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    • 11. 发明授权
    • Delivery of CRT therapy during AT/AF termination
    • 在AT / AF终止期间交付CRT治疗
    • US07953482B2
    • 2011-05-31
    • US12389680
    • 2009-02-20
    • Michael F. Hess
    • Michael F. Hess
    • A61N1/362
    • A61N1/3627A61N1/3622A61N1/3925A61N1/3956A61N1/3962
    • In some embodiments, a method for operating a cardiac rhythm management device may include one or more of the following steps: (a) sensing atrial depolarizations through an implanted atrial electrode, (b) administering a sequential CRT pacing therapy in a sequential CRT pacing mode to a left and right ventricle of a heart of a patient via implanted ventricular electrodes in a sequential bi-ventricular fashion, (c) switching from the sequential CRT pacing mode to a simultaneous CRT pacing mode, (d) administering a simultaneous CRT pacing therapy in the simultaneous CRT pacing mode to the left and right ventricle in a simultaneous bi-ventricular fashion, (e) analyzing the sensed atrial depolarizations to detect the presence of an atrial arrhythmia, (f) analyzing the sensed atrial depolarizations while in the sequential CRT pacing mode to detect the presence of atrial arrhythmia, and (g) sensing ventricular depolarizations of the left and the right ventricle.
    • 在一些实施例中,用于操作心律管理装置的方法可以包括以下步骤中的一个或多个:(a)通过植入的心房电极感测心房去极化,(b)以连续的CRT起搏模式施用连续的CRT起搏治疗 (c)从连续的CRT起搏模式切换到同步的CRT起搏模式,(d)同时进行CRT起搏治疗,其中, (e)分析感测到的心房去极化以检测心房心律失常的存在,(f)分析感染的心房去极化,同时在顺序CRT中 起搏模式来检测心律失常的存在,(g)感测左心室和右心室的心室去极化。
    • 13. 发明授权
    • Method and apparatus for variable rate cardiac stimulation
    • 可变率心脏刺激的方法和装置
    • US5725561A
    • 1998-03-10
    • US489262
    • 1995-06-09
    • John C. StroebelMichael F. HessH. Toby Markowitz
    • John C. StroebelMichael F. HessH. Toby Markowitz
    • A61N1/365A61N1/362A61N1/368
    • A61N1/3622A61N1/368
    • A method and apparatus for variable rate cardiac stimulation, wherein sudden drops in the rate of delivery of stimulation pulses are avoided by means of rate smoothing and peak rate support functions. In one embodiment, circuitry in a cardiac pulse generator detects atrial events and maintains an updated value of the A-A time intervals between certain atrial events. If a preset ratio or total of these A-A intervals are found to have been shorter than the updated value by at a least a predetermined amount of time, a rate smoothing function is activated wherein the rate of delivery of stimulating pulses is prevented from changing, from cycle to cycle, by more than a predetermined maximum amount. A peak rate support function preferably employs the same updated value in the computation of "escape" intervals. Following the latest A-A interval, if that A-A interval is less than the updated value, then the updated value is used as the new escape interval. If the latest A-A interval is greater than or equal to the updated value but less than the previous updated value, the current escape interval is used as the new escape interval. If the latest A-A interval is less than both the previous updated value and the current updated value, the value updated is used as the new escape interval, and the pulse generator enters a decay mode wherein the escape interval is gradually and incrementally lengthened to prevent sudden changes in the rate of delivery of stimulation pulses.
    • 用于可变速率心脏刺激的方法和装置,其中通过速率平滑和峰值速率支持功能来避免刺激脉冲的传送速率的突然下降。 在一个实施例中,心脏脉搏发生器中的电路检测心房事件并维持某些心房事件之间的A-A时间间隔的更新值。 如果这些AA间隔的预设比例或总和被发现至少比预定时间量更新的值短,则激活速率平滑功能,其中防止刺激脉冲的传送速率从 循环到循环,超过预定的最大量。 峰值速率支持功能优选地在计算“逃逸”间隔时使用相同的更新值。 按照最新的A-A间隔,如果A-A间隔小于更新的值,则更新的值将用作新的转义间隔。 如果最新的A-A间隔大于或等于更新值但小于先前更新的值,则将使用当前转义间隔作为新的转义间隔。 如果最近的AA间隔小于先前更新值和当前更新值,则更新的值被用作新的转义间隔,并且脉冲发生器进入衰减模式,其中逃逸间隔逐渐且逐渐地延长以防止突然 刺激脉冲传送速率的变化。
    • 15. 发明授权
    • Mechanical ventricular pacing non-capture detection for a refractory period stimulation (RPS) pacing therapy using at least one lead-based accelerometer
    • 使用至少一个基于铅的加速度计进行难治性周期刺激(RPS)起搏治疗的机械性心室起搏非捕获检测
    • US07787942B2
    • 2010-08-31
    • US11742210
    • 2007-04-30
    • Edward ChinchoyMichael F. Hess
    • Edward ChinchoyMichael F. Hess
    • A61B5/04
    • A61N1/3627A61N1/3712
    • A system and method for monitoring at least one chamber of a heart (e.g., a left ventricular chamber) during delivery of a refractory period stimulation (RPS) therapy to determine if the desired non-capture (i.e., lack of ventricular mechanical capture due to refractory period stimulation) occurs. The system includes an implantable or external cardiac stimulation device in association with a set of leads such as epicardial, endocardial, and/or coronary sinus leads equipped with motion sensor(s). The device receives and processes acceleration sensor signals to determine a signal characteristic indicative of chamber capture due to pacing stimulus delivery, non-capture due to RPS therapy delivery, and/or contractile status based on the qualities of evoked response to pacing stimulation.
    • 一种用于在递送不期期刺激(RPS)治疗期间监测心脏(例如,左心室)的至少一个腔室的系统和方法,以确定是否期望的非捕获(即,由于缺乏心室机械捕获 难治期刺激)发生。 该系统包括与一组引线相关联的可植入或外部心脏刺激装置,例如配备有运动传感器的心外膜,心内膜和/或冠状窦导联。 该装置接收并处理加速度传感器信号以确定指示由于起搏刺激递送,由于RPS治疗递送而导致的非捕获和/或基于对起搏刺激的诱发响应的质量的收缩状态的室捕获的信号特征。
    • 16. 发明申请
    • DELIVERY OF CRT THERAPY DURING AT/AF TERMINATION
    • 在AT / AF终止期间交付CRT治疗
    • US20090182390A1
    • 2009-07-16
    • US12389680
    • 2009-02-20
    • Michael F. Hess
    • Michael F. Hess
    • A61N1/365
    • A61N1/3627A61N1/3622A61N1/3925A61N1/3956A61N1/3962
    • In some embodiments, a method for operating a cardiac rhythm management device may include one or more of the following steps: (a) sensing atrial depolarizations through an implanted atrial electrode, (b) administering a sequential CRT pacing therapy in a sequential CRT pacing mode to a left and right ventricle of a heart of a patient via implanted ventricular electrodes in a sequential bi-ventricular fashion, (c) switching from the sequential CRT pacing mode to a simultaneous CRT pacing mode, (d) administering a simultaneous CRT pacing therapy in the simultaneous CRT pacing mode to the left and right ventricle in a simultaneous bi-ventricular fashion, (e) analyzing the sensed atrial depolarizations to detect the presence of an atrial arrhythmia, (f) analyzing the sensed atrial depolarizations while in the sequential CRT pacing mode to detect the presence of atrial arrhythmia, and (g) sensing ventricular depolarizations of the left and the right ventricle.
    • 在一些实施例中,用于操作心律管理装置的方法可以包括以下步骤中的一个或多个:(a)通过植入的心房电极感测心房去极化,(b)以连续的CRT起搏模式施用连续的CRT起搏治疗 (c)从连续的CRT起搏模式切换到同步的CRT起搏模式,(d)同时进行CRT起搏治疗,其中, (e)分析感测到的心房去极化以检测心房心律失常的存在,(f)分析感染的心房去极化,同时在顺序CRT中 起搏模式来检测心律失常的存在,(g)感测左心室和右心室的心室去极化。
    • 17. 发明授权
    • Rate stabilization with maintenance of intrinsic ventricular response
    • 速率稳定与维持内在的心室反应
    • US06845268B2
    • 2005-01-18
    • US10090053
    • 2002-02-28
    • Michael R. S. HillMichael F. Hess
    • Michael R. S. HillMichael F. Hess
    • A61N1/362A61N1/365
    • A61N1/3622
    • A device implemented software system for use with atrial and/or ventricular rate stabilization to adjust DDD/R rate stabilization while maintaining intrinsic ventricular response timing to overdrive the intrinsic sinus (atrial) rate. Specifically, the algorithm is directed toward maintaining ventricular activation/contraction sequence while improving atrial and ventricular hemodynamics. Generally, the PAV interval is prolonged subsequent to a sensed premature beat. In an ultimate embodiment, the algorithm enables extension of the PAV interval subsequent to a non-conducted premature atrial event. The extension of the PAV interval allows for the simultaneous smoothing of the atrial and ventricular rates.
    • 一种设备实现的软件系统用于心房和/或心室速率稳定以调节DDD / R速率稳定,同时保持内在的心室响应时间以超速内在窦(心房)率。 具体地,该算法旨在维持心室激活/收缩序列,同时改善心房和心室血流动力学。 通常,在感测到的过早搏动之后PAV间隔延长。 在最终实施例中,该算法能够在非传导性早搏心房事件之后扩展PAV间期。 PAV间期的延长允许同时平滑心房和心室率。
    • 20. 发明授权
    • Dual chamber pacing system and method with continual adjustment of the
AV escape interval so as to maintain optimized ventricular pacing for
treating cardiomyopathy
    • 双室起搏系统和方法,连续调整AV逃逸间隔,以保持优化的心室起搏治疗心肌病
    • US5626620A
    • 1997-05-06
    • US391883
    • 1995-02-21
    • Robert S. KievalMichael F. Hess
    • Robert S. KievalMichael F. Hess
    • A61N1/368A61N1/362A61N1/37A61N1/36
    • A61N1/3712A61N1/3627A61N1/3682
    • A dual chamber pacemaker is provided having capability for adjusting the AV escape interval so as to optimize the timing of delivered ventricular pace pulses for therapy of patients with cardiomyopathy. The pacemaker system continually monitors to determine when a delivered pace pulse results in a fusion beat, and periodically adjusts the AV escape interval in accordance with the percentage or rate of incidence of such fusion beats. In one specific embodiment, the pacing system determines the percentage of delivered ventricular pace pulses which are followed by fusion beats over a predetermined number of intervals, and decrements AV escape interval when such percentage is not below a predetermined minimum. The pacing system also periodically increments AV escape interval when the rate of fusion beats is acceptable, thereby providing a closed loop system for maintaining the AV interval at an optimally long value consistent with maximizing full capture by delivered ventricular pace pulses. In another embodiment, the V--V escape interval of a non-tracking mode pacemaker is controlled to optimize pre-excitation of the ventricle.
    • 提供了一种双室起搏器,具有调整AV逃逸间隔的能力,从而优化用于治疗心肌病患者的输送心室起搏脉冲的时间。 起搏器系统持续监测以确定何时传送的步态脉冲导致融合节拍,并且根据这种融合节拍的百分比或发生率周期性地调整AV逃逸间隔。 在一个具体实施例中,起搏系统确定所提供的心室起搏脉冲的百分比,随后在预定数量的间隔上进行融合搏动,并且当该百分比不低于预定最小值时减小AV逃逸间隔。 当融合搏动速率可接受时,起搏系统还周期性地增加AV逃逸间隔,从而提供闭环系统,用于将AV间隔保持在最佳长度值,与通过传递的心室起搏脉冲最大化完全捕获相一致。 在另一个实施例中,控制非跟踪模式起搏器的V-V逃逸间隔以优化心室的预激发。