Centrifugation method separating serum or plasma from whole blood using a specimen container having a cap to retain blood cells
US11697114B2 · kind B2 · utility
6Cited by
137References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2020 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Oct 28, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2300/0832
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device and method for separating serum or plasma from blood cells in a whole blood specimen. The present invention uses a cap with a reservoir, such that blood cells are packed into the cap when the specimen container is centrifuged. When the cap is removed, the blood cells are also removed, and the serum or plasma is left in the specimen tube where it can be readily extracted by a pipette which is able to reach all the way to the bottom of the specimen tube minimizing the dead volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.