RESPIRATORY MASKS WITH GUSSETED CUSHIONS

• US 20160206843A1
• Filed: 03/08/2016
• Published: 07/21/2016
• Est. Priority Date: 01/12/2005
• Status: Active Grant

• Current Assignee: ResMed Pty Ltd. (ResMed Incorporated)
• Original Assignee: Resmed Limited (ResMed Incorporated)
• Inventors: HITCHCOCK, Robin Garth, DAVIDSON, Aaron Samuel
• Granted Patent: US 10,449,315 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/0611 with a gusset portion
• CPC Class Codes: A61M 16/0616 with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure
• CPC Class Codes: A61M 16/0622 having an underlying cushion
• CPC Class Codes: A61M 16/0633 with forehead support
• CPC Class Codes: A61M 16/0683 Holding devices therefor
• CPC Class Codes: A61M 16/0816 Joints or connectors
• CPC Class Codes: A61M 16/0858 Pressure sampling ports

Abstract

A respiratory mask assembly for treatment of sleep disordered breathing includes a frame, a cushion which at least in part defines a cavity adapted to receive at least a patient'"'"'s nose, and an air delivery connection supported by the frame and adapted to connect an air delivery conduit to supply air to the cavity. The cushion includes a face contacting portion, a non-face contacting portion, and a gusset portion between the face contacting portion and the non-face contacting portion, wherein the gusset portion includes a hanging portion that, when seen in cross-section, hangs over an adjacent exterior surface of the cushion, wherein the gusset portion includes a first point adjacent to the face contacting portion and a second point adjacent to the non-face contacting portion, and wherein the first point is offset radially outwardly from the second point.

Claims

1-23. -23. (canceled)

24. A respiratory mask assembly for treatment of sleep disordered breathing, the respiratory mask comprising:

a frame;

a cushion which at least in part defines a cavity adapted to receive at least a patient'"'"'s nose,

wherein the cushion includes;

a face contacting portion,

a non-face contacting portion, and

a gusset portion between the face contacting portion and the non-face contacting portion,

wherein the gusset portion includes a hanging portion that, when seen in cross-section, hangs over an adjacent exterior surface of the cushion,

wherein the gusset portion includes a first point adjacent to the face contacting portion and a second point adjacent to the non-face contacting portion, and wherein the first point is offset radially outwardly from the second point; and

an air delivery connection supported by the frame and adapted to connect an air delivery conduit to supply air to the cavity.

25. The respiratory mask assembly according to claim 24, wherein the gusset portion includes a thickness in cross-section that is substantially uniform along its entire length.

26. The respiratory mask assembly according to claim 24, wherein the face contacting portion includes a side wall and a membrane extending from the side wall.

27. The respiratory mask assembly according to claim 24, further comprising a reinforcing member provided to a side wall of the face contacting portion.

28. The respiratory mask assembly according to claim 27, wherein the reinforcing member is provided at a nasal bridge region of the cushion.

29. The respiratory mask assembly according to claim 28, wherein the reinforcing member extends from one side, over an apex, and then to the other side of the nasal bridge region.

30. The respiratory mask assembly according to claim 29, wherein the reinforcing member is narrower near the apex.

31. The respiratory mask assembly according to claim 24, wherein the gusset portion includes an outer wall configured to fold over and outside of an inner wall of the gusset portion when the face contacting and non-face contacting portions are compressed towards one another.

32. The respiratory mask assembly according to claim 24, wherein the cushion includes an increased cross-sectional thickness in a region of the non-face contacting portion near the gusset portion.

33. The respiratory mask assembly according to claim 24, wherein the gusset portion includes a constant projected outer area under extension and compression.

34. The respiratory mask assembly according to claim 24, wherein the mask assembly is adapted to supply air at least to the patient'"'"'s nose.

35. The respiratory mask assembly according to claim 34, wherein the mask assembly is adapted to supply air to the patient'"'"'s mouth.

36. The respiratory mask assembly according to claim 24, wherein a thickness of the gusset portion is thinner in cross-section than a thickness of the non-face contacting portion.

37. The respiratory mask assembly according to claim 24, further comprising a forehead support assembly.

38. The respiratory mask assembly according to claim 24, wherein the frame comprises headgear connectors for a headgear assembly.

39. The respiratory mask assembly according to claim 24, further comprising a headgear assembly.

40. The respiratory mask assembly according to claim 24, wherein the gusset portion meets the face contacting portion at the first point and meets the non-face contacting portion at the second point.

41. The respiratory mask assembly according to claim 24, wherein the gusset portion includes only a single gusset.

42. The respiratory mask assembly according to claim 24, wherein the gusset portion is configured and arranged to protrude laterally outwardly with respect to the non-face contacting portion.