System, apparatus and methods for supplying gases
US9750908B2 · kind B2 · utility
3Cited by
9References
8Claims
0Family size
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Key dates
| Filing date | Feb 15, 2013 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Feb 28, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system, apparatus and methods are provided for supplying gases to a user. The supply includes a sub-therapeutic mode and a pressure support mode for delivering therapy to a user. A flow diversion device or valve switches from a first mode corresponding with the sub-therapeutic mode of the system to a second mode corresponding with the pressure support mode of the system. In the first mode, the valve opens a larger flow path between the interior of the user interface and ambient air than in the second mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.