Swivel device utilizing bearing clearance to allow carbon dioxide laden exhaust
US5937851A · kind A · utility
317Cited by
16References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1997 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Feb 27, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A swivel exhaust conduit for rotatably connecting a patient mask to the delivery conduit of a positive pressure air supply. The swivel exhaust conduit design provides an exhaust port that utilizes the rotating bearing of the swivel conduit's rotating two-piece design for permitting and directing exhaust of CO.sub.2 laden air. A baffle chamber formed in the clearance of the two pieces provides an area where noise is reduced. As CO.sub.2 laden exhaust exits the swivel exhaust conduit, it is directed away from the patient mask and down the outside of the delivery conduit via a slit pattern on the swivel conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.