Method and apparatus for the measurement of blood sugar
US5889585A · kind A · utility
31Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Sep 24, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/8483
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an apparatus and method for detecting the concentration of a substance in a fluid, such as the concentration of sugar in blood, the measuring field of a test strip to which the fluid to be tested in applied is divided into two separate measuring areas. The change in the light reflection or light transmission capacity of the two measuring areas is then detected separately at repetitive time intervals, and in comparing the changes in light reflectivity or light transmission of the two measuring areas over time, perceived differences in the changes occurring in the two areas are evaluated to provide useful information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.