MICROFLUIDIC CHECK VALVE AND RELATED DEVICES AND SYSTEMS

A microfluidic check valve (164, 264, 400) includes an inlet bore (442), an internal chamber (438), an outlet bore (446), and a disk (454) freely movable in the chamber (438) between an open position and a closed position. At the open position, the disk (454) permits fluid to flow from the inlet bor...

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Bibliographische Detailangaben
Hauptverfasser:	GEOVANOS, Ares, YIN, Hongfeng
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MEASURING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS TAPS TESTING THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A microfluidic check valve (164, 264, 400) includes an inlet bore (442), an internal chamber (438), an outlet bore (446), and a disk (454) freely movable in the chamber (438) between an open position and a closed position. At the open position, the disk (454) permits fluid to flow from the inlet bore (442), through the chamber (438), and to the outlet bore (446). At the closed position, the disk (454) prevents fluid from flowing in the reverse direction from the chamber (438) into the inlet bore (442). The check valve (164, 264, 400) may be positioned in-line with a fluid conduit or capillary tube, and/or incorporated with various fluidic devices such as, for example, capillary tubes, fittings, and chromatography columns. The check valve (164, 264, 400) is capable of withstanding high fluid pressures, while featuring a small swept volume, such as a nano-scale volume. The check valve (164, 264, 400) may be utilized, for example, to prevent fluid back flow and isolate pressure pulses in fluid flow systems.