Blood separation device
US5935051A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Aug 29, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/0633
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A separator and a method for quickly separating an aliquot of plasma or serum from cells in a sample of blood is provided herein. The separator includes a housing which defines a separation container, an outlet aperture, a valve which selectively seals the outlet aperture, and a spinner. Initially, the spinner rotates the housing at a separation speed which causes the heavier cells to separate from the serum or plasma. Subsequently, the spinner rotates the housing at a faster, expellant speed which causes the valve to open and the cells to be expelled through the outlet aperture. After the cells have been expelled from the separation container, rotation of the housing is stopped and the serum or plasma is collected from the separation container. Since the separator provided herein does not use a separation gel, the separator is easy to clean and reusable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.