Breathing mask device and method and mold for producing same
AssigneeResMed R&D Germany GmbH
InventorsJohann Sebastian Burz, Achim Biener, Bernd Christoph Lang
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Abstract
A breathing mask device, a sealing lip device for a breathing mask device, a molding tool and a method for producing a corresponding breathing mask device and sealing lip device are described. An aspect of the invention is to provide ways that make it possible to create a breathing mask device that, with sufficiently strong tightness is distinguished by particular wearing comfort and which moreover can be produced advantageously in times of industrial production standpoints.
Claims31
A respiratory device to provide continuous positive airway pressure therapy for treatment of sleep-related respiratory disturbances by delivery of breathable gas to a user at a pressure level above ambient pressure, the respiratory device comprising:
- a body structure having a strut;
- a sealing lip structure joined to the body structure, the sealing lip structure being structured to seal against a portion of the user's face for delivery of the breathable gas to the patient's airways;
- an interior defined by the body structure, the sealing lip structure, and the portion of the user's face;
- a receiving wall formed integrally with the sealing lip structure;
- and
- a gel structure comprising a receiving chamber containing gel material, the receiving chamber being defined by the receiving wall and the body structure,
- wherein the strut extends into the receiving chamber.
A method of making a respiratory device to provide continuous positive airway pressure therapy for treatment of sleep-related respiratory disturbances by delivery of breathable gas to a user at a pressure level above ambient pressure, the method comprising:
- molding a shell and a strut extending therefrom in a first mold chamber of a mold tool;
- treating portions of the shell to form adhesion zones on the shell;
- molding a sealing lip structure onto the shell and the strut in a second mold chamber of the mold tool such that the sealing lip structure forms an adhesion bond with the shell at the adhesion zones;
- and
- forming a gel structure by injecting a gel material between the shell and the sealing lip structure such that a receiving wall of the sealing lip structure separates from the shell and the strut between the adhesion zones to form a receiving chamber.
Dependencies are inferred from the claim text.