Airway adapter with backflush tube
US5042522A · kind A · utility
19Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1990 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Jan 25, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8122
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A backflushing system for an inlet filter in an airway adapter in a gas flow sampling and analyzing system includes a back flush fluid supply conduit and sampling conduit connected to the airway adapter by a single coupling element. Flow of back flush fluid causes material blocking the filter to be washed away into the respiratory conduit for disposal. Flow of backflush fluid is restricted to one way flow through the backflush conduit by a disk shaped valve member mounted in the air way adapter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.