Breath collection devices
US5361772A · kind A · utility
14Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1993 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Jul 7, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A breath sampling device has a body defining an interior space or bore with two open ends. The patient's breath is directed through the device from end to end, thereby continually purging the interior space. At a designated time during the breath, closure devices are actuated to shut both ends, desirably in response to a single actuation movement, thereby capturing a breath sample at a predetermined time. The continual purging action assures that the captured breath sample truly represents the breath at the designated time during the exhalation cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.