Method and apparatus for performing platelet measurement
US7390662B2 · kind B2 · utility
19Cited by
14References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Jun 28, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/107497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a hematology instrument system that discriminates platelets from red blood cells, debris and other particles within a blood sample. The instrument system uses an optical trigger and collects data at optical sensor locations relative to a flow cell-illuminating laser beam's optical axis. An axial sensor measures axial light loss due to a particle in the flow cell's illumination aperture. In addition, the instrument system can include an RF unit generates electrical parameters, such as DC and RF parameters, within the flow cell. Blood specimens can be prepared with and without a sphering agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.