Methods and apparatus for in situ concentration and/or dilution of materials in microfluidic systems
June 9, 2017. 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 ReferencesSilicon semiconductor wafer for analyzing micronic biological samples Capillary flow device Method and device for moving molecules by the application of a plurality of electrical fields Capillary flow device Device for processing biological specimens for analysis of nucleic acids Fluid handling in mesoscale analytical devices Analysis based on flow restriction Fully integrated miniaturized planar liquid sample handling and analysis device Partitioned microelectronic and fluidic device array for clinical diagnostics and chemical synthesis Partitioned microelectronic device array InventorsAssigneeApplicationNo. 871338 filed on 06/09/1997US Classes:422/100, Pipette or other volumetric fluid transfer means73/863, SAMPLER, SAMPLE HANDLING, ETC.204/600, Electrophoretic or electro-osmotic apparatus422/58, In holder or container having special form422/68.1, Means for analyzing liquid or solid sample436/52, With a continuously flowing sample or carrier stream436/179, Dilution436/180Volumetric liquid transferExaminersPrimary: Warden, Robert J.Assistant: Moazzam, Fariborz Attorney, Agent or FirmForeign Patent References
International ClassesB01L 003/00B01L 011/00 AbstractThe present invention is generally directed to methods, apparatus and systems for use in performing in situ dilution or concentration of a particular subject material in a microfluidic device or system. These methods and apparatus may generally be integrated with other microfluidic operations and/or systems, to perfom a number of different manipulations, wherein dilution or concentration, carried out within the context of the microfluidic device or system, is just one part.Other References
Field of SearchAutomated system with sample fluid pressure transport meansPipette or other volumetric fluid transfer means Including means for separating a constituent; e.g., filter, condenser, extractor, etc. Sample mechanical transport means in or for automated analytical system Means for analyzing liquid or solid sample And means segmenting fluid material Measuring electrical property In holder or container having special form With a continuously flowing sample or carrier stream INCLUDING SAMPLE PREPARATION Dilution Volumetric liquid transfer SAMPLER, SAMPLE HANDLING, ETC. With injector With detailed detection system (e.g., including a light source and a camera, etc.) |
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