Nasal cannula
US7047974B2 · kind B2 · utility
64Cited by
80References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2003 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Oct 20, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0683
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A nasal cannula for delivering air to a patient's nares. Two delivery tubes are provided to supply air to a pair of nasal inserts each of which conform to the shape of the nare. Properly placed bleed ports reduce noise and reduce carbon dioxide retained in the system. The cannula is positioned on the face with the aid of a strap system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.