Respiratory mask
AssigneeResMed Pty Ltd
InventorsJohann Sebastian Burz, Achim Biener, Bernd Christoph Lang, Philip Rodney Kwok, Karthikeyan Selvarajan, Robert Edward Henry
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Abstract
A respiratory mask, a mould for a respiratory mask, as well as to a method for producing a respiratory mask are disclosed, in which manufacturability and usability of respiratory masks are improved. A respiratory mask is disclosed for administering a breathable gas to a patient, the respiratory mask comprising a first component formed from a flexible material and a second component formed from a material that is more rigid than the flexible material, wherein the first component is formed onto the second component by an overmoulding process.
Claims35
A respiratory mask configured to administer a breathable gas at a pressure that is, at least sometimes, above ambient pressure to provide Positive Airway Pressure (PAP) therapy for treating Sleep Disordered Breathing (SDB), the respiratory mask comprising:
- a frame including a socket that forms an inlet configured to receive breathable gas during use;
- a gas washout vent;
- a sealing cushion formed from silicone and attached to the frame;
- a headgear assembly including a strap and configured to support the frame and the sealing cushion;
- an elbow removably connected to the frame at the socket and configured to provide fluid communication between a conduit and the frame, the elbow being molded from a relatively rigid material, and the elbow being rotatable relative to frame;
- and
- a seal constructed from an elastomer that is more flexible than the relatively rigid material of the elbow, the seal being configured to seal against the socket when the elbow is removably connected to the frame,
- wherein the relatively rigid material of the elbow includes at least one treated portion and at least one non-treated portion,
- wherein the elastomer is overmoulded to or with the at least one treated portion of the relatively rigid material of the elbow and secured to the relatively rigid material of the elbow via an induced adhesive bond formed between said at least one treated portion and a surface of the elastomer abutting the at least one treated portion, and
- wherein the frame is constructed from a material that is more rigid than the silicone of the sealing cushion.
Dependencies are inferred from the claim text.