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    • 4. 发明授权
    • Pacemaker with improved pulse detection
    • 起搏器具有改进的脉搏检测
    • US5285780A
    • 1994-02-15
    • US797889
    • 1991-11-26
    • Takashi TsujiMasayuki Horikawa
    • Takashi TsujiMasayuki Horikawa
    • A61N1/37A61N1/362
    • A61N1/3704
    • Disclosed is a pacemaker having an output circuit which is set to a high impedance when the potential of the input signal transmitted through the input-output terminal is within a predetermined range, and is set to a low impedance when the potential of the signal is outside of the range. Therefore, the time when the input to an R wave detection circuit must be stopped due to the after potential becomes extremely short and the failure of detection of an R wave decreases and, further, there are no rapid fluctuations in the potential arising due to the on-off operation of the switch. Further, the pacemaker of the invention may include a pulse lowering circuit for inputting a lowering pulse to the R wave detecting circuit so that the pacing pulse and the following after potential can't be detected as the R wave of the electrical activity of the heart.
    • 公开了一种具有输出电路的起搏器,当通过输入 - 输出端子传输的输入信号的电位在预定范围内时,输出电路被设置为高阻抗,并且当信号的电位在外部时被设置为低阻抗 的范围。 因此,R波检测电路的输入必须由于后置电位而停止的时间变得非常短,并且R波检测的失败降低,并且还不会由于 开关的开 - 关操作。 此外,本发明的起搏器可以包括用于向R波检测电路输入降低脉冲的脉冲降低电路,使得起搏脉冲和随后的电位不能被检测为心脏的电活动的R波 。