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1. 发明授权

US4444200A Heart pulse rate measuring system 失效
标题翻译：心脏脉搏测量系统
公开(公告)号：US4444200A
公开(公告)日：1984-04-24
申请号：US299578
申请日：1981-09-04
申请人： Iwao Fujisaki , Shuichi Kosuge , Syuu Ogawa , Kimihiko Sato , Toshimi Soeda
发明人： Iwao Fujisaki , Shuichi Kosuge , Syuu Ogawa , Kimihiko Sato , Toshimi Soeda
IPC分类号： A61B5/0404 , A61B5/0464 , A61B5/04
CPC分类号： A61B5/0404 , A61B5/0464
摘要： A heart pulse rate measuring system comprises a casing, a pair of rod-shaped grip sensors extending outwardly from the opposite sides of the casing for sensing a heart pulse signal, and an electric circuit for calculating a heart pulse rate from the sensed heart pulse signal. Each of the grip sensors is composed of two conductive cylindrical electrodes arranged in an axially aligned relationship and electrically insulated from each other for obtaining a pulse rate utilizing the potentials at four points in a user's body. The electric circuit includes a differential amplifier, having a ground connection to one of the two electrodes of each sensor and two inputs for the remaining electrodes. A filter is used to eliminate noise from the output of the differential amplifier, and a computer calculates the heart rate from the output of the filter. Additionally, an AC-DC converter is connected between the differential amplifier and the computer for providing a DC signal to the computer when an output is provided by the differential amplifier. The computer responds to a predetermined DC level by starting a display indication of heart pulse rate. A timer is provided for use of the system with an exercise device and an alarm is activated at the expiration of the preset exercise time or if pulse rate deviates beyond upper or lower limits preset therefor. A printer provides a printout of time and/or pulse rate at predetermined time intervals.
摘要翻译：心脏脉搏率测量系统包括壳体，从壳体的相对侧向外延伸的一对杆状抓握传感器，用于感测心脏脉搏信号;以及电路，用于根据感测到的心脏脉搏信号计算心脏脉搏率。每个夹持传感器由两个导电圆柱形电极构成，两个导电圆柱形电极以轴向对准的关系布置并且彼此电绝缘，以获得利用用户身体中的四个点处的电位的脉率。电路包括差分放大器，其具有与每个传感器的两个电极之一的接地连接和用于剩余电极的两个输入。滤波器用于消除差分放大器输出端的噪声，计算机从滤波器输出端计算心率。此外，AC-DC转换器连接在差分放大器和计算机之间，用于当由差分放大器提供输出时向计算机提供DC信号。计算机通过开始心脏脉搏率的显示指示来响应预定的DC电平。提供了一种定时器，用于使用具有运动装置的系统，并且在预设运动时间到期时激活警报，或者如果脉搏速率偏离超出预设的上限或下限。打印机以预定的时间间隔提供时间和/或脉搏率的打印输出。

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