Method and device for testing blood units for viral contamination
US5686238A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1993 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Dec 9, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2221/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for creating a leukocyte rich sample from a mixed population of blood cells. The method comprises the steps of: separating an amount of blood into layers that include a buffy coat layer having a mixed population of blood cells including plasma and red blood cells; providing a chamber having an opening for receiving a fluid; causing the buffy coat layer to enter the chamber; centrifuging the chamber to separate the buffy coat layer into at least a plasma containing layer, a leukocyte containing layer, and a red blood cell containing layer; and separating the leukocyte containing layer from the other layers in the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.