Microfluidic branch metering systems and methods
US6481453B1 · kind B1 · utility
55Cited by
13References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2002 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Jun 27, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/85938
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Microfluidic devices and methods for metering discrete plugs of fluid are provided. The microfluidic devices include a trunk channel and a branch channel having an impedance region. A fluid is supplied to the trunk channel and fills the branch channel to the impedance region. The fluid is then flushed from the trunk channel leaving the branch channel filled. Because the branch channel has a volume, a discrete plug of the fluid having a volume substantially equal to that of the branch channel is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.