs the result of the sensing as a pressure signal; a controller that calculates a current pressure value of the compression unit from the pressure signal and a linear pressure of the compression unit that is linearly dropped corresponding to the current pressure value and generates the first control signal in response to the current pressure value and a second control signal from the result of a comparison of the current pressure value and the linear pressure; a DAC that converts and outputs the second control signal as an exhaust control signal; and a proportional control valve that exhausts air from the compression unit.
    • 一种使用线性变化的空气压力测量血压的装置和方法,包括压缩单元; 空气泵,其将空气注入压缩单元; 感测并输出压缩单元的空气压力的压力传感器; 将感测结果转换并输出作为压力信号的ADC; 控制器,根据压力信号计算压缩单元的当前压力值,以及根据当前压力值线性下降的压缩单元的线性压力,并响应于当前压力值产生第一控制信号,第二 根据当前压力值与线性压力的比较结果的控制信号; DAC,其作为排气控制信号转换并输出第二控制信号; 以及从压缩单元排出空气的比例控制阀。