Atrial capture verification
    31.
    发明授权
    Atrial capture verification 有权
    心房捕捉验证

    公开(公告)号:US07587240B2

    公开(公告)日:2009-09-08

    申请号:US11012433

    申请日:2004-12-15

    IPC分类号: A61N1/365

    摘要: Methods and systems for classifying cardiac responses to pacing stimulation and/or preventing retrograde cardiac conduction are described. Following delivery of a pacing pulse to an atrium of the patient'heart during a cardiac cycle, the system senses in the atrium for a retrograde P-wave. The system classifies the atrial response to the pacing pulse based on detection of the retrograde P-wave. The system may also sense for an atrial evoked response and utilize the atrial evoked response in classifying the cardiac pacing response.

    摘要翻译: 描述了用于将心脏反应分类为起搏刺激和/或预防逆行心脏传导的方法和系统。 在心脏周期内将起搏脉搏递送到患者心脏的心房后,系统在心房感测逆行P波。 该系统基于逆行P波的检测将起搏脉冲的心房响应分类。 该系统还可以感知心房诱发反应并且利用心房诱发反应来分类心脏起搏反应。

    Method and apparatus for breaking pacemaker mediated bradycardia
    32.
    发明授权
    Method and apparatus for breaking pacemaker mediated bradycardia 有权
    破坏起搏器介导的心动过缓的方法和装置

    公开(公告)号:US07403817B2

    公开(公告)日:2008-07-22

    申请号:US10367647

    申请日:2003-02-14

    IPC分类号: A61N1/362

    CPC分类号: A61N1/3622

    摘要: A cardiac pacemaker programmed to pace in a demand mode with hysteresis is further programmed to recognize and correct a pacemaker mediated bradycardia. Such a pacemaker mediated bradycardia is the result of an idioventricular rhythm that occurs while hysteresis is operative and which inhibits the pacemaker from further pacing.

    摘要翻译: 心脏起搏器被编程为以迟滞的需求模式进行调节,进一步被编程为识别和纠正起搏器介导的心动过缓。 这种心脏起搏器介导的心动过缓是一种心律失常的结果,其发生在滞后作用的同时,抑制起搏器进一步起搏。

    Dynamic morphology based atrial automatic threshold
    33.
    发明申请
    Dynamic morphology based atrial automatic threshold 有权
    动态形态基于心房自动阈值

    公开(公告)号:US20080119905A1

    公开(公告)日:2008-05-22

    申请号:US11601217

    申请日:2006-11-17

    IPC分类号: A61N1/362

    CPC分类号: A61N1/371 A61N1/3712

    摘要: Methods and systems for performing capture threshold tests are described. During an initialization procedure a capture detection interval and capture detection threshold are determined based on peak values of cardiac signals sensed following the supracapture threshold initialization pulses. Following initialization, a plurality of pacing pulses to the atrium are delivered and the peak values of the cardiac signals sensed following each of the plurality of pacing pulses are determined. The peak values are compared to the pacing artifact threshold and the capture detection threshold. A timing of each of the peak values is compared to the capture detection interval. For each pacing pulse, discrimination between a captured response, a noncaptured response, and a fusion response is based on the peak value and timing comparisons.

    摘要翻译: 描述用于执行捕获阈值测试的方法和系统。 在初始化过程期间,捕获检测间隔和捕获检测阈值是基于超标准阈值初始化脉冲之后感测的心脏信号的峰值来确定的。 在初始化之后,传送到心房的多个起搏脉冲,并且确定在多个起搏脉冲之后检测到的心脏信号的峰值。 将峰值与起搏伪像阈值和捕获检测阈值进行比较。 将每个峰值的定时与捕获检测间隔进行比较。 对于每个起搏脉冲,捕获的响应,非捕获响应和融合响应之间的区别基于峰值和时序比较。