Patent 6890093 Issued on May 10, 2005. Estimated Expiration Date: January 11, 2022. 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.
366/336, STATIONARY DEFLECTOR (DIVIDING AND RECOMBINING TYPE) IN FLOW-THROUGH MIXING CHAMBER366/341, STATIONARY MIXING CHAMBER422/188, Including plural reaction stages422/100, Pipette or other volumetric fluid transfer means137/833Structure of body of device
Robust microfluidic mixing devices mix multiple fluid streams passively, without the use of moving parts. In one embodiment, these devices contain microfluidic channels that are formed in various layers of a three-dimensional structure. Mixing may be accomplished with various manipulations of fluid flow paths and/or contacts between fluid streams. In various embodiments, structures such as channel overlaps, slits, converging/diverging regions, turns, and/or apertures may be designed into a mixing device. Mixing devices may be rapidly constructed and prototyped using a stencil construction method in which channels are cut through the entire thickness of a material layer, although other construction methods including surface micromachining techniques may be used.
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