SYSTEMS AND METHODS FOR NON-PULSATILE BLOOD VOLUME MEASUREMENTS
    1.
    发明申请
    SYSTEMS AND METHODS FOR NON-PULSATILE BLOOD VOLUME MEASUREMENTS 审中-公开
    用于非脉络血量测量的系统和方法

    公开(公告)号:WO2017197033A1

    公开(公告)日:2017-11-16

    申请号:PCT/US2017/032028

    申请日:2017-05-10

    Applicant: APPLE INC.

    Abstract: This relates to systems and methods for determining one or more of a user's physiological signals. The one or more of the user's physiological signals can be determined by measuring pulsatile blood volume changes. Motion artifacts included in the signals can be canceled or reduced by measuring non-pulsatile blood volume changes and adjusting the signal to account for the non-pulsatile blood information. Non-pulsatile blood volume changes can be measured using at least one set of light emitter-light sensor. The light emitter can be located in close proximity (e.g., less than or equal to 1mm away) to the light sensor, thereby limiting light emitted by the light emitter to blood volume without interacting with one or more blood vessels and/or arterioles. In some examples, the systems can further include an accelerometer configured to measure the user's acceleration, and the acceleration signal can be additionally be used for compensating for motion artifacts.

    Abstract translation: 这涉及用于确定用户的生理信号中的一个或多个的系统和方法。 一个或多个用户的生理信号可以通过测量脉动血量变化来确定。 包括在信号中的运动伪影可以通过测量非脉动血量变化并调整信号以解释非脉动血液信息来取消或减少。 可以使用至少一组光发射器 - 光传感器来测量非脉动血量变化。 光发射器可以位于与光传感器非常接近(例如,小于或等于1mm)的位置,由此将光发射器发射的光限制为血量而不与一个或多个血管和/或小动脉相互作用。 在一些示例中,系统可以进一步包括被配置为测量用户的加速度的加速度计,并且加速度信号可以另外被用于补偿运动伪影。

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