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    • 9. 发明授权
    • Implantable cardiac stimulation device providing reduced defibrillation thresholds and method
    • 植入式心脏刺激装置提供降低的除颤阈值和方法
    • US07856266B1
    • 2010-12-21
    • US11756283
    • 2007-05-31
    • Gene A. BornzinMichael E. BenserEuljoon ParkTaraneh Ghaffari Farazi
    • Gene A. BornzinMichael E. BenserEuljoon ParkTaraneh Ghaffari Farazi
    • A61N1/39
    • A61N1/3962A61N1/3622A61N1/36521A61N1/3943
    • An implantable cardiac defibrillation device provides pre-shock stimuli to reduce the defibrillation threshold (DFT). The device includes an arrhythmia detector that detects fibrillation of a fibrillating chamber of a heart and a pulse generator that provides a fibrillation therapy output responsive to the arrhythmia detector detecting fibrillation of the fibrillating chamber of the heart. The therapy output includes a defibrillating shock having an output magnitude exceeding a temporary defibrillation threshold of the fibrillating chamber and at least one pre-defibrillating shock output pulse that reduces an initial defibrillation threshold of the fibrillating chamber to the temporary defibrillation threshold. An electrode system having at least two defibrillation electrodes delivers both the at least one pre-defibrillating shock output pulse to the heart and the defibrillating shock to the fibrillating chamber of the heart.
    • 植入式心脏除颤装置提供预冲击刺激以减少除颤阈值(DFT)。 该装置包括心律失常检测器,其检测心脏的原纤化室的原纤维和脉冲发生器,其提供响应于心律失常检测器检测心脏原纤化室的纤颤的原纤维化治疗输出。 治疗输出包括具有超过原纤化室的暂时除颤阈值的输出量值的至少一个除纤颤前冲击输出脉冲,其将原纤化室的初始除颤阈值降低到临时除颤阈值。 具有至少两个除颤电极的电极系统将至少一个除颤前的冲击输出脉冲和心脏的去纤维化颤动传递给心脏的原纤维室。