Ventilation mask with integrated piloted exhalation valve and method of ventilating a patient using the same
US9616194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2012 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Nov 2, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3334
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In accordance with the present invention, there is provided a mask for achieving positive pressure mechanical ventilation (inclusive of CPAP, ventilator support, critical care ventilation, emergency applications), and a method for a operating a ventilation system including such mask. The mask of the present invention includes a piloted exhalation valve that is used to achieve the target pressures/flows to the patient. The pilot for the valve may be pneumatic and driven from the gas supply tubing from the ventilator. The pilot may also be a preset pressure derived in the mask, a separate pneumatic line from the ventilator, or an electro-mechanical control. Additionally, the valve can be implemented with a diaphragm or with a flapper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.