Capillary flow device
July 23, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3720097 3799742 Use of laser speckle patterns for measurement of electrophoretic mobilities Apparatus for sampling, mixing the sample with a reagent and making particularly optical analyses Apparatus for measuring the aggregation rate of particles Method of measuring the fluidity of liquids for medical and pharmaceutical purposes, and apparatus for performing the method Liquid transport device and method Photometric method for determining courses of reactions Apparatus for determining the flow shear stress of suspensions in particular blood Capillary flow device InventorsAssigneeApplicationNo. 734597 filed on 07/23/1991US Classes:250/341.3, Including polarizing means73/64.43, By optical measurement422/947, Using capillary action, including fluid transfer through absorbent matrix [B01L 3/00C6C]436/69CLOTTING OR CLOTTING FACTOR LEVEL TESTSExaminersPrimary: Howell, Daniel W.Assistant: Hanig, Richard Attorney, Agent or FirmForeign Patent References
International ClassesG01N 021/49G01N 031/22 AbstractNovel methods and devices are provided involving at least one chamber, at least one capillary, and at least one reagent involved in a system providing for a detectable signal. As appropriate, the devices provide for measuring a sample, mixing the sample with reagents, defining a flow path, and reading the result. Of particular interest is the use of combinations of specific binding pair members which result in agglutination information, where the resulting agglutination particles may provide for changes in flow rate, light patterns of a flowing medium, or light absorption or scattering. A fabrication technique particularly suited for forming internal chambers in plastics devices is also described along with various control devices for use with the basic device.Other References
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