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    • 52. 发明申请
    • OPTICAL SENSOR FOR DETERMINING THE CONCENTRATION OF AN ANALYTE
    • 用于确定分析仪浓度的光学传感器
    • US20110105867A1
    • 2011-05-05
    • US12741350
    • 2008-10-31
    • Peter SchultzArkady AmosovNatalia IzvarinaSergey Kravetz
    • Peter SchultzArkady AmosovNatalia IzvarinaSergey Kravetz
    • A61B5/1455
    • G01N21/49A61B5/0059A61B5/14532A61B5/1455A61B5/7239G01N21/1717G01N2021/1725
    • A method and apparatus for non-invasively determining a concentration of glucose in a subject using optical excitation and detection is provided. The method includes emitting an exciter beam (B1) to irradiate a portion (130) of tissue of the subject, causing physical and chemical changes in the surface, and causing an initial CPU back scattering (D1) of light. The method further includes periodically emitting a probe beam (B2) which irradiates the portion of tissue and causes periodic back scatterings (D2) of light. The initial and periodic back scatterings are detected and converted into electrical signals of at least the amplitude, frequency or decay time of the physical and chemical changes, the back scatterings being modulated by the physical and chemical changes. By differentiating over time at least one of the amplitude, frequency or decay time of the physical and chemical changes, the concentration of glucose may be determined.
    • 提供了使用光学激发和检测非侵入性地确定受试者中葡萄糖浓度的方法和装置。 该方法包括发射激发光束(B1)以照射被检体的组织的一部分(130),引起表面的物理和化学变化,并引起光的初始CPU反向散射(D1)。 该方法还包括周期性地发射照射组织部分并产生光的周期性后向散射(D2)的探针束(B2)。 初始和周期性后向散射被检测并转换成至少物理和化学变化的振幅,频率或衰减时间的电信号,后向散射由物理和化学变化调制。 通过随时间推移物理和化学变化的幅度,频率或衰减时间中的至少一个,可以确定葡萄糖的浓度。