Method of washing blood cells and container assembly thereof
US5114396A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1991 |
| Grant date | May 19, 1992 |
| Priority date | — |
| Expiry date | Jun 18, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B5/0428
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Thawed glycerolized red blood cells are washed in a system (1) of closed collapsible containers of flexible material which are positioned concentrically in a centrifuge rotor. The blood cells are held in an annular primary container (2) into which wash liquid is centrifugally fed from a c entral container (3) and from which supernatant is expressed into a central waste container (4) while the primary container is being compressed as a result of centrifugal action on an elastic body (24) in the rotor. A container assembly (1) for use in carrying out the washing comprises an annular collapsible primary container (2), a collapsible circular closed wash liquid container (3), a collapsible circular, closed waste container (4), and valve controlled conduits for passing liquid from the wash liquid container into the primary container and from the primary container into the waste container. The wash liquid container (3) and the waste container (4) are positioned one on top of the other in the circular area surrounded by the primary container (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.