Blood cell counter having dual testing heads
US4157499A · kind A · utility
8Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1977 |
| Grant date | Jun 5, 1979 |
| Priority date | — |
| Expiry date | Sep 15, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hematology analyzer for counting red blood cells and white blood cells wherein separate counting heads and circuits are provided for counting each type of blood cell. Tests may be run separately or simultaneously during the counting operation. The operation of each head is optimized, thereby yielding greater reliability, precision, accuracy, speed, and efficiency. Electronic circuitry generates pulses as each cell passes through a sensing zone. A real time display of these pulses is provided on a cathode ray tube display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.