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    • 4. 发明公开
    • DETERMINING A COUPLING INTERVAL FOR A CARDIAC VULNERABLE ZONE
    • 确定心脏脆性区的耦合间隔
    • EP1713538A1
    • 2006-10-25
    • EP04812793.0
    • 2004-12-01
    • MEDTRONIC, INC.
    • HAVEL, William, J.
    • A61N1/38
    • A61N1/3962A61N1/3937
    • A method and apparatus for actively determining a coupling interval corresponding to a cardiac vulnerable zone associated with a therapy of an implantable medical device that includes a timing and control unit delivering, via electrodes of a plurality of electrodes, a first pulse train and a first pulse signal at a predetermined time interval from delivery of a last pulse of the first pulse train. A sensor determines an evoked response corresponding to the first pulse signal, and a microprocessor compares the evoked response to a prior determined evoked response and sets the coupling interval equal to the predetermined time interval in response to the latency of the evoked response having increased by a first predetermined amount, and reduces the predetermined time interval by a second predetermined amount in response to the latency of the evoked response not having increased by the first predetermined amount.
    • 一种用于主动确定对应于与可植入医疗设备的治疗相关联的心脏脆弱区的耦合间隔的方法和设备,所述方法和设备包括定时和控制单元,其经由多个电极的电极递送第一脉冲串和第一脉冲 信号从传递第一脉冲串的最后一个脉冲起的预定时间间隔。 传感器确定对应于第一脉冲信号的诱发响应,并且微处理器将诱发响应与先前确定的诱发响应进行比较,并且响应于诱发响应的等待时间增加a,将耦合间隔设置为等于预定时间间隔 第一预定量,并且响应于诱发响应的延迟未增加第一预定量,将预定时间间隔减小第二预定量。