US 6,981,522 B2
Microfluidic devices with distributing inputs
Stephen D. O'Connor, Pasadena, Calif. (US); Christoph D. Karp, Pasadena, Calif. (US); and Eugene Dantsker, Sierra Madre, Calif. (US)
Assigned to Nanostream, Inc., Pasadena, Calif. (US)
Filed on May 30, 2002, as Appl. No. 10/160,393.
Claims priority of provisional application 60/296897, filed on Jun. 07, 2001.
Claims priority of provisional application 60/357683, filed on Feb. 13, 2002.
Prior Publication US 2002/0185183 A1, Dec. 12, 2002
Int. Cl. F15C 1/06 (2006.01); F16K 37/00 (2006.01)
U.S. Cl. 137—803 36 Claims
OG exemplary drawing
 
1. A multi-layer microfluidic device comprising a plurality of device layers, the plurality of device layers defining:
at least three functional features;
a first, a second, and a third distributing input each associated with each of the at least three functional features; and
a channel crossover region that includes:
a first distribution channel of the first distributing input, the first distribution channel defined in a first device layer of the plurality of device layers;
a second distribution channel of the second distributing input, the second distribution channel defined in a second device layer of the plurality of device layers; and
a third device layer of the plurality of device layers disposed between the first device layer and the second device layer, wherein the third device layer prevents fluid communication between the first distribution channel and the second distribution channel at the channel crossover region.