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1. 发明申请

WO1998006328A1 METHOD AND DEVICE FOR STABLE IMPEDANCE PLETHYSMOGRAPHY 审中-公开
标题翻译：用于稳定阻抗平台的方法和装置
公开(公告)号：WO1998006328A1
公开(公告)日：1998-02-19
申请号：PCT/US1997013122
申请日：1997-07-28
申请人： R.S. MEDICAL MONITORING LTD. , FRIEDMAN, Mark, M. , RABINOVITCH, Pavel , SHOCHAT, Michael , ZELDIN, Vladimir , MILMAN, Oscar
发明人： R.S. MEDICAL MONITORING LTD. , FRIEDMAN, Mark, M.
IPC分类号： A61B05/04
CPC分类号： A61B5/0535 , A61B5/0424
摘要： A method and device for impedance plethysmography, with relative immunity to skin electrode contact resistance drift are provided. The method comprises placing first and second measurement electrodes (100, 102) on a biological object; first and second reference electrodes (103, 105) on opposite sides of the first measurement electrode (100); and third and fourth reference electrodes (104, 106) on opposite sides of the second measurement electrode (102), so as to define a measurement electrical circuit (100, 102, 200, 300), six reference electrical circuits (200, 300), and one of (100, 103) or (100, 105) or (103, 105) or (102, 104) or (102, 106) or (104, 106); measuring a first electrical impedance of the measurement circuit; a second, third and fourth electrical impedances of three reference circuits which include the first measurement electrode, the first reference electrode, and the second reference electrode; a fifth, sixth and seventh electrical impedances of three reference circuits which include the second measurement electrode, the third reference electrode and the fourth reference electrode; calculating the skin electrode resistance drift of the first measurement electrode based on the second, third and fourth electrical impedances; the skin electrode resistance drift of the second measurement electrode based on the fifth, sixth and seventh electrical impedances; and calculating the internal impedance of the biological object by subtracting the skin electrode resistance drifts of the first and second measurement electrodes from the first electrical impedance.
摘要翻译：提供了一种用于阻抗体积描记法的方法和装置，具有对皮肤电极接触电阻漂移的相对抗性。该方法包括将第一和第二测量电极（100,102）放置在生物体上; 在第一测量电极（100）的相对侧的第一和第二参考电极（103,105）; 以及在第二测量电极（102）的相对侧上的第三和第四参考电极（104,106），以便限定测量电路（100,102,200,300），六个参考电路（200,300）（100,103）或（100,105）或（103,105）或（102,104）或（102,106）或（104,106）之一; 测量所述测量电路的第一电阻抗; 包括第一测量电极，第一参考电极和第二参考电极的三个参考电路的第二，第三和第四电阻抗; 包括第二测量电极，第三参考电极和第四参考电极的三个参考电路的第五，第六和第七电阻; 基于第二，第三和第四电阻计算第一测量电极的表皮电极电阻漂移; 基于第五，第六和第七电阻的第二测量电极的表皮电极电阻漂移; 以及通过从所述第一电阻抗减去所述第一和第二测量电极的表皮电极电阻漂移来计算所述生物体的内部阻抗。

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