Microfluidic probe with bypass and control channels
US10507465B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Dec 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/1034
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microfluidic probe includes a probe head with a processing surface that includes a first aperture and a second aperture. The probe further includes a liquid injection channel, which leads to the first aperture, and a liquid aspiration channel, which extends from the second aperture. The probe also includes a bypass channel, arranged so as to fluidly connect the liquid injection channel to the liquid aspiration channel, as well as a control channel. The latter fluidly connects to the bypass channel, hence forming a junction therewith, so as to define two portions of the bypass channel. These portions includes: a first portion that extends from the junction to the liquid injection channel; and a second portion that extends from that same junction to the liquid aspiration channel. The invention is further directed to methods of operation of a probe as described above, to process a surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.