Apparatus for quantifying components in liquid samples
US4950455A · kind A · utility
94Cited by
4References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1987 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/101666
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
System for quantifying components in a liquid sample, for example white blood cells in blood, based on use of substantially non-compressible beads of uniform diameter as spacers between a microscope slide and cover slip. The distance between the slide and cover slip is determined by the diameter of the beads, and thus the volume of the sample being viewed can be precisely determined. Prior to use, the beads may be adhered to a microscope slide or stirring rod in a dried adhesive matrix which is soluble in the liquid sample to be examined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.