Microfluidic systems and methods
US12415183B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2021 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Apr 23, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/6439
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Diagnostic testing systems and related methods employ actuation pressure-based control during fluid transfer within a test cartridge. A method of operating a cartridge to process a biological sample includes coupling an actuation port of the cartridge with a pump assembly of a portable analyzer. A transfer operation of the pump assembly induces airflow through the actuation port so as to displace an aliquot of the sample solution along a fluid channel. A control unit monitors a pressure signal indicative of a pressure of air displaced by the pump assembly. The transfer operation is stopped in response to a change in the pressure signal indicative of contact of the aliquot of the sample solution with a hydrophobic staging vent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.