Machine-learning models for predicting decompensation risk

    公开(公告)号:US11670422B2

    公开(公告)日:2023-06-06

    申请号:US15406591

    申请日:2017-01-13

    CPC classification number: G16H50/30 G16H50/20 G16H50/70 G06N7/01 G06N20/00

    Abstract: A method for determining a risk of decompensated heart failure in a user includes receiving a first set of data that is fixed with respect to time. A machine-learning model generates one or more initial risk factors based on the first set of data. A second set of data for the user that dynamically updates over time is received from a wearable cardiovascular physiology monitor. The machine-learning model is used to generate dynamic data classifiers based on the one or more initial risk factors. Aggregate risk scores for the user are then indicated based on an evaluation of the second set of data against the dynamic data classifiers. In this way, static electronic medical records may be combined with dynamic, real-time data from wearable cardiovascular physiology monitors to provide an accurate and continuously updating risk of decompensated heart failure for a user.

    WRIST-WORN PULSE TRANSIT TIME SENSOR
    23.
    发明申请
    WRIST-WORN PULSE TRANSIT TIME SENSOR 审中-公开
    WRIST-WORN脉冲传输时间传感器

    公开(公告)号:US20160287172A1

    公开(公告)日:2016-10-06

    申请号:US14750646

    申请日:2015-06-25

    Abstract: A wrist-worn device heart-monitoring device is presented. The wrist-worn heart-monitoring device includes a radial tonometer configured to output a pressure signal indicating a pulse pressure wave at a user's wrist, two or more electrodes configured to output an electrical signal indicating a user's heart has been commanded to contract, and a microphone configured to output an audio signal indicating a closing of a user's aortic valve. The wrist-worn heart-monitoring device further includes a pulse transit time monitor configured to calculate a pre-ejection period of the user's heart based on at least the pressure, electrical, and audio signals, and calculate a pulse transit time based on at least the pre-ejection period, the pressure signal, and the electrical signal.

    Abstract translation: 提出了一种戴腕器的心脏监测装置。 手腕式心脏监测装置包括:径向眼压计,被配置为输出指示用户腕部的脉搏压力波的压力信号,被配置为输出指示用户心脏的电信号的两个或更多个电极被命令收缩, 被配置为输出指示用户主动脉瓣闭合的音频信号的麦克风。 手腕式心脏监测装置还包括脉冲传播时间监视器,其被配置为基于至少压力,电和音频信号来计算用户心脏的预喷射周期,并且至少基于至少 预喷射期间,压力信号和电信号。

    TRANSDUCING PRESSURE TO A NON-INVASIVE PULSE SENSOR
    24.
    发明申请
    TRANSDUCING PRESSURE TO A NON-INVASIVE PULSE SENSOR 审中-公开
    向非侵入式脉冲传感器传输压力

    公开(公告)号:US20160287102A1

    公开(公告)日:2016-10-06

    申请号:US14750747

    申请日:2015-06-25

    Abstract: A system for transducing arterial pressure includes a one-piece flexible cap configured to fit around a flexible piezo-electric sensor that is configured to alter an internal resistance upon deflection. The flexible cap includes a deflection wall configured to deflect towards the flexible piezo-resistive sensor in proportion to pressure applied by the artery. A pressure-transducing medium is sealed between the one-piece flexible cap and the flexible piezo-resistive sensor, such that deflection of the deflection wall towards the flexible piezo-resistive sensor causes proportional deflection of the flexible piezo-resistive sensor.

    Abstract translation: 用于转导动脉压的系统包括一体式柔性帽,其构造成围绕柔性压电传感器配置,该灵敏压电传感器被配置为在偏转时改变内部电阻。 弹性盖包括偏转壁,该偏转壁被配置成与由动脉施加的压力成比例地朝向柔性压阻传感器偏转。 压力传感介质被密封在单件柔性盖和柔性压阻传感器之间,使得偏转壁朝向柔性压阻传感器的偏转导致柔性压阻传感器的比例偏转。

Patent Agency Ranking