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    • 8. 发明授权
    • Cardiac resynchronization method and apparatus employing mechanical measurement of cardiac walls
    • 心脏再同步化方法和采用机械测量心脏壁的装置
    • US07904155B2
    • 2011-03-08
    • US11549676
    • 2006-10-16
    • Yinghong YuJiang DingQingsheng Zhu
    • Yinghong YuJiang DingQingsheng Zhu
    • A61N1/365
    • A61N1/36578A61N1/3627A61N1/36542A61N1/3684
    • Methods and devices are disclosed for employing mechanical measurements to synchronize contractions of ventricular wall locations. Accelerometers that may be placed within electrode leads are positioned at ventricular wall locations, such as the left ventricle free wall, right ventricle free wall, and the anterior wall/septum wall. The accelerometers produce signals in response to the motion of the ventricular wall locations. A processor may then compare the signals to determine a difference in the synchronization of the ventricular wall location contractions. The difference in synchronization can be determined in various ways such as computing a phase difference and/or amplitude difference between the accelerometer signals. One or more stimulation pulses may be provided per cardiac cycle to resynchronize the contractions as measured by the accelerometers to thereby constantly and automatically optimize the cardiac resynchronization therapy.
    • 公开了用于采用机械测量来同步心室壁位置收缩的方法和装置。 可以放置在电极引线内的加速度计定位在心室壁位置,例如左心室游离壁,右心室游离壁和前壁/隔膜壁。 加速度计响应于心室壁位置的运动产生信号。 然后,处理器可以比较信号以确定心室壁位置收缩的同步的差异。 可以以各种方式确定同步差异,例如计算加速度计信号之间的相位差和/或振幅差。 可以在每个心动周期提供一个或多个刺激脉冲,以重新同步由加速度计测量的收缩,从而不断地和自动地优化心脏再同步治疗。