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    • 7. 发明授权
    • Pacing therapy adjustment based on ventriculo-atrial delay
    • 基于心房 - 心房延迟的起搏治疗调整
    • US08755881B2
    • 2014-06-17
    • US12363439
    • 2009-01-30
    • Daniel R. KaiserNicholas D. SkadsbergSteven R. HornbergerThomas J. Mullen
    • Daniel R. KaiserNicholas D. SkadsbergSteven R. HornbergerThomas J. Mullen
    • A61N1/365A61N1/368
    • A61N1/368A61N1/3622A61N1/3682
    • Techniques for adjusting pacing therapy based on ventriculo-atrial delay are described herein. These techniques may be used to control ventricular filling times during the delivery of pacing therapy. In some examples, a device or system delivers pre-excitation fusion pacing therapy to a ventricular chamber, determines a ventriculo-atrial delay interval for the ventricular chamber for at least one cardiac cycle, and adjusts the pacing therapy delivered by the implantable medical device to compensate for decreased ventricular filling time when the ventriculo-atrial delay interval is less than a threshold. In some examples, the device or system may adjust the pacing therapy by decreasing a pacing rate of the implantable medical device, increasing a pre-excitation interval for pacing of the ventricular chamber, and/or switching from a fusion pacing mode to a biventricular pacing mode.
    • 本文描述了基于心房 - 心房延迟来调节起搏治疗的技术。 这些技术可用于控制起搏治疗期间的心室充盈时间。 在一些示例中,装置或系统将预激发融合起搏治疗递送至心室,确定心室至少一个心动周期的心房 - 心房延迟间隔,并调整由可植入医疗装置递送的起搏疗法 补偿当心室 - 心房延迟间隔小于阈值时心室充盈时间减少。 在一些示例中,装置或系统可以通过降低可植入医疗装置的起搏速率,增加心室的起搏间隔和/或从融合起搏模式切换到双心室起搏来调节起搏治疗 模式。
    • 8. 发明授权
    • Pre-excitation stimulus timing based on mechanical event
    • 基于机械事件的预激励刺激时序
    • US08423141B2
    • 2013-04-16
    • US12363147
    • 2009-01-30
    • Daniel R. Kaiser
    • Daniel R. Kaiser
    • A61N1/365
    • A61N1/3627A61N1/36564A61N1/36578A61N1/3682
    • Techniques for determining when to deliver a pre-excitation signal to damaged cardiac tissue, e.g., infarct tissue, of a ventricle during cardiac pacing are described. A medical device detects an intrinsic or paced atrial depolarization, and then detects a subsequent mechanical event, e.g., contraction, in a ventricle. As examples, the mechanical event may be detected by measuring ventricular movement, or changes in intracardiac or systemic blood pressure. The medical device determines an interval between the atrial depolarization and the ventricular mechanical event, which may be referred to as an A-Vm interval. By subtracting a pre-excitation interval (PEI) from the A-Vm, the medical device determines an A-V interval between an atrial depolarization and delivery of the pre-excitation signal.
    • 描述了用于在心脏起搏期间确定何时向心脏组织(例如心肌组织)传递预激发信号的技术。 医疗装置检测内在或节奏的心房去极化,然后检测心室中随后的机械事件,例如收缩。 作为示例,机械事件可以通过测量心室移动或心脏内或全身血压的变化来检测。 医疗设备确定心房去极化和心室机械事件之间的间隔,其可被称为A-Vm间隔。 通过从A-Vm中减去预激励间隔(PEI),医疗设备确定心房去极化和预激励信号传递之间的A-V间隔。
    • 10. 发明申请
    • PRE-EXCITATION STIMULUS TIMING BASED ON MECHANICAL EVENT
    • 基于机械事件的预激励时序
    • US20100198294A1
    • 2010-08-05
    • US12363147
    • 2009-01-30
    • Daniel R. Kaiser
    • Daniel R. Kaiser
    • A61N1/365
    • A61N1/3627A61N1/36564A61N1/36578A61N1/3682
    • Techniques for determining when to deliver a pre-excitation signal to damaged cardiac tissue, e.g., infarct tissue, of a ventricle during cardiac pacing are described. A medical device detects an intrinsic or paced atrial depolarization, and then detects a subsequent mechanical event, e.g., contraction, in a ventricle. As examples, the mechanical event may be detected by measuring ventricular movement, or changes in intracardiac or systemic blood pressure. The medical device determines an interval between the atrial depolarization and the ventricular mechanical event, which may be referred to as an A-Vm interval. By subtracting a pre-excitation interval (PEI) from the A-Vm, the medical device determines an A-V interval between an atrial depolarization and delivery of the pre-excitation signal.
    • 描述了用于在心脏起搏期间确定何时向心脏组织(例如心肌组织)传递预激发信号的技术。 医疗装置检测内在或节奏的心房去极化,然后检测心室中随后的机械事件,例如收缩。 作为示例,机械事件可以通过测量心室移动或心脏内或全身血压的变化来检测。 医疗设备确定心房去极化和心室机械事件之间的间隔,其可被称为A-Vm间隔。 通过从A-Vm中减去预激励间隔(PEI),医疗设备确定心房去极化和预激励信号传递之间的A-V间隔。