Passive gas regulating valve for a respiratory system
US9981093B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2014 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Oct 6, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/88054
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a gas regulating valve (1) for a respiratory system comprising:—a main path between an inlet (2) and an outlet (3), and—an evacuation path between the outlet (3) and an evacuation orifice (4), characterised in that:—the main path is provided with at least a non-return valve for preventing gas to circulate from the outlet (3) to the inlet (2), and—the evacuation path is provided with an obstructing membrane (10) arranged and designed for being deformed by gas from the inlet (2) to partially or fully obstruct the evacuation path. The invention also relates to a mask integrating such gas regulating valve, and to a respiratory system also comprising such gas regulating valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.