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    • 3. 发明申请
    • OPTOACOUSTIC MONITORING OF MULTIPLE PARAMETERS
    • 多参数光学监测
    • WO2009008933A3
    • 2009-04-16
    • PCT/US2008004732
    • 2008-04-11
    • UNIV TEXASPROUGH DONALD SESENALIEV RINAT ODEYO DONALDPETROV YURIY YPETROV IRINA Y
    • PROUGH DONALD SESENALIEV RINAT ODEYO DONALDPETROV YURIY YPETROV IRINA Y
    • A61B5/00
    • A61B5/14542A61B5/0095A61B5/412A61B5/7239
    • An optoacoustic technique for absolute, accurate, continuous, and real-time measurement of a variety of important diagnostic variables is disclosed, where the variables include: (1) noninvasive measurements of circulating blood volume (BV) and cardiac output (CO); (2) calculation from the measured variables of cardiac index (CI) and systemic oxygen delivery (DO2); (3) concentrations of hemoglobin derivatives (e.g., carboxyhemoglobin [HbCO], reduced hemoglobin [Hb], oxygenated hemoglobin [HbOxy], and methemoglobin [HbMet]), total hemoglobin concentration [THb], concentrations of lactate, myoglobin, cholesterol, body pigments, and exogenous dyes; (4) content in tissues of water, fat, protein, calcium, and blood; as well as density of hard and soft tissues; and (5) accurate noninvasive measurement of blood pressure (or vascular pressure) in arteries, arterioles, veins, capillaries, using occlusion-induced changes in optoacoustic signal induced in blood circulating in the vessels. The optoacoustic technique can be used for single measurement, continuous measurement, or continuous monitoring of these variables.
    • 公开了用于绝对,准确,连续和实时测量各种重要诊断变量的光声技术,其中变量包括:(1)循环血液体积(BV)和心输出量(CO)的无创测量; (2)从心脏指数(CI)和全身氧气输送(DO2)的测量变量计算; (3)血红蛋白衍生物(例如,碳氧血红蛋白[HbCO],血红蛋白降低[Hb],氧合血红蛋白[HbOxy]和高铁血红蛋白[HbMet])的浓度,总血红蛋白浓度[THb],乳酸盐,肌红蛋白,胆固醇,体内浓度 颜料和外源染料; (4)水,脂肪,蛋白质,钙和血液组织中的含量; 以及硬组织和软组织的密度; 和(5)使用血管中循环血液中诱导的光声信号的闭塞诱发的变化,准确地无创地测量动脉,小动脉,静脉,毛细血管中的血压(或血管压力)。 光声技术可用于单次测量,连续测量或连续监测这些变量。