Variable inclination centrifugation assembly for rapid separation of blood
US5584790A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1995 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Sep 8, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B5/0421
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A variable inclination centrifugation or rotor assembly and a method for rapid separations. The samples, such as whole blood, are centrifuged within pivoting tube holders while in a first position wherein the longitudinal axes of the tube holders are substantially parallel to a central axis of rotation. As rotation continues, the tube holders are inclined in a radial direction by controlled adjustment of the tube holders toward a second position wherein the axes of the tube holders and the rotation axis are substantially perpendicular. The first embodiment of the assembly employs a worm gear to incline the samples and allows for inclination and rotation of the samples to be controlled independently. The second and third embodiments employ a spring-loaded linkage system and a governor mass and three-arm linkage system, respectively, for inclination. These are activated by the rotational speed of the samples. The assemblies of the present invention may be utilized within standard centrifuges, and may be removed from the centrifuge, as for sterilization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.