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    • 9. 发明申请
    • METHOD FOR THE DETERMINATION OF A LIGHT TRANSPORT PARAMETER IN A BIOLOGICAL MATRIX
    • 用于确定生物基质中的光传输参数的方法
    • WO02069790A2
    • 2002-09-12
    • PCT/EP0201944
    • 2002-02-23
    • ROCHE DIAGNOSTICS GMBHHOFFMANN LA ROCHEKRAEMER UWEHEIN HEINZ-MICHAELVOLZ DIETMAR
    • KRAEMER UWEHEIN HEINZ-MICHAELVOLZ DIETMAR
    • A61B5/00
    • A61B5/1455A61B5/14532A61B2562/0242Y10T436/144444
    • Method for the selective determination of a light transport parameter, characteristic of the light scattering in a biological matrix (5), in particular for the purpose of non-invasive determination of the concentration of glucose in the biological matrix. The above includes a number of detection measurements in which light is injected into the biological sample as primary light and an intensity value for escaping secondary light measured in a detection location, which is found at various separations from the location of light injection for the number of detection measurements. The light transport parameter which is characteristic for the light scattering in the biological matrix is derived from the intensity values in an analytical step by means of an analytical algorithm. According to the invention, the scattering coefficient can be selectively determined, whereby the analytical algorithm comprises a step in which a value for change with time DELTA tI(r) describing the change with time of the intensity value is derived from at least two different intensity values from different times.
    • 用于选择性测定生物基质(5)中光散射特征的光传输参数的方法,特别是用于无创测定生物基质中葡萄糖浓度的目的。 它包括多个检测测量值的,在各照射光作为一次光到生物基体和在其位于所述多个在从照射部位不同的测量距离检测测量的被检测部位的强度测量值的,易失性次级光被测量。 在评估步骤中,通过评估算法从强度测量值导出生物基质中光散射的光传输参数特征。 为散射系数的选择性测定建议评估算法包括其中所获得的组成测量的强度值的至少两个不同的时间的步骤中,强度测量值描述时间导数值DELTA的Ti(R)随时间的变化被计算。