Nasal ventilation interface
US6994089B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2004 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Sep 15, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/101
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A nasal ventilation interface comprising a hollow body having at least one and preferably two nasal apertures, and at least one and preferably two inhale apertures, and at least one and preferably two nasal insert tubes each associated with one of the nasal apertures and having an annular sleeve that forms a seal with a nostril of the patient. The hollow body has at least one and preferably two exhale apertures and at least one valve assembly associated with the exhale apertures that are capable of preventing air from passing through the exhale aperture upon the patient inhaling and allowing air to pass through the exhale aperture upon exhaling. The hollow body may also have at least one and preferably two filters for retaining heat and moisture from the exhale air and transferring the retained heat and moisture into the inhale air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.