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    • 8. 发明授权
    • Intra-serum and intra-gel for modeling human skin tissue
    • 血清内和凝胶内用于建模人体皮肤组织
    • US06777240B2
    • 2004-08-17
    • US10241344
    • 2002-09-11
    • Kevin H. HazenJames Matthew WelchStephen F. MalinTimothy L. RuchtiAlexander D. LorenzTamara L. TroySuresh ThennadilThomas B. Blank
    • Kevin H. HazenJames Matthew WelchStephen F. MalinTimothy L. RuchtiAlexander D. LorenzTamara L. TroySuresh ThennadilThomas B. Blank
    • G01N3100
    • G01N21/274A61B5/0075A61B5/1075A61B5/14532A61B5/1455A61B5/1495A61B5/7264A61B2560/0223A61B2560/0233G01N21/359G01N21/4785G01N21/49Y10T436/10
    • The invention provides a class of samples that model the human body. This family of samples is based upon emulsions of oil in water with lecithin acting as the emulsifier. These solutions that have varying particle sizes may be spiked with basis set components (albumin, urea and glucose) to simulate skin tissues further. The family of samples is such that other organic compounds such as collagen, elastin, globulin and bilirubin may be added, as can salts such as Na+, K+and Cl−. Layers of varying thickness with known index of refraction and particle size distributions may be generated using simple crosslinking reagents, such as collagen (gelatin). The resulting samples are flexible in each analyte's concentration and match the skin layers of the body in terms of the samples reduced scattering and absorption coefficients, &mgr;'s and &mgr;a. This family of samples is provided for use in the medical field where lasers and spectroscopy based analyzers are used in treatment of the body. In particular, knowledge may be gained on net analyte signal, photon depth of penetration, photon radial diffusion, photon interaction between tissue layers, photon density (all as a function of frequency) and on instrument parameter specifications such as resolution and required dynamic range (A/D bits required). In particular, applications to delineate such parameters have been developed for the application of noninvasive glucose determination in the near-IR region from 700 to 2500 nm with an emphasis on the region 1000 to 2500 nm (10,000 to 4,000 cm−1).
    • 本发明提供了一类对人体进行建模的样品。 该样品系基于水中的油与卵磷脂作为乳化剂的乳液。 具有不同粒径的这些溶液可以加入基础组分(白蛋白,尿素和葡萄糖)以进一步模拟皮肤组织。 样品家族可以加入其它有机化合物如胶原蛋白,弹性蛋白,球蛋白和胆红素,也可以加入诸如Na +,K +和Cl - 的盐。 可以使用简单的交联试剂如胶原(明胶)产生具有已知折射率和粒度分布的不同厚度的层。 所得样品在每种分析物的浓度上是柔性的,并且根据样品减少的散射和吸收系数mu和μa来匹配身体的皮肤层。 该样品系列用于医疗领域,其中使用激光和基于光谱的分析仪来治疗身体。 特别地,可以获得关于净分析物信号,光子穿透深度,光子径向扩散,组织层之间的光子相互作用,光子密度(全部作为频率的函数)以及仪器参数规格(例如分辨率和所需动态范围) 需要A / D位)。 特别地,已经开发出描绘这些参数的应用,用于在700至2500nm的近红外区域中应用非侵入性葡萄糖测定,重点在1000至2500nm(10,000至4000cm -1)的区域。