Test device and method for determining blood hemoglobin
US4057394A · kind A · utility
175Cited by
14References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 24, 1976 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | May 24, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/721
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test device and method are provided for determining the hemoglobin content of blood. The test device comprises a substantially opaque light reflecting matrix having a refractive index significantly different from the refractive index of blood. In use, a test sample of blood is contacted with the matrix of said test device and the light reflectance therefrom is measured as an indication of the quantitative amount of hemoglobin present in said sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.