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    • 4. 发明公开
    • METHODS AND SYSTEMS FOR POINT-OF-CARE COAGULATION ASSAYS BY OPTICAL DETECTION
    • VERFAHREN UND SYSTEMEFÜRBLUTGERINNUNGSTESTS VERSORGUNGSORT DURCH OPTISCHE DETEKTION
    • EP3137878A1
    • 2017-03-08
    • EP15720890.1
    • 2015-04-27
    • Instrumentation Laboratory Company
    • KERIMO, JosefZENG, HansongSCHARLACK, RonBLANKENSTEIN, Gert
    • G01N21/53G01N33/49G01N21/59
    • G01N21/534G01N21/59G01N21/6408G01N21/6486G01N21/65G01N33/4905G01N2201/062G01N2201/0636
    • This invention relates to an optical system and method for performing turbidity assay, e.g. coagulation of blood or plasma, comprising a standard optical reference (78), a sample handling structure (88), a light source (96) and an optical detection unit (94). The standard optical reference (78), such as a fluorophore-doped glass, provides constant optical signal under controlled optical conditions. The sample handling structure (88), such as a microfluidic system with reaction chamber, can be placed beneath or above the standard optical reference (78). During operation, the coagulating plasma/blood changes its optical absorbance and reflection properties, which results in changes in optical signal that reaches the optical reading unit (94). The variation of the optical signal, such as fluorescence signal indicates the kinetics of the turbidity varying process, such as plasma/blood coagulation process. This invention is used for performing turbidity assay with optical system, including photometry system, fluorescence system, Raman Spectroscopy system and so on.
    • 本发明涉及一种用于进行浊度测定的光学系统和方法。 血液或血浆凝固,包括标准光学参考,样品处理结构,光源和光学检测单元。 标准光学参考,例如荧光团掺杂的玻璃,在受控的光学条件下提供恒定的光学信号。 样品处理结构,如具有反应室的微流体系统,可放置在标准光学参考下方或上方。 在操作过程中,凝固血浆/血液会改变其光吸收和反射特性,导致到达光学读取单元的光信号的变化。 光信号的变化,如荧光信号,表示浊度变化过程的动力学,如血浆/血液凝固过程。 本发明用于光学系统进行浊度测定,包括光度测定系统,荧光系统,拉曼光谱系统等。