Methods for separation of particles
US7588692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2007 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Apr 21, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B2005/0471
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to a method and system that separates first particles from second particles, or white blood cells from red blood cells, by sedimentation in a fluid chamber with debulking of one of the first or second particles or red blood cells through the inlet of the fluid chamber. The method and system further includes fractionation of the remaining particles or white blood cells into selected subsets. In one embodiment of the instant invention a blood product containing white blood cells is loaded in a separation chamber, a diluting or sedimenting agent is added to encourage rouleaux formation of any red blood cells, the cells are sedimented and the red blood cells are removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.