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Microfluidic device and method for focusing, segmenting, and dispensing of a fluid stream

United States Patent

September 9, 2008
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A microfluidic device and method for forming and dispensing minute volume segments of a material are described. In accordance with the present invention, a microfluidic device and method are provided for spatially confining the material in a focusing element. The device is also adapted for segmenting the confined material into minute volume segments, and dispensing a volume segment to a waste or collection channel. The device further includes means for driving the respective streams of sample and focusing fluids through respective channels into a chamber, such that the focusing fluid streams spatially confine the sample material. The device may also include additional means for driving a minute volume segment of the spatially confined sample material into a collection channel in fluid communication with the waste reservoir.
Jacobson; Stephen C. (Knoxville, TN), Ramsey; J. Michael (Knoxville, TN)
UT-Battelle, LLC (Oak Ridge, TN)
10/ 758,718
January 16, 2004
GOVERNMENT RIGHTS STATEMENT The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy.