Microchannel with an opening and/or closing and/or pumping device
US9512935B2 · kind B2 · utility
1Cited by
4References
11Claims
0Family size
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Key dates
| Filing date | Feb 22, 2013 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Feb 22, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2196
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A microchannel formed at the interface of two layers of material, at least one of the two materials being a substrate. A volume of the microchannel contains a film of polymer fixed by covalent bonding to the substrate layer. The film of polymer being formed from a hydrogel material susceptible to undergoing changes in volume under the action of an external stimulus. The hydrogel polymer is chosen from those which are sensitive to changes in temperature, light, electrical field or pH. A method for producing the microchannel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.