Ventilator mask with a filler and method of production
View Patent ↗A ventilator mask having an upper part of an elastic material and a mask body, wherein the upper part of the mask is joined with the mask body of the ventilator mask by a mask connection region. A wall of the upper part of the mask bounds at least in certain regions of the wall a cavity which is filled with a filler at least in certain regions of the cavity and the cavity is formed at least in certain regions of the cavity along the periphery of the upper part of the mask.
1. A method for producing an upper part of a ventilator mask, comprising first producing a shaped filler body and then covering the filler body with a second, protective material, inhomogeneously filling the cavity to be filled by injecting the filling material so that some regions of the filler in the upper part of the mask are softer and more elastic than other regions of the mask, and piercing the covering in thicker areas of the upper part of the mask, after filling, the method further including tightly sealing the one or more filling holes by welding.
2. The method in accordance with claim 1 , coupling covering the filler body with the second, protective material by an immersion method.
3. The method in accordance with claim 1 , wherein the filler body is produced from an elastic material, such as a gel or a foamed material.
4. The method in accordance with claim 1 , wherein the filler body is produced as a hollow body and filled with a gas mixture.
5. A method for producing an upper part of a ventilator mask, comprising producing a shaped rim by spraying filler from a nozzle onto a wall of the upper part of the mask, whereby the applied amount of filler is varied to achieve the desired shaping of the rim, the filler only being introduced on an inner surface or an outer surface of walls of the upper part of the mask, whereby existing dies for the upper parts of masks can continue to be used, the upper part of the mask having an inwardly formed, thin, peripheral contact lip that forms a soft and flexible contact zone, the contact lip producing an air seal in a region of the bridge of the nose.
6. The method in accordance with claim 5 , wherein a gel or a foamed material is used as the applied filler.
7. The method in accordance with claim 5 , wherein the rim sprayed onto the wall is provided with a protective layer.