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    • 2. 发明申请
    • METHOD AND DEVICE FOR DETERMINING A PROPERTY OF LIVING TISSUE
    • 用于确定生活组织属性的方法和装置
    • US20100298680A1
    • 2010-11-25
    • US12809099
    • 2008-01-11
    • Mark Stuart TalaryFrancois DewarratDaniel HuberLisa Falco
    • Mark Stuart TalaryFrancois DewarratDaniel HuberLisa Falco
    • A61B5/1477A61B5/053
    • A61B5/0531A61B5/14532
    • The invention relates to a measurement of tissue properties, in particular glucose, by measuring the response of the tissue to an applied electric field. The tissue is modeled by a System of homogeneous layers. In one approach, a plurality of electrical fields are generated in the tissue at different frequencies. For each of the fields, a signal depending on the dielectric permittivity as seen by the electrode arrangement at the frequency is measured, thereby generating a measured dataset. In another approach the different electrode configurations can be used to achieve different penetration depths in the desired layers. A function is then fitted to the dataset by varying at least some parameters of the function. These parameters describe the dispersion of the dielectric permittivity of a plurality of layers in the tissue. At least part of the parameters obtained in this fitting procedure are then used for determining the desired tissue property. Furthermore a combination of these two approaches can be used to optimize the uniqueness of the Solution of the fitting procedure for changes at a specific depth.
    • 本发明涉及通过测量组织对所施加的电场的响应来测量组织特性,特别是葡萄糖。 组织由均匀层系统建模。 在一种方法中,在组织中以不同的频率产生多个电场。 对于每个场,测量取决于由频率处的电极布置看到的介电常数的信号,从而生成测量的数据集。 在另一种方法中,可以使用不同的电极配置来实现所需层中的不同穿透深度。 然后通过改变功能的至少一些参数将功能拟合到数据集。 这些参数描述了组织中多个层的介电常数的分散。 然后使用在该拟合程序中获得的参数的至少一部分来确定期望的组织性质。 此外,可以使用这两种方法的组合来优化用于特定深度上的变化的拟合过程的解的唯一性。