Flow control in multi-stream microfluidic devices
US6499499B2 · kind B2 · utility
239Cited by
8References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Sep 25, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2224
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Microfluidic devices for splitting an established fluidic flow through a microfluidic channel among multiple downstream microfluidic channels include a plurality of elevated flow resistance regions to promote precise and predictable splitting. Each elevated resistance region imparts a flow resistance that is substantially greater than the characteristic resistance to established flow of its associated downstream channel. Elevated flow resistance regions may include one or more porous materials and/or alterations to the channel geometry of at least a portion of a downstream channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.