Filtration device useable for removal of leukocytes and other blood components
US6015500A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1998 |
| Grant date | Jan 18, 2000 |
| Priority date | — |
| Expiry date | Jul 20, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/7536
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid filtration device useable for removing leukocytes from blood contains a first chamber which is in fluid flow relationship with a second chamber. Filtration elements separate the first chamber from the second chamber so that liquid flowing from the first chamber is filtered thereby prior to entry into the second chamber. A passage leads from the second chamber into the first chamber and a hydrophobic filter may be used to prevent liquid from the first chamber from flowing through the passage into the second chamber while allowing air to flow therethrough. An outlet is located in the second chamber, preferably at the bottom thereof. A second outlet may be located within the second chamber and may be placed in fluid flow relationship therewith by a conduit or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.