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    • 6. 发明授权
    • Method and apparatus for treating cardiac arrhythmia using auxiliary
pulse
    • 使用辅助脉冲治疗心律失常的方法和装置
    • US5978705A
    • 1999-11-02
    • US39143
    • 1998-03-13
    • Bruce H. KenKnightRaymond E. IdekerRobert S. Booker, IIIStephen J. Hahn
    • Bruce H. KenKnightRaymond E. IdekerRobert S. Booker, IIIStephen J. Hahn
    • A61N1/39A61N1/05
    • A61N1/3937A61N1/3918A61N1/3943
    • An implantable system for the defibrillation or cardioversion of the heart of a patient in need of such treatment comprises a plurality of primary electrodes, a power supply, and a control circuit. Preferably, at least one auxiliary electrode is also included. The plurality of primary electrodes are configured for delivering a defibrillation pulse along a predetermined current pathway in a first portion of the heart, the current pathway defining a weak field area in a second portion of the heart. The at least one auxiliary electrode is configured for delivering an auxiliary pulse to the a portion of the heart where the primary shock field intensity is at or near a minimum. The control circuit is operatively associated with the primary electrodes, the auxiliary electrode, and the power supply, with the control circuit configured for delivering a cardioversion sequence comprising an auxiliary pulse sufficient to induce a cessation of propagation in the weak field area through the auxiliary electrode, followed by a defibrillation pulse through the primary electrodes delivered during the cessation of propagation in the weak field area.
    • 用于需要这种治疗的患者的心脏的除颤或心脏复律的可植入系统包括多个初级电极,电源和控制电路。 优选地,还包括至少一个辅助电极。 多个主电极被配置用于沿心脏的第一部分中的预定电流通路输送除颤脉冲,该电流通路在心脏的第二部分中限定弱磁场区域。 所述至少一个辅助电极被配置为将辅助脉冲传送到心脏的一部分,其中主要的冲击电场强度处于或接近最小值。 所述控制电路与所述主电极,所述辅助电极和所述电源可操作地相关联,所述控制电路被配置用于传送包括辅助脉冲的复律序列,所述辅助脉冲足以引起通过所述辅助电极在所述弱磁场区域中的传播停止 ,然后通过在弱磁场区域中传播停止期间传递的主电极的除颤脉冲。