Nasal cannula
US6439234B1 · kind B1 · utility
342Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1998 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Nov 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/912
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for insufflating a treating gas into a patient and for measuring a carbon dioxide content exhaled by the patient includes a hollow body with a partitioning wall separating the body into inhalation and exhalation manifolds. Two hollow prongs have coaxial openings close to the body which allow gas exchange for breathing and carbon dioxide measuring purposes. The holes are of a size such that suction drawn through the holes is limited while still allowing accurate gas analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.