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    • 1. 发明授权
    • Multi-site impedance sensor using coronary sinus/vein electrodes
    • 多站阻抗传感器使用冠状窦/静脉电极
    • US06278894B1
    • 2001-08-21
    • US09336449
    • 1999-06-21
    • Rodney W. SaloV. A. KadhiresanKevin G. Nugent
    • Rodney W. SaloV. A. KadhiresanKevin G. Nugent
    • A61B505
    • A61N1/36521A61N1/3627A61N1/3682A61N1/3684
    • A method and apparatus for performing impedance plethysmography on a living heart for diagnostic and therapy purposes involves placement of plural leads where at least one is disposed within a coronary vein traversing the myocardium on the left side of the heart with another lead having plural electrodes thereon disposed in the right ventricle. By appropriate selection of electrodes on the first and second leads for driving with an AC carrier signal and other such electrodes coupled to a sensing amplifier, an impedance vs. time signal can be derived that when signal processed provides useful information concerning cardiac performance. The multi-site impedance sensing has been found to yield more robust data especially in patients having CHF.
    • 用于诊断和治疗目的的用于在活的心脏上进行阻抗体积描记术的方法和装置包括放置多个引线,其中至少一个引线设置在穿过心脏左侧的心肌的冠状静脉内,另一引线上设置有多个电极 在右心室。 通过适当选择第一和第二引线上的电极用AC载波信号进行驱动并且其它这样的电极耦合到感测放大器,可以导出阻抗对时间信号,当信号被处理时提供关于心脏性能的有用信息。 已经发现多位点阻抗感测可以产生更强健的数据,特别是在具有CHF的患者中。