Method and apparatus for detection and treatment of tachycardia and fibrillation
    1.
    发明授权
    Method and apparatus for detection and treatment of tachycardia and fibrillation 有权
    用于检测和治疗心动过速和颤动的方法和装置

    公开(公告)号:US06879856B2

    公开(公告)日:2005-04-12

    申请号:US09814251

    申请日:2001-03-21

    IPC分类号: A61N1/362 A61N1/39 A61N1/368

    CPC分类号: A61N1/3622 A61N1/3962

    摘要: The invention relates to devices that detect and/or treat tachyarrhythmias. The invention includes software systems that distinguish among various tachyarrhythmias in order to provide treatment for specific tachyarrhythmias. One aspect of the invention employs a methodology to provisionally detect ventricular tachycardia and/or fibrillation and thereafter apply a discrimination function to a series of measured intervals preceding the provisional detection. Discrimination is accomplished by sorting the intervals preceding provisional detection into bins corresponding to interval ranges and examining the relative distribution of the intervals within the bins.

    摘要翻译: 本发明涉及检测和/或治疗快速性心律失常的装置。 本发明包括区分各种快速性心律失常以提供针对特定快速性心律失常的治疗的软件系统。 本发明的一个方面采用临时检测室性心动过速和/或原纤维化的方法,然后对临时检测之前的一系列测量间隔应用鉴别功能。 通过将临时检测之前的间隔分类到对应于间隔范围的箱中并检查箱内的间隔的相对分布来实现歧视。

    Impedance variability analysis to identify lead-related conditions
    3.
    发明授权
    Impedance variability analysis to identify lead-related conditions 有权
    阻抗变异性分析来识别铅相关条件

    公开(公告)号:US08644931B2

    公开(公告)日:2014-02-04

    申请号:US12180304

    申请日:2008-07-25

    IPC分类号: A61N1/00

    摘要: In general, the disclosure relates to techniques for calculating mean impedance values and impedance variability values to detect a possible condition with a lead or device-lead pathway or connection. In one example, a device may be configured to determine an impedance value for an electrical path based on a plurality of measured impedance values for the electrical path, wherein the electrical path comprises a plurality of electrodes, and to determine an impedance variability value based on at least one of the plurality of measured impedance values. The device may be further configured to determine a threshold value based on the determined impedance value and the impedance variability value, compare a newly measured impedance value for the electrical path to the threshold value, and indicate a possible condition of the electrical path based on the comparison.

    摘要翻译: 通常,本公开涉及用于计算平均阻抗值和阻抗变异性值以用于检测具有引线或器件引导路径或连接的可能状况的技术。 在一个示例中,设备可以被配置为基于用于电路径的多个测量的阻抗值来确定电路径的阻抗值,其中电路径包括多个电极,并且基于以下方式确定阻抗变异性值: 所述多个测量的阻抗值中的至少一个。 该装置还可以被配置为基于所确定的阻抗值和阻抗变异性值来确定阈值,将新测量的电通路的阻抗值与阈值进行比较,并且基于该路径指示电路径的可能状态 比较。

    IMPEDANCE VARIABILITY ANALYSIS TO IDENTIFY LEAD-RELATED CONDITIONS
    4.
    发明申请
    IMPEDANCE VARIABILITY ANALYSIS TO IDENTIFY LEAD-RELATED CONDITIONS 有权
    阻碍可变性分析来识别与铅相关的条件

    公开(公告)号:US20090299432A1

    公开(公告)日:2009-12-03

    申请号:US12180304

    申请日:2008-07-25

    IPC分类号: A61N1/37 A61B5/053

    摘要: In general, the disclosure relates to techniques for calculating mean impedance values and impedance variability values to detect a possible condition with a lead or device-lead pathway or connection. In one example, a device may be configured to determine an impedance value for an electrical path based on a plurality of measured impedance values for the electrical path, wherein the electrical path comprises a plurality of electrodes, and to determine an impedance variability value based on at least one of the plurality of measured impedance values. The device may be further configured to determine a threshold value based on the determined impedance value and the impedance variability value, compare a newly measured impedance value for the electrical path to the threshold value, and indicate a possible condition of the electrical path based on the comparison.

    摘要翻译: 通常,本公开涉及用于计算平均阻抗值和阻抗变异性值以用于检测具有引线或器件引导路径或连接的可能状况的技术。 在一个示例中,设备可以被配置为基于用于电路径的多个测量的阻抗值来确定电路径的阻抗值,其中电路径包括多个电极,并且基于以下方式确定阻抗变异性值: 所述多个测量的阻抗值中的至少一个。 该装置还可以被配置为基于所确定的阻抗值和阻抗变异性值来确定阈值,将新测量的电通路的阻抗值与阈值进行比较,并且基于该路径指示电路径的可能状态 比较。

    Non-sustained tachyarrhythmia analysis to identify lead related condition
    7.
    发明授权
    Non-sustained tachyarrhythmia analysis to identify lead related condition 有权
    非持续性快速性心律失常分析,以确定铅相关状况

    公开(公告)号:US08660643B2

    公开(公告)日:2014-02-25

    申请号:US13569354

    申请日:2012-08-08

    IPC分类号: A61N1/365

    摘要: Techniques for determining whether a lead related condition exists based on analysis of a cardiac electrical signal associated with a non-sustained tachyarrhythmia (NST) are described. In some examples, the techniques include determining the duration of intervals between consecutive cardiac events, e.g., R-R intervals, during an NST. The techniques may further include determining one or more metrics based on the durations of the intervals during the NST. Examples of metrics include an average, a minimum, a maximum, a range, a median, a mode, or a mean. A lead related condition is identified based on the values of the one or more metrics, e.g., by comparison to respective thresholds. In some examples, an alert is provided or a therapy modification is suggested if a lead related condition is identified.

    摘要翻译: 描述了基于与非持续性快速性心律失常(NST)相关的心脏电信号的分析来确定是否存在与铅相关的病症的技术。 在一些示例中,技术包括在NST期间确定连续心脏事件之间的间隔的持续时间,例如R-R间隔。 所述技术还可以包括基于在NST期间间隔的持续时间确定一个或多个度量。 度量的示例包括平均值,最小值,最大值,范围,中值,模式或平均值。 基于一个或多个度量的值,例如通过与相应的阈值进行比较来识别引线相关条件。 在一些示例中,如果识别出铅相关病症,则提供警报或建议进行治疗修改。

    NON-SUSTAINED TACHYARRHYTHMIA ANALYSIS TO IDENTIFY LEAD RELATED CONDITION
    9.
    发明申请
    NON-SUSTAINED TACHYARRHYTHMIA ANALYSIS TO IDENTIFY LEAD RELATED CONDITION 有权
    非持续性TACHYARRHYTHMIA分析鉴定领导相关条件

    公开(公告)号:US20110098766A1

    公开(公告)日:2011-04-28

    申请号:US12606899

    申请日:2009-10-27

    IPC分类号: A61N1/365

    摘要: Techniques for determining whether a lead related condition exists based on analysis of a cardiac electrical signal associated with a non-sustained tachyarrhythmia (NST) are described. In some examples, the techniques include determining the duration of intervals between consecutive cardiac events, e.g., R-R intervals, during an NST. The techniques may further include determining one or more metrics based on the durations of the intervals during the NST. Examples of metrics include an average, a minimum, a maximum, a range, a median, a mode, or a mean. A lead related condition is identified based on the values of the one or more metrics, e.g., by comparison to respective thresholds. In some examples, an alert is provided or a therapy modification is suggested if a lead related condition is identified.

    摘要翻译: 描述了基于与非持续性快速性心律失常(NST)相关的心脏电信号的分析来确定是否存在与铅相关的病症的技术。 在一些示例中,技术包括在NST期间确定连续心脏事件之间的间隔的持续时间,例如R-R间隔。 所述技术还可以包括基于在NST期间间隔的持续时间确定一个或多个度量。 度量的示例包括平均值,最小值,最大值,范围,中值,模式或平均值。 基于一个或多个度量的值,例如通过与相应的阈值进行比较来识别引线相关条件。 在一些示例中,如果识别出铅相关病症,则提供警报或建议进行治疗修改。

    IDENTIFICATION AND REMEDIATION OF OVERSENSED CARDIAC EVENTS USING FAR-FIELD ELECTROGRAMS
    10.
    发明申请
    IDENTIFICATION AND REMEDIATION OF OVERSENSED CARDIAC EVENTS USING FAR-FIELD ELECTROGRAMS 有权
    使用现场电子技术监测过的心脏事件的识别和治疗

    公开(公告)号:US20100106209A1

    公开(公告)日:2010-04-29

    申请号:US12260560

    申请日:2008-10-29

    IPC分类号: A61N1/368

    CPC分类号: A61N1/3704 A61N1/3622

    摘要: In general, the disclosure is directed to techniques for identification and remediation of oversensed cardiac events using far-field electrograms (FFEGMs). Identification of oversensed cardiac events can be used in an ICD to prevent ventricular fibrillation (VF) detection, and thereby avoid delivery of an unnecessary defibrillation shock. Alternatively, or additionally, identification of oversensed cardiac events can be used in an ICD to support delivery of bradycardia pacing during an oversensing condition. In some cases, bradycardia pacing delivered in response to detection of oversensed cardiac events may include pacing pulses from multiple vectors to provide redundancy in the event the oversensing may be due to a lead-related condition.

    摘要翻译: 一般来说,本公开涉及使用远场电描记图(FFEGM)识别和补救超级心脏事件的技术。 识别超重心脏事件可用于ICD以防止心室颤动(VF)检测,从而避免不必要的除颤休克的传递。 或者或另外,过度心脏事件的识别可用于ICD以支持在过度状态期间心动过缓起搏的传送。 在一些情况下,响应于超大心脏事件的检测而发送的心动过缓起搏可以包括来自多个向量的起搏脉冲,以在超引线可能由于引线相关状况而提供冗余。