利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

6 条记录 (耗时 0.021 秒)

    Refractory period tracking and arrhythmia detection
    1.
    发明申请
    Refractory period tracking and arrhythmia detection 有权
    难治期跟踪和心律失常检测

    公开(公告)号：US20050075676A1

    公开(公告)日：2005-04-07

    申请号：US10680528

    申请日：2003-10-07

    申请人： D. Deno ,  Ruth Klepfer ,  William Havel ,  David Schneider ,  Vincent Splett

    发明人： D. Deno ,  Ruth Klepfer ,  William Havel ,  David Schneider ,  Vincent Splett

    IPC分类号： A61N1/362 ,  A61N1/365

    CPC分类号： A61N1/365 ,  A61N1/3622

    摘要： Techniques for estimating the temporal refractory period of a heart, for adjusting a parameter for delivery of extra-systolic stimulation (ESS) therapy and for detecting an arrhythmia during delivery of ESS therapy are disclosed. In some embodiments, probe pulses are periodically delivered to estimate the location of the end boundary of the refractory period, and accordingly estimate its length. In some embodiments, the parameter is adjusted based on estimated length of the refractory period. For example, an extra-systolic interval (ESI) for delivery of ESS is adjusted to be a fixed interval longer than estimated lengths of the refractory period. In other embodiments, the parameter is adjusted based on a measured delay (or latency) between delivery of an ESS pulse and detection of an evoked response resulting from the pulse. In some embodiments, delays between delivery of an ESS pulse and detection of a subsequent depolarization are monitored to detect an arrhythmia.

    摘要翻译： 公开了用于估计心脏的时间不应期的技术，用于调整用于递送收缩期刺激（ESS）治疗的参数和用于在递送ESS治疗期间检测心律失常的技术。 在一些实施例中，周期性地递送探针脉冲以估​​计不应期的末端边界的位置，并因此估计其长度。 在一些实施例中，基于估计的不应期的长度来调整参数。 例如，用于递送ESS的收缩期间期（ESI）被调整为比不应期的估计长度更长的固定间隔。 在其他实施例中，基于在递送ESS脉冲和从脉冲产生的诱发响应的检测之间的测量延迟（或等待时间）来调整参数。 在一些实施例中，监测递送ESS脉冲和随后去极化的检测之间的延迟以检测心律失常。

    Cardiac pacing modality having improved blanking, timing, and therapy delivery methods for extra-systolic stimulation pacing therapy
    2.
    发明申请
    Cardiac pacing modality having improved blanking, timing, and therapy delivery methods for extra-systolic stimulation pacing therapy 有权
    心脏起搏模式具有改善的消隐，时机和治疗收费刺激起搏治疗方法

    公开(公告)号：US20050090872A1

    公开(公告)日：2005-04-28

    申请号：US10692990

    申请日：2003-10-24

    申请人： D. Deno ,  Vincent Splett ,  Jeffrey Gillberg ,  Glenn Zillmer ,  Ruth Klepfer ,  Karen Kleckner

    发明人： D. Deno ,  Vincent Splett ,  Jeffrey Gillberg ,  Glenn Zillmer ,  Ruth Klepfer ,  Karen Kleckner

    IPC分类号： A61N20060101 ,  A61N1/362 ,  A61N1/365

    CPC分类号： A61N1/365 ,  A61N1/3627

    摘要： The present invention relates to the secure delivery of an extra-systolic stimulation (ESS) therapy to treat cardiac dysfunction that employs atrial and/or ventricular extra-systoles via pacing-like stimulation of the heart. These extra-systoles must be timed correctly to achieve beneficial effects on myocardial mechanics (benefit) while maintaining an extremely low level of risk of arrhythmia induction and excellent ICD-like arrhythmia sensing and detection (security). Further experience with ESS has led to improved implementation methods that depend on better blanking, ESS stimulation timing (of an “extra-systolic interval” or ESI), and ESS therapy delivery options and guidance. These methods may be employed individually or in combinations in an external or implantable ESS therapy delivery device.

    摘要翻译： 本发明涉及一种收缩期刺激（ESS）疗法的安全递送，以治疗心脏功能障碍，其通过心脏起搏样刺激使用心房和/或心室外的心脏。 这些额外的收缩期必须正确定时，以获得对心肌力学（益处）的有益影响，同时保持心律失常诱导和优异的ICD样心律失常感知和检测（安全性）的极低水平的风险。 ESS的进一步经验导致改进的实施方法取决于更好的消隐，ESS刺激时间（“收缩期间期”或ESI）和ESS治疗递送选项和指导。 这些方法可以在外部或可植入的ESS治疗递送装置中单独使用或组合使用。

    Activation recovery interval for classification of cardiac beats in an implanted device
    5.
    发明申请
    Activation recovery interval for classification of cardiac beats in an implanted device 审中-公开
    用于植入装置中心跳节拍分类的激活恢复间隔

    公开(公告)号：US20050038478A1

    公开(公告)日：2005-02-17

    申请号：US10638653

    申请日：2003-08-11

    申请人： Ruth Klepfer ,  John Burnes

    发明人： Ruth Klepfer ,  John Burnes

    IPC分类号： A61N1/362

    CPC分类号： A61N1/3622

    摘要： The present invention provides a system and method for classifying cardiac beats based on activation-recovery intervals (ARIs) or an ARI-related parameter such as the spatial dispersion of activation, recovery or ARIs. The beat classification method may be used in monitoring and detecting cardiac rhythms and/or for controlling a cardiac stimulation therapy. The beat classification method includes acquiring a reference ARI for one or more known types of cardiac beats; measuring the activation-recovery interval of an unknown cardiac beat during cardiac activity monitoring; comparing the measured activation-recovery interval to the stored reference ARI(s); and classifying the cardiac beat based on the comparison between the measured ARI and the reference ARI(s).

    摘要翻译： 本发明提供了一种用于基于激活恢复间隔（ARI）或ARI相关参数（例如激活，恢复或ARI的空间分散）来分类心跳的系统和方法。 节拍分类方法可用于监测和检测心律和/或用于控制心脏刺激疗法。 节拍分类方法包括获取一种或多种已知类型心跳的参考ARI; 在心脏活动监测期间测量未知心跳的活化恢复间隔; 将测量的激活恢复间隔与存储的参考ARI进行比较; 并且基于测量的ARI和参考ARI之间的比较来分类心跳。