Body fluid analyte measurement
    4.
    发明申请
    Body fluid analyte measurement 有权
    体液分析物测量

    公开(公告)号:US20050002018A1

    公开(公告)日:2005-01-06

    申请号:US10896227

    申请日:2004-07-20

    IPC分类号: G01N21/31 G01J1/00 A61B5/00

    摘要: An analyte (e.g., glucose) is tested in a sample (e.g., blood or blood-free interstitial fluid) having both the analyte and other constituents (e.g., protein). The analyte has an absorption peak over a narrow bandwidth at a characteristic wavelength. The other constituents have an absorption over a broad bandwidth. The broad bandwidth includes and is broader than the narrow bandwidth. Radiant energy (e.g., IR radiation) is directed at the sample. The energy has a source bandwidth including the broad bandwidth. The sample absorbs a portion of the energy. A remainder of the energy is available for analysis. The remainder is analyzed by filtering the remainder into an analyte portion and a reference portion. The analyte portion contains substantially only the narrow bandwidth. The reference portion contains substantially only the broad bandwidth. The analyte portion and the reference portion are measured and compared to calculate an amount of the analyte in the sample.

    摘要翻译: 在具有分析物和其他成分(例如蛋白质)的样品(例如,血液或无血液的间质液)中测试分析物(例如葡萄糖)。 分析物在特征波长处的窄带宽上具有吸收峰。 其他成分在宽带宽上具有吸收。 宽带宽包括窄带宽。 辐射能量(例如,IR辐射)指向样品。 能量具有包括宽带宽的源带宽。 样品吸收一部分能量。 剩余的能量可用于分析。 通过将剩余部分过滤成分析物部分和参考部分来分析剩余部分。 分析物部分基本上仅包含窄带宽。 参考部分基本上仅包含宽带宽。 测量分析物部分和参考部分并比较样品中分析物的量。