Gas systems and methods for enabling respiratory stability
US7886740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2003 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Dec 15, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/914
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Minimal concentrations of CO2 are mixed with pressurized air to provide a gas mix effective for stabilizing breathing of target patients or users. CO2 concentrations below about 2% and preferably between about 0.5% and 1.25% are employed. A gas modulator includes a gas mixing module, a sensor and a control processor. The gas mixing module mixes plural gases, including CO2, into a gas mix, for delivery to a substantially leak-proof patient face mask. The sensor, located substantially at the face mask, measures CO2 concentration in the face mask. The control processor, based on a signal from the sensor, controls the CO2 concentration in the gas mix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.