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    • 61. 发明授权
    • Rate responsive cardiac pacemaker
    • 速率响应心脏起搏器
    • US5423870A
    • 1995-06-13
    • US155482
    • 1993-11-22
    • Arthur L. OliveRodney W. Salo
    • Arthur L. OliveRodney W. Salo
    • A61N1/365A61N1/36
    • A61N1/36585
    • A cardiac pacemaker having an automatic pulse rate response gain factor responsive to at least one cardiac-related physiological characteristic of a patient. The pacemaker includes a rate controller that comprises a detector for detecting a plurality of individual measurements of at least one physiological characteristic over each of a plurality of pre-determined time periods, with each of the individual measurements being an average of values detected over each of a respective multiple number of incremental time periods occurring within each of the pre-determined time periods. The pacemaker saves the highest measurement from one incremental time period of each of several consecutive pre-determined time periods, and these highest measurements are averaged. Thereafter, the rate controller adjusts the rate response gain factor or slope of the pulse rate in relation to the physiological characteristic measurement and a pre-determined target pulse rate. In a preferred embodiment, two physiological characteristics are measured, with high values averaged of only one characteristic when that characteristic exceeds a threshold level of the other characteristic. One embodiment is pulse rate responsive to minute volume measurement in combination with accelerometer measurement, with accelerometer measurement requiring a threshold value over an increment of time prior to minute volume recordation for input toward rate response gain factor.
    • 一种心脏起搏器,其具有响应于患者的至少一个心脏相关生理特征的自动脉搏响应增益因子。 起搏器包括速率控制器,其包括用于在多个预定时间段中的每一个上检测至少一个生理特性的多个单独测量值的检测器,其中每个单独测量值是在 在每个预定时间周期内出现的相应的多个增量时间段。 起搏器从几个连续预定时间段的每个增量时间段节省最高测量值,并对这些最高测量值进行平均。 此后,速率控制器相对于生理特征测量和预定的目标脉率调节脉率的速率响应增益因子或斜率。 在优选实施例中,测量两个生理特征,当该特征超过另一个特征的阈值水平时,仅测量一个特征的高值。 一个实施例是响应于微小体积测量的脉冲速率与加速度计测量结合,加速度计测量需要在微小体积记录之前的时间上增加阈值,以便向速率响应增益因子输入。
    • 69. 发明授权
    • Method and device for myocardial stress redistribution
    • 心肌应激再分配的方法和装置
    • US07778707B2
    • 2010-08-17
    • US11689032
    • 2007-03-21
    • Allan C. ShurosRodney W. SaloShantha Arcot-Krishnamurthy
    • Allan C. ShurosRodney W. SaloShantha Arcot-Krishnamurthy
    • A61N1/368
    • A61N1/3627
    • Methods and devices are described for delivering electrical stimulation to the heart in a manner that advantageously redistributes myocardial stress during systole for therapeutic purposes in the treatment of, for example, post-MI and HF patients. Pre-excitation pacing may be applied to deliberately de-stress a particular myocardial region that may be expected to undergo deleterious remodeling, such as the area around a myocardial infarct or a hypertrophying region or to deliberately stress a region remote from the pre-excitation pacing site in order to exert a cardioprotective conditioning effect, similar to the beneficial effects of exercise. Pre-excitation pacing may be advantageously combined with inotropic electrical stimulation applied to the stressed region.
    • 描述了将方法和装置以有效地将收缩期内的心肌应力重新分配到治疗目的的治疗目的的心脏和心脏病和心脏病患者的方式,以向心脏递送电刺激。 预激发起搏可以用于故意地减压可能预期会发生有害重建的特定心肌区域,例如心肌梗塞或肥大区域周围的区域,或者故意强迫远离预激励起搏的区域 为了发挥心脏保护性调理作用,类似于运动的有益效果。 预激发起搏可以有利地与施加到应激区域的变力电刺激组合。