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    • 8. 发明授权
    • Microfluidic passive mixing chip
    • 微流控无源混频芯片
    • US09194780B2
    • 2015-11-24
    • US13374157
    • 2011-12-14
    • Eugene Y. ChanMoon Z Chan
    • Eugene Y. ChanMoon Z Chan
    • G01N1/38B01F5/00B01F5/06B01F13/00B01F13/10
    • G01N1/38B01F5/0071B01F5/0647B01F13/0059B01F13/0093B01F13/1027Y10T436/25
    • An improved device and method for passive mixing of fluids is described, and the use of the device in clinical diagnostic procedures. The mixer provides thorough mixing of a sample of blood or other fluid with an assay material, such as a diluent or a component of an assay system, in a closed system with a low and limited pressure drop. Sample size is small, typically 5 to 300 microliters. Mixing is accomplished by a combination of rotational vortex mixing due to a fluid stream coming tangent to a drain, and either or both of a second vortex mixer of opposite handedness, and a Dean mixer. Combinations of these techniques reliably provide complete mixing at low pressure drop. In a preferred usage, the microfluidic system can run a diluent continuously and inject samples at intervals, to facilitate automatic data processing of optical or other signatures of the well-mixed stream.
    • 描述了用于流体被动混合的改进的装置和方法,以及该装置在临床诊断程序中的使用。 混合器在具有低和有限压降的封闭系统中提供血液或其它流体样品与测定材料(例如测定系统的稀释剂或组分)的充分混合。 样品尺寸小,通常为5至300微升。 混合通过由于与排水管相切的流体流的旋转涡流混合以及具有相反方向性的第二涡旋混合器中的任一者或两者与Dean混合器组合而实现。 这些技术的组合可靠地在低压降下提供完全混合。 在优选的用途中,微流体系统可连续运行稀释剂并间隔地注入样品,以便于对混合良好的流的光学或其它特征进行自动数据处理。
    • 9. 发明申请
    • Capillary Manipulation of Clinical Samples
    • 临床样品的毛细管理
    • US20140165711A1
    • 2014-06-19
    • US13694575
    • 2012-12-13
    • Julia Z. SharpeEugene Y. Chan
    • Julia Z. SharpeEugene Y. Chan
    • G01N1/10
    • B01L3/502715A61B10/0051A61B10/007B01L3/502723B01L2200/027B01L2200/0684B01L2300/0838G01N1/02G01N2001/002
    • A system for collection and delivery of sub-milliliter liquid samples is described that provides a dramatic simplification for the measurement of clinical values. The system produces high dilutions of capillary size samples, such as bodily fluids or blood, by a factor of 1000 or more. Multiple assays can be conducted on a sample of 0.1 cc or less. A small lancet can create a drop of blood on a fingertip or other location, which can be collected into a self-priming capillary blood collector. The sample is then loaded into a consumable loader. Then a fluid, such as saline, is flowed into the consumable loader, and passes through the capillary collector, washing out the fluid. Downstream, the blood in the capillary is reliably diluted by mixing with appropriate reagents to allow analysis of selected blood properties. One or more individual bubbles can be inserted into the stream during loading. The capillary loading system can be used for one or several assays on a single blood sample. It can be very compact and lightweight and is suitable for use in remote environments, such as outer space, in which it is difficult to access diagnostic assays.
    • 描述了用于收集和递送亚毫升液体样品的系统,其为测量临床值提供了显着的简化。 该系统产生毛细管尺寸样品(例如体液或血液)的高稀释倍数为1000或更高。 可以对0.1cc或更少的样品进行多次测定。 小刺血针可以在指尖或其他位置产生一滴血液,可以将其收集到自吸毛细管血液收集器中。 然后将样品装入消耗装载机。 然后,诸如盐水的流体流入消耗装载器,并且通过毛细收集器,洗涤流体。 在下游,通过与适当的试剂混合可靠地稀释毛细血管中的血液,以便分析选定的血液性质。 一个或多个单独的气泡可以在装载过程中插入流中。 毛细管装载系统可用于单次血液样品上的一次或多次测定。 它可以非常紧凑和轻便,适用于远程环境,如外部空间,难以进行诊断测定。