Method and apparatus for the measurement of components of exhaled breath in humans
US6010459A · kind A · utility
152Cited by
21References
23Claims
0Family size
Inventors
Key dates
| Filing date | Apr 9, 1997 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Apr 9, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0836
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and related equipment for measuring components of exhaled breath of a subject are provided which involve causing the subject to exhale into an appropriate apparatus for receiving exhaled breath; increasing the pressure in the mouth of the subject to a level sufficient to close the vellum and isolate the nasopharynx during exhalation; a means of monitoring nasal CO.sub.2 to conrirm vellum closure; and measuring the level of one or more components of the collected exhaled breath. Endogenous nitric oxide is a preferred component of exhaled breath for monitoring and analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.