Microfluidic devices
US11850590B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2022 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Jul 6, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/088
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A microfluidic device configured to sample, meter and collect a metered volume of body fluid for analysis by means of capillary transport, wherein the device comprises: an inlet section for receiving a sample of body fluid, the inlet section comprising an inlet port and a channel system; a filtration membrane configured to separate plasma from blood, wherein the inlet section and the channel system are configured to transport the sample of body fluid to, and to distribute it across the filtration membrane with a stepwise or gradually increasing capillarity from the inlet section to the filtration membrane; a metering function, configured to meter a predefined volume of the received body fluid; and at least one porous medium for receiving the transported sample of body fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.