WIDE QRS DETECTOR
    1.
    发明申请
    WIDE QRS DETECTOR 有权
    宽QRS检测器

    公开(公告)号:US20120310101A1

    公开(公告)日:2012-12-06

    申请号:US13472563

    申请日:2012-05-16

    IPC分类号: A61B5/0472

    摘要: A system comprises a cardiac signal sensing circuit and a processor circuit. To detect a QRS duration, the processor circuit determines an isoelectric amplitude value of the cardiac signal segment, identifies a time where the cardiac signal segment amplitude deviates from the first isoelectric amplitude value by a specified threshold deviation value as a Q time, determines an isoelectric value time after the determined maxima and minima times that the cardiac signal segment returns to the same or a different isoelectric amplitude value, identifies a time that follows both the determined maxima and minima times and precedes the isoelectric value time as an S time, wherein the cardiac signal segment amplitude at the identified S time satisfies a specified amplitude change criterion from an isoelectric amplitude value, and determines a time duration of the QRS complex in the cardiac signal segment using the identified Q and S times.

    摘要翻译: 一种系统包括心脏信号感测电路和处理器电路。 为了检测QRS持续时间,处理器电路确定心脏信号片段的等电位振幅值,将心脏信号片段振幅与第一等电位振幅值偏离指定阈值偏差值的时间作为Q时间,确定等电点 确定心脏信号段返回到相同或不同等电位振幅值的确定最大值和最小值之后的值时间,识别在确定的最大值和最小值时间之后的时间,并且在等电点时间之前等于S时间,其中 在所识别的S时刻的心脏信号段振幅满足来自等电位振幅值的规定的振幅变化标准,并且使用所识别的Q和S倍来确定心脏信号段中的QRS复合物的持续时间。

    USING DEVICE BASED ELECTROGRAMS TO IDENTIFY BUNDLE BRANCH BLOCK MORPHOLOGY
    3.
    发明申请
    USING DEVICE BASED ELECTROGRAMS TO IDENTIFY BUNDLE BRANCH BLOCK MORPHOLOGY 有权
    使用基于设备的电子元件来识别分支块形态

    公开(公告)号:US20130123653A1

    公开(公告)日:2013-05-16

    申请号:US13677962

    申请日:2012-11-15

    摘要: A patient QRS duration can be received or determined, such as using one or more patient physiological sensors. A portion of the QRS duration can be determined, such as a right or left ventricular activation time. In an example, the right ventricular activation time can be determined by identifying an onset of a QRS complex and an R-wave peak in the QRS complex. In an example, when the QRS duration exceeds a threshold duration, and the RV activation time does not exceed a second threshold duration, an indication of a cardiac conduction dysfunction can be provided, such as for discriminating between left bundle branch block and right bundle branch block.

    摘要翻译: 可以接收或确定患者的QRS持续时间,例如使用一个或多个患者生理传感器。 可以确定QRS持续时间的一部分,例如右心室或左心室激活时间。 在一个例子中,右心室激活时间可以通过识别QRS复合物的起始和QRS波群中的R波峰来确定。 在一个示例中,当QRS持续时间超过阈值持续时间,并且RV激活时间不超过第二阈值持续时间时,可以提供心脏传导功能障碍的指示,例如用于区分左束支传导阻滞和右束支 块。

    CARDIAC DECOMPENSATION DETECTION USING MULTIPLE SENSORS
    4.
    发明申请
    CARDIAC DECOMPENSATION DETECTION USING MULTIPLE SENSORS 有权
    使用多个传感器的心脏分解检测

    公开(公告)号:US20120157864A1

    公开(公告)日:2012-06-21

    申请号:US13324174

    申请日:2011-12-13

    IPC分类号: A61B5/02

    摘要: Physiological data, such as thoracic impedance data, can be obtained over a first time window to establish a baseline, or can be used to form one or more data clusters. Additional physiological data, such as thoracic impedance test data acquired over a later time window, can be obtained and compared to the baseline or data clusters to determine an indication of worsening heart failure. In an example, a quantitative attribute of one or more data clusters can be monitored and used to provide an indication of worsening heart failure. A posture discrimination metric can be obtained, such as using the physiological data obtained over the first time window. The additional physiological data, such as can be obtained over a second time window, can be compared to the posture discrimination metric to provide a patient posture status.

    摘要翻译: 可以在第一时间窗口中获得诸如胸部阻抗数据的生理数据以建立基线,或者可以用于形成一个或多个数据簇。 可以获得额外的生理数据,例如在稍后时间窗口上获取的胸部阻抗测试数据,并与基线或数据簇进行比较,以确定心脏衰竭恶化的指示。 在一个示例中,可以监视一个或多个数据集群的定量属性并用于提供恶化的心力衰竭的指示。 可以获得姿势辨别度量,例如使用在第一时间窗口中获得的生理数据。 可以将诸如在第二时间窗口上获得的附加生理数据与姿势辨别度量进行比较以提供患者姿势状态。

    Integrating device-based sensors and bedside biomarker assays to detect worsening heart failure
    6.
    发明授权
    Integrating device-based sensors and bedside biomarker assays to detect worsening heart failure 有权
    整合基于装置的传感器和床旁生物标志物检测以检测恶化的心力衰竭

    公开(公告)号:US08602996B2

    公开(公告)日:2013-12-10

    申请号:US13118932

    申请日:2011-05-31

    IPC分类号: A61B5/02

    摘要: Devices and methods for improving the sensitivity and specificity of heart failure (HF) detection are described. The devices and methods can detect a HF status such as using physiological sensor data and external biomarker assays. An apparatus can comprise ambulatory physiological sensors that can provide a first HF status indicator and a second HF status indicator to a user. An external biomarker sensor can provide an amount of a biomarker present, such as an assay for B-type natriuretic peptide (BNP), which provides information about HF status. A processor circuit can switch from a first HF detection mode to a second detection mode such as in response to the information from the biomarker sensor. The first detection mode can detect HF status using the first HF status indicator, and the second detection mode can detect HF status using the second HF status indicator. The second detection mode can have a higher specificity than the first detection mode.

    摘要翻译: 描述了用于改善心力衰竭(HF)检测的灵敏度和特异性的装置和方法。 设备和方法可以检测HF状态,例如使用生理传感器数据和外部生物标志物测定。 装置可以包括可向用户提供第一HF状态指示符和第二HF状态指示符的动态生理传感器。 外部生物标志物传感器可以提供一定量的存在的生物标志物,例如提供关于HF状态的信息的B型利尿钠肽(BNP)的测定。 处理器电路可以从第一HF检测模式切换到第二检测模式,例如响应于来自生物标志物传感器的信息。 第一检测模式可以使用第一HF状态指示器检测HF状态,第二检测模式可以使用第二HF状态指示器检测HF状态。 第二检测模式可以具有比第一检测模式更高的特异性。

    USING DEVICE BASED SENSORS TO CLASSIFY EVENTS AND GENERATE ALERTS
    7.
    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。

    MULTIPLE VECTOR FLUID LOCALIZATION
    8.
    发明申请
    MULTIPLE VECTOR FLUID LOCALIZATION 有权
    多个矢量流体定位

    公开(公告)号:US20110098771A1

    公开(公告)日:2011-04-28

    申请号:US12912219

    申请日:2010-10-26

    IPC分类号: A61N1/37

    摘要: A differential or relative measurement between an orthogonal measurement vector and another measurement vector can be used to determine the location where fluid accumulation is occurring or the local change in such fluid accumulation. This can help diagnose or treat infection or hematoma or seroma at a pocket of an implanted cardiac rhythm management device, other implanted medical device, or prosthesis. It can also help diagnose or treat pulmonary edema, pneumonia, pulmonary congestion, pericardial effusion, pericarditis, pleural effusion, hemodilution, or another physiological condition.

    摘要翻译: 可以使用正交测量矢量和另一测量矢量之间的差分或相对测量来确定发生流体积聚的位置或这种液体积聚中的局部变化。 这可以帮助诊断或治疗植入式心律管理装置,其他植入的医疗装置或假体的口袋上的感染或血肿或血清。 它还可以帮助诊断或治疗肺水肿,肺炎,肺部充血,心包积液,心包炎,胸腔积液,血液稀释或其他生理条件。

    Posture detection using thoracic impedance
    9.
    发明授权
    Posture detection using thoracic impedance 有权
    姿势检测采用胸部阻抗

    公开(公告)号:US09332924B2

    公开(公告)日:2016-05-10

    申请号:US13324201

    申请日:2011-12-13

    摘要: Physiological data, such as thoracic impedance data, can be obtained over a first time window to establish a baseline, or can be used to form one or more data clusters. Additional physiological data, such as thoracic impedance test data acquired over a later time window, can be obtained and compared to the baseline or data clusters to determine an indication of worsening heart failure. In an example, a quantitative attribute of one or more data clusters can be monitored and used to provide an indication of worsening heart failure. A posture discrimination metric can be obtained, such as using the physiological data obtained over the first time window. The additional physiological data, such as can be obtained over a second time window, can be compared to the posture discrimination metric to provide a patient posture status.

    摘要翻译: 可以在第一时间窗口中获得诸如胸部阻抗数据的生理数据以建立基线,或者可以用于形成一个或多个数据簇。 可以获得额外的生理数据,例如在稍后时间窗口上获取的胸部阻抗测试数据,并与基线或数据簇进行比较,以确定心脏衰竭恶化的指示。 在一个示例中,可以监视一个或多个数据集群的定量属性并用于提供恶化的心力衰竭的指示。 可以获得姿势辨别度量,例如使用在第一时间窗口中获得的生理数据。 可以将诸如在第二时间窗口上获得的附加生理数据与姿势辨别度量进行比较以提供患者姿势状态。