Method and apparatus for analyzing a breath sample
US6148657A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 13, 1997 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Aug 13, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/8886
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and apparatus for analyzing a breath sample provide user-friendly operation and analysis. The method and apparatus provide for automatic operation and coordination of operation of and absorbent sample tube, including desorbing means, a chromatographic precolumn, a chromatographic main column, a detector, a data processor, a sample receiving tube for receiving exhaled breath sample, a sample loop for aspirating a prescribed quantity of breath sample from the sample receiving tube, a sample valve, a standard gas reservoir, and a standard gas valve. All of the foregoing are operated automatically in such that start cycles, detector cycles, fault detection cycles, standardizing, analysis, shutdown and end cycles are performed in a way which allows for straightforward and simple measurement of breath sample by a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.