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US 12,465,710 B2Granted
Thermoformed mask
AssigneeFisher & Paykel Healthcare Limited
InventorsJeroen Hammer, Adam Alexander Tebbutt, Andrew Chun Mon Fan
Life of this patent
Estimating the term…
Abstract
Respiratory masks made of thermoformed EVA foam are provided. A mask can include a seal that contacts a user's face in use and a housing permanently joined to the seal. Both the seal and housing can be made of EVA foam. The seal and housing can be made of EVA foam having different densities. The mask can further include a frame removably or permanently coupled the housing. Headgear can be coupled to the frame and can couple the mask to the user's face in use.
Claims19
A respiratory mask assembly comprising:
- a cushion module comprising:
- a seal portion comprising thermoformed foam;
- and
- a housing comprising thermoformed foam, the seal portion and the housing permanently joined to define a breathing chamber;
- a frame comprising thermoformed foam, the frame configured to connect to the housing;
- and
- a headgear assembly configured to connect to the frame, the headgear assembly comprising:
- two side straps, each of the two side straps configured to pass across one of a user's cheeks and above one of a user's ears in use;
- and
- a top strap extending between the two side straps and configured to extend across a top of a user's head in use, wherein an air conduit extends within the top strap and the two side straps and the air conduit is configured to provide a supply of gases to the breathing chamber of the cushion module;
- wherein the top strap and/or each of the two side straps comprise EVA foam, wherein the EVA foam in the top strap and/or each of the two side straps is backed with a fabric-wrapped rigid plastic.
8 more elements
A respiratory mask assembly comprising:
- a cushion module comprising:
- a seal portion comprising thermoformed foam;
- and
- a housing comprising thermoformed foam, the seal portion and the housing permanently joined to define a breathing chamber;
- a frame comprising thermoformed foam, the frame configured to connect to the housing;
- and
- a headgear assembly configured to connect to the frame, the headgear assembly comprising:
- two side straps each having a D-shaped cross-section, each of the two side straps configured to pass across one of a user's cheeks and above one of a user's ears in use;
- and
- a top strap extending between the two side straps and configured to extend across a top of a user's head in use, wherein an air conduit extends within the top strap and the two side straps and the air conduit is configured to provide a supply of gases to the breathing chamber of the cushion module;
- wherein a straight portion of the D-shaped cross-section comprises a polyurethane backed fabric.
8 more elements
Dependencies are inferred from the claim text.