Process for operating a blood centrifugation unit
US6352499B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Apr 23, 1999 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Apr 23, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B2005/0464
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is disclosed for operating a centrifuging unit with a centrifuging container, in particular a centrifuging bowl, for separating the components of a liquid, in particular blood, containing components with different specific weights. The centrifuging container has a separation chamber, a liquid inlet into the separation chamber. The inlet and the outlet extend through a revolving passage at the upper end of the container. The inlet is in communication with an inlet duct which opens in a defined area of the container into the separation chamber. A pumping device is provided for filling and/or emptying the centrifuging container. The liquid to be centrifuged is supplied through the inlet. After a desired amount is separated, the flow direction between the inlet and the outlet is reversed while the centrifuging container continues to rotate at its full working speed, so that at least one of the separated components is discharged from the separation chamber through the inlet duct and the inlet. The flow direction is then reversed again, so that liquid to be separated is again supplied through the inlet. While the separated component is discharged, a compensating liquid is suppl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.