Airway adapter
US4852583A · kind A · utility
27Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Jan 16, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/085
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tubular airway adapter having a hollow interior and a cylindrical wall for providing a sample gas air flow. The adapter includes an annular channel in the cylindrical wall and a plurality of radial channels extending from the annular channel to the interior. The annular channel is in fluid communication with ambient atmosphere through a port in the cylindrical wall. The wall of the adapter increases in thickness from on either side of the annular channel towards the annular channel to provide a double conically shaped interior and a wall region which protrudes into the interior at the location of the annular channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.