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    Methods and devices for accurately classifying cardiac activity
    45.
    发明授权
    Methods and devices for accurately classifying cardiac activity 有权
    准确分类心脏活动的方法和装置

    公开(公告)号：US08929977B2

    公开(公告)日：2015-01-06

    申请号：US14096285

    申请日：2013-12-04

    申请人： Cameron Health, Inc.

    发明人： Venugopal Allavatam ,  Surekha Palreddy ,  Rick Sanghera ,  Jay A. Warren

    IPC分类号： A61B5/0452 ,  A61N1/37 ,  A61B5/04 ,  A61N1/39 ,  A61B5/00

    CPC分类号： A61N1/3987 ,  A61B5/024 ,  A61B5/04014 ,  A61B5/0452 ,  A61B5/6847 ,  A61B5/726 ,  A61N1/3704 ,  A61N1/3956

    摘要： Methods, systems, and devices for signal analysis in an implanted cardiac monitoring and treatment device such as an implantable cardioverter defibrillator. In illustrative examples, captured data including detected events is analyzed to identify likely overdetection of cardiac events. In some illustrative examples, when overdetection is identified, data may be modified to correct for overdetection, to reduce the impact of overdetection, or to ignore overdetected data. New methods for organizing the use of morphology and rate analysis in an overall architecture for rhythm classification and cardiac signal analysis are also discussed.

    摘要翻译： 植入心脏监测和治疗装置如植入式心律转复除颤器中的信号分析方法，系统和装置。 在说明性示例中，分析包括检测到的事件的捕获数据以识别心脏事件的可能过度检测。 在一些说明性示例中，当识别出过度检测时，可以修改数据以校正过度检测，以减少过度检测的影响或忽略过度检测的数据。 还讨论了在节律分类和心脏信号分析的整体架构中组织使用形态学和速率分析的新方法。

    VECTOR SWITCHING IN AN IMPLANTABLE CARDIAC STIMULUS SYSTEM
    47.
    发明申请
    VECTOR SWITCHING IN AN IMPLANTABLE CARDIAC STIMULUS SYSTEM 审中-公开
    矢量切换在可移植的心脏刺激系统中

    公开(公告)号：US20140350618A1

    公开(公告)日：2014-11-27

    申请号：US14452859

    申请日：2014-08-06

    申请人： Cameron Health, Inc.

    发明人： Jay A. Warren ,  Gust H. Bardy

    IPC分类号： A61N1/39 ,  A61N1/37

    CPC分类号： A61N1/3925 ,  A61B5/04011 ,  A61B5/042 ,  A61B5/0424 ,  A61B5/7203 ,  A61B5/7207 ,  A61N1/3622 ,  A61N1/3706 ,  A61N1/3987

    摘要： The implantable cardiac treatment system of the present invention is capable of choosing the most appropriate electrode vector to sense within a particular patient. In certain embodiments, the implantable cardiac treatment system determines the most appropriate electrode vector for continuous sensing based on which electrode vector results in the greatest signal amplitude, or some other useful metric such as signal-to-noise ratio (SNR). The electrode vector possessing the highest quality as measured using the metric is then set as the default electrode vector for sensing. Additionally, in certain embodiments of the present invention, a next alternative electrode vector is selected based on being generally orthogonal to the default electrode vector. In yet other embodiments of the present invention, the next alternative electrode vector is selected based on possessing the next highest quality metric after the default electrode vector. In some embodiments, if analysis of the default vector is ambiguous, the next alternative electrode vector is analyzed to reduce ambiguity.

    摘要翻译： 本发明的可植入心脏治疗系统能够选择最合适的电极载体以在特定患者体内感测。 在某些实施例中，可植入心脏治疗系统基于哪个电极向量导致最大的信号幅度或诸如信噪比（SNR）的一些其他有用的度量来确定用于连续感测的最合适的电极向量。 使用度量测量的具有最高质量的电极矢量然后被设置为用于感测的默认电极矢量。 另外，在本发明的某些实施例中，基于大致正交于默认电极向量来选择下一个备选电极矢量。 在本发明的其它实施例中，基于在默认电极向量之后拥有下一个最高质量度量来选择下一个备选电极矢量。 在一些实施例中，如果默认矢量的分析是不明确的，则分析下一个替代电极矢量以减少模糊度。