On chip dilution system
US6883957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25625
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An on-chip chemical compound dilution system for providing dilution of a chemical compound in a microfluidic application includes at least one sample well for providing a selected chemical compound to be diluted, a dilution well for providing a diluent for diluting the chemical compound, a network of channels for carrying the chemical compound and diluent, a first syringe pump for effecting dilution, a second syringe pump, a detector and a plurality of valves for selectively controlling the flow of liquid through the channels. The dilution system may be a multiple-stage dilution system for precisely mixing a plurality of chemical compounds in a diluent. The dilution system allows for accurate calibration to compensate for variations due to manufacturing, thereby providing precise dilution ratios. The dilution system further enables flushing to allow re-use of the system with another chemical compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.