Method for manufacturing hollow structure for breathing mask
AssigneeResMed R&D Germany GmbH
InventorsBernd Christoph Lang, Achim Biener, Johann Sebastian Burz, Johannes Nickol, Adel Nibu
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Abstract
A method for producing a filled hollow structure includes producing an open hollow structure of a first material, positioning the open hollow structure on a tool adapted to hold the open hollow structure, filling the open hollow structure with a filler medium, and closing the filled open hollow structure with a second material. A hollow structure may be produced by such method, and a tool may be structured to perform such method.
Claims33
A method for producing a filled hollow structure of a breathing mask, comprising:
- producing an injection-molded open hollow structure of a first material;
- positioning the open hollow structure on a tool adapted to hold the open hollow structure;
- filling the open hollow structure with a filler medium while the hollow structure is positioned on the tool;
- closing the filled open hollow structure with a second material while the hollow structure is positioned on the tool;
- and
- curing the second material when the second material is in a different state than the first material,
- wherein the second material is an elastomer, and
- wherein an end portion of the hollow structure forms a contact zone configured to rest against a patient's face.
A method for producing a filled hollow structure of a breathing mask, comprising:
- producing an open hollow structure of a first material;
- positioning the open hollow structure on a tool adapted to hold the open hollow structure;
- filling the open hollow structure with a filler medium through at least one opening;
- and
- closing the opening, wherein the hollow structure includes a bi-stable membrane that is movable between a first position in which the opening is open and a second position in which the opening is closed.
Dependencies are inferred from the claim text.