Vacuum-assisted drying of filters in microfluidic systems
US12269034B2 · kind B2 · utility
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Key dates
| Filing date | Nov 28, 2019 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Dec 30, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/0633
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Improved methods and devices using reduction of pressure for removing ethanol from filters in a fluidic or microfluidic system in point of care devices involve filters that are solid state extraction filters used to capture and/or concentrate nucleic acids prior to further downstream processing such as amplification by polymerase chain reaction. The method uses the induction of negative pressure with respect to atmospheric pressure to improve the efficiency of the ethanol removal process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.