Multilayer hydrodynamic sheath flow structure

Details Multilayer hydrodynamic sheath flow structure Multilayer hydrodynamic sheath flow structure

2007-11-30

2009-11-03

Hess, Douglas A (Department: 3651)

Conveyors: fluid current

Miscellaneous

C406S086000, C406S094000, C406S195000

Reexamination Certificate

active

07611309

ABSTRACT:
A microfabricated sheath flow structure for producing a sheath flow includes a primary sheath flow channel for conveying a sheath fluid, a sample inlet for injecting a sample into the sheath fluid in the primary sheath flow channel, a primary focusing region for focusing the sample within the sheath fluid and a secondary focusing region for providing additional focusing of the sample within the sheath fluid. The secondary focusing region may be formed by a flow channel intersecting the primary sheath flow channel to inject additional sheath fluid into the primary sheath flow channel from a selected direction. A sheath flow system may comprise a plurality of sheath flow structures operating in parallel on a microfluidic chip.

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