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    • 29. 发明授权
    • Methods and systems to monitor venous blood oxygen saturation
    • 监测静脉血氧饱和度的方法和系统
    • US07909764B1
    • 2011-03-22
    • US11948381
    • 2007-11-30
    • Brian Jeffrey WenzelFujian QuTaraneh Ghaffari Farazi
    • Brian Jeffrey WenzelFujian QuTaraneh Ghaffari Farazi
    • A61B5/00A61B5/04
    • A61B5/14542A61B5/0452A61N1/36557
    • Methods and system are provided for monitoring a patients venous blood oxygen saturation (SvO2). At least one signal indicative of electrical activity of a patient's heart is obtained. Such a signal can be, e.g., an IEGM or ECG signal. In specific embodiments, such a signal(s) can be obtained from implanted electrodes, and thus, embodiments of the present invention can be implemented by an implantable system. Additionally, there are measurements of at least one metric of cardiac cycles represented in the at least one signal indicative of electrical activity of the patient's heart, where the metric changes with changes in SvO2. Examples of such metric include T-wave metrics and PR intervals. SvO2, and changes therein, are monitored based on the measured metric(s).
    • 方法和系统用于监测患者静脉血氧饱和度(SvO2)。 获得指示患者心脏的电活动的至少一个信号。 这样的信号可以是例如IEGM或ECG信号。 在具体实施例中,可以从植入的电极获得这样的信号,因此本发明的实施例可以由可植入系统实现。 此外,在指示患者心脏的电活动的至少一个信号中表示的心脏周期的至少一个度量的度量,其中度量随SvO2的变化而变化。 这种度量的示例包括T波度量和PR间隔。 SvO2及其中的变化基于测量的度量来监测。