Centrifugal fluid analyzer rotor
US8486333B2 · kind B2 · utility
2Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2009 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | May 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention provides rotors and methods of precisely metering a sample fluid and mixing the sample with a reagent. The rotors have a metering tube of defined volume that fills until sample flow is stopped by surface tension of a meniscus at a capillarity port, while excess sample is stripped from the metering tube inlet by centripetal force of the spinning rotor. By spinning the rotor at a higher speed, a reagent can be forced from a reagent chamber to contact the meniscus, breaking the surface tension and allowing the metered sample to mix with the reagent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.