ISCHEMIA DETECTION USING PRESSURE SENSOR
    4.
    发明申请
    ISCHEMIA DETECTION USING PRESSURE SENSOR 审中-公开
    使用压力传感器进行ISCHEMIA检测

    公开(公告)号:US20080177156A1

    公开(公告)日:2008-07-24

    申请号:US11624974

    申请日:2007-01-19

    IPC分类号: A61B5/0205 A61B5/0215

    摘要: This document discusses, among other things, a system and method for sensing a pulmonary artery pressure (“PAP”) signal of a pulmonary artery (“PA”) and computing an indication of a reduction of blood supply to at least a portion of a heart using information from the PAP signal. The reduction of blood supply to at least a portion of the heart can be detected using a PAP signal characteristic or measurement, using a change in the PAP, using an interval between multiple PAP signal features, using a mitral valve performance, or using information from the PAP and information from a different physiological signal, including a cardiac signal, a heart sound signal, right ventricular pressure signal, a left ventricular pressure signal, a blood pressure signal, and an oxygen saturation signal.

    摘要翻译: 本文件尤其涉及用于感测肺动脉(“PA”)的肺动脉压(“PAP”)信号的系统和方法,并且计算将血液供应减少到至少一部分 心脏使用来自PAP信号的信息。 使用PAP信号特征或测量可以使用PAP信号特征或多个PAP信号特征之间的间隔,使用二尖瓣性能来使用PAP信号特征或测量来检测对心脏的至少一部分的血液供应,或使用来自 PAP和来自不同生理信号的信息,包括心脏信号,心音信号,右心室压力信号,左心室压力信号,血压信号和氧饱和度信号。

    USING DEVICE BASED SENSORS TO CLASSIFY EVENTS AND GENERATE ALERTS
    6.
    发明申请
    USING DEVICE BASED SENSORS TO CLASSIFY EVENTS AND GENERATE ALERTS 审中-公开
    使用基于设备的传感器进行分类事件和生成警报

    公开(公告)号:US20120157799A1

    公开(公告)日:2012-06-21

    申请号:US13331288

    申请日:2011-12-20

    IPC分类号: A61B5/00 A61B5/0205

    摘要: The present subject matter includes apparatus, methods and device-readable media for using impedance and heart sounds to classify events and alerts. An apparatus can include a processor circuit configured to receive a physiological indication, classify the indication, and generate a multi-dimensional heart failure decompensation status indication. A method can include obtaining a physiological indication, classifying the indication and generating a multi-dimensional heart failure decompensation status indication. A device-readable medium can include instructions that, when performed by the device can obtain a physiological indication, classify the indication, and generate a multi-dimensional heart failure decompensation status alert.

    摘要翻译: 本主题包括用于使用阻抗和心脏声音对事件和警报进行分类的装置,方法和设备可读介质。 一种装置可以包括配置成接收生理指示,对该指示进行分类并产生多维心力衰竭失代偿状态指示的处理器电路。 方法可以包括获得生理指示,分类指示并产生多维心力衰竭失代偿状态指示。 设备可读介质可以包括指令,当由设备执行时可以获得生理指示,对指示进行分类,并产生多维心力衰竭失代偿状态警报。

    ISCHEMIA DETECTION USING HEART SOUND TIMING
    8.
    发明申请
    ISCHEMIA DETECTION USING HEART SOUND TIMING 有权
    使用心脏声音时间的ISCHEMIA检测

    公开(公告)号:US20080177191A1

    公开(公告)日:2008-07-24

    申请号:US11625003

    申请日:2007-01-19

    IPC分类号: A61B5/0402 A61B5/02

    摘要: A system comprising a heart sound sensor to produce a heart sound signal representative of at least one heart sound. A signal analyzer circuit measures a baseline time interval between a first detected physiologic cardiovascular event and at least one second detected physiologic cardiovascular event. At least one of the first and second detected physiologic cardiovascular events includes a heart sound event obtained from the heart sound signal. The sensor analyzer circuit determines that an ischemic event occurred at least in part by detecting a specified measured subsequent change from the established baseline time interval. Other systems and methods are disclosed.

    摘要翻译: 一种包括心声传感器以产生代表至少一个心音的心音信号的系统。 信号分析器电路测量第一检测到的生理心血管事件与至少一个第二检测到的生理心血管事件之间的基线时间间隔。 第一和第二检测到的生理心血管事件中的至少一个包括从心脏声音信号获得的心脏声音事件。 传感器分析器电路通过从建立的基线时间间隔检测指定的测量的后续变化来至少部分地发生缺血事件。 公开了其它系统和方法。

    MONITORING PROJECTIONS ALONG PRINCIPAL COMPONENTS OF MULTIPLE SENSORS AS AN INDICATOR OF WORSENING HEART FAILURE
    9.
    发明申请
    MONITORING PROJECTIONS ALONG PRINCIPAL COMPONENTS OF MULTIPLE SENSORS AS AN INDICATOR OF WORSENING HEART FAILURE 有权
    监测多个传感器主要成分作为心脏衰竭指标的预测

    公开(公告)号:US20120157858A1

    公开(公告)日:2012-06-21

    申请号:US13325120

    申请日:2011-12-14

    IPC分类号: A61B5/0205 A61B5/02

    摘要: A device can include at least a first physiologic sensor circuit configured to provide a first physiologic signal, a second physiologic sensor circuit configured to provide a second physiologic signal, and a processor circuit. The processor circuit includes a principal component analysis circuit configured to represent data determined from the at least first and second physiologic sensor circuits as at least first and second axes, respectively, in a multidimensional space, determine one or more principal components in the multidimensional space, determine a quantitative attribute of the first and the second physiologic signals using at least one of the determined principal components or a projection of the data along the at least one determined principal component, and provide an indication of heart failure status according to the quantitative attribute to at least one of a user or a process.

    摘要翻译: 设备可以包括至少第一生理传感器电路,其被配置为提供第一生理信号,被配置为提供第二生理信号的第二生理传感器电路和处理器电路。 处理器电路包括主分量分析电路,其被配置为将表示从至少第一和第二生理传感器电路确定的数据分别表示为多维空间中的至少第一和第二轴,确定多维空间中的一个或多个主要分量, 使用确定的主成分中的至少一个或沿着至少一个确定的主成分的数据的投影来确定第一和第二生理信号的定量属性,并且根据定量属性提供心力衰竭状态的指示 至少一个用户或进程。

    DETECTING HEART FAILURE BY MONITORING THE TIME SEQENCE OF PHYSIOLOGICAL CHANGES
    10.
    发明申请
    DETECTING HEART FAILURE BY MONITORING THE TIME SEQENCE OF PHYSIOLOGICAL CHANGES 有权
    通过监测生理变化的时间序列来检测心脏失效

    公开(公告)号:US20120157797A1

    公开(公告)日:2012-06-21

    申请号:US13324142

    申请日:2011-12-13

    IPC分类号: A61B5/00

    摘要: Systems and methods for detecting heart failure by monitoring the time-sequence of physiological changes of a subject using a state machine circuit configured to receive information about physiological characteristics of the subject is described. The current state transitions between a first and a second state in response to a first transition trigger. The current state transitions between the second and first states in response to at least one of the expiration of a first timer or ceasing of the first transition trigger. The current state transitions between the second and third states in response to a second transition trigger. The current state transitions between the third and second states in response to at least one of expiration of a second timer or ceasing of the second transition trigger.

    摘要翻译: 描述了通过使用被配置为接收关于对象的生理特征的信息的状态机电路监视对象的生理变化的时间序列来检测心力衰竭的系统和方法。 当前状态响应于第一转换触发而在第一和第二状态之间转变。 响应于第一定时器的到期或第一转换触发的停止中的至少一个,当前状态在第二状态和第一状态之间转变。 当前状态响应于第二过渡触发而在第二和第三状态之间转变。 响应于第二定时器的到期或第二转换触发的停止中的至少一个,当前状态在第三状态和第二状态之间转变。