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    • 43. 发明授权
    • Multiple electrode vectors for implantable cardiac treatment devices
    • 用于可植入心脏治疗装置的多个电极载体
    • US07953489B2
    • 2011-05-31
    • US12627861
    • 2009-11-30
    • Jay A. WarrenGust H. Bardy
    • Jay A. WarrenGust H. Bardy
    • A61N1/00
    • A61B5/0424A61B5/0402A61B5/042A61B5/04288A61B5/076A61B5/7207A61N1/3622A61N1/3925
    • 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.
    • 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。
    • 48. 发明申请
    • Adaptive Shock Delivery in an Implantable Cardiac Stimulus Device
    • 可植入心脏刺激装置中的自适应冲击输送
    • US20090198296A1
    • 2009-08-06
    • US12363425
    • 2009-01-30
    • Rick SANGHERAJay A. Warren
    • Rick SANGHERAJay A. Warren
    • A61N1/39
    • A61N1/3956A61N1/3686
    • Methods and devices that are configured to deliver cardiac stimuli in a particular fashion. In an illustrative embodiment, a method is used wherein a first stimulus is delivered using a first polarity, and, if the first stimulus fails to successfully convert an arrhythmia, a second stimulus having a second polarity that is different from or opposite of the first polarity is then delivered. Subsequent stimuli, if needed, are delivered in a continuing alternating-polarity manner. The first polarity may be determined by observing whether successfully-converting stimulus has been delivered previously and, if so, the polarity of the most recent stimulus that resulted in successful conversion is used as the first polarity. In additional embodiments, electrode configuration may be changed instead of or in addition to polarity, following unsuccessful stimulus delivery. Devices configured to perform such methods are included in additional illustrative embodiments.
    • 被配置为以特定方式递送心脏刺激的方法和装置。 在说明性实施例中,使用其中使用第一极性传送第一刺激的方法,并且如果第一刺激不能成功转换心律失常,则具有与第一极性不同或相反的第二极性的第二刺激 然后交付。 如果需要,随后的刺激以连续的交替极性方式递送。 第一极性可以通过观察成功转换刺激是否已经被传递来确定,如果是,则将导致成功转换的最近的刺激的极性用作第一极性。 在另外的实施例中,在不成功的刺激递送之后,可以改变电极配置而不是极性或除了极性之外。 被配置为执行这些方法的装置包括在另外的说明性实施例中。