Blood separation system particularly for concentrating hematopoietic stem cells
US6733433B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B2005/0485
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for separating biological fluids into components, comprises a set of containers for the biological fluid to be separated and the separated components, optionally an additional container for additive solution, and a hollow centrifugal processing chamber having an axial inlet/outlet for the biological fluid. The processing chamber contains a piston movable to intake a selected quantity of biological fluid and express processed biological fluid components via the outlet. Optical means monitor the position of piston to control the amount of intaken fluid and the expression of components. A distribution valve arrangement selectively communicates the processing chamber and the containers or places them out of communication. The system is arranged to operate in a seperation mode and in a non-separation transfer mode, especially for adding preservative solution to separated blood stem cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.