Thermal activated microfluidic switching
US10960396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2015 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | May 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microfluidic chip assembly having a plurality of microfluidic flow channels is provided. Each channel has a switching region. The microfluidic chip may further include at least one bubble jet actuator configured to generate a pressure pulse in the switching regions of the channels to selectively deflect particles in the flow. The bubble jet actuator may be configured as a blind chamber, as an operative non-through flow chamber and/or as a self-replenishment chamber. The bubble jet actuator may include a trapped air bubble. The bubble jet actuator may include a plurality of heating elements individually controlled for pre-nucleation warmup and/or for triggering vapor bubble nucleation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.