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    • 9. 发明申请
    • Metering Technique for Lateral Flow Assay Devices
    • 侧流测试装置的计量技术
    • US20100323392A1
    • 2010-12-23
    • US12872225
    • 2010-08-31
    • Kaiyuan YangNing WeiShawn Ray Feaster
    • Kaiyuan YangNing WeiShawn Ray Feaster
    • C12Q1/04
    • G01N33/558G01N33/54366
    • A diagnostic test kit for detecting an analyte residing in a test sample is provided. The kit employs a lateral flow device that contains a membrane. A metering channel is formed in the membrane that is capable of delivering a controlled volume of the test sample to a detection zone upon initiation of the assay. Such a metering channel is particularly effective for embodiments in which the test sample has a relatively low volume, such as less than about 100 microliters, in some embodiments from about 0.5 to about 25 microliters, and in some embodiments, from about 1 to about 10 microliters. For example, whole blood drops obtained from patients with a lancet typically have a volume of less than about 3 microliters. Despite their low volume, the present inventors have discovered that the blood drops may still be accurately analyzed for the presence of an analyte using lateral flow detection techniques.
    • 提供了用于检测驻留在测试样品中的分析物的诊断测试试剂盒。 该套件采用包含膜的侧向流动装置。 在膜中形成计量通道,其能够在测定开始时将受控体积的测试样品输送到检测区。 这样的计量通道对于其中测试样品具有相对较小体积(例如小于约100微升),在一些实施方案中为约0.5至约25微升,且在一些实施方案中为约1至约10 微升。 例如,从具有柳叶刀的患者获得的全血滴通常具有小于约3微升的体积。 尽管本发明人的体积小,但是本发明人已经发现,使用侧流检测技术仍然可以精确地分析血液滴定分析物的存在。