Method of photometric in vitro determination of the content of an analyte in a sample of whole blood
US5366903A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1994 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Feb 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/1288
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sampling device for photometric determination of the content of an analyte in a sample of whole blood has at least one measuring chamber having two wall parts, at least one wall part being locally transparent, at least one wall part being sufficiently deformable to facilitate displacement of the whole blood sample from the measuring chamber. The measuring chamber also contains a transparent body having a radiation transmission characteristic dependent upon the concentration of a predetermined analyte in the whole blood sample. The sample device is employed in an analyzer for photometric determination of the content of an analyte in a sample of whole blood and in a method of photometric in vitro determination of the content of an analyte in a sample of whole blood. In the method, a sample of whole blood is transferred directly from an in vivo locality to the sampling device, the measuring chamber therein is deformed in a controlled manner to substantially drain the whole blood from the measuring chamber, radiation is transmitted through the substantially drained measuring chamber, detected, and the analyte content determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.