Nasal cannula
US6655385B1 · kind B1 · utility
236Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Sep 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/912
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A nasal cannula for insufflating a patient with oxygen through one nare of the cannula and separately analyzing the exhaled gases from the patient by drawing the sampling of the exhaled gas from the other nare of the cannula into a conventional carbon dioxide analyzer. A further addition of holes or vents in the nares of the cannula are provided on both the interior and posterior of one or both nares in order to substantially reduce or eliminate the incidence of occlusion of the tip of the carbon dioxide sampling nare.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.