High flow humidifier for delivering heated and humidified breathing gases
US7302949B2 · kind B2 · utility
48Cited by
22References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Jun 19, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/162
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved humidifier which may be used with a nasal cannula for high-flow respiratory gas therapy wherein a sterilized liquid is drawn from a sterilized liquid container by a high-flow driving gas passing adjacent to an aspirator tube orifice through which the sterilized liquid is drawn into contact with the driving gas for fracturing the liquid into a mist which is warmed and delivered to the patient or user, and the driving gas is also passed adjacent a condensate return orifice which draws any condensate formed in the humidified respiratory gas delivery system away from the cannula and back into the system for re-use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.