Ergonomic and adjustable respiratory mask assembly with headgear assembly

Patent metadata

Field	Value
Publication number	US-2016367780-A1
Application number	US-201615252909-A
Country	US
Kind code	A1
Filing date	Aug 31, 2016
Priority date	Apr 23, 2002
Publication date	Dec 22, 2016
Grant date	—

Abstract

A respiratory mask assembly for delivering breathable gas to a patient includes a frame having a main body and a side frame member provided on each lateral side of the main body. Each side frame member includes an integrally formed first connector portion. A headgear assembly is removably attachable to the frame. The headgear assembly has a second connector portion adapted to be removably coupled with the first connector portion provided on the frame. The second connector portion is manually movable to a releasing position to detach the headgear assembly from the frame. The headgear assembly is rotationally adjustable with respect to the frame.

First claim

What is claimed is:

1 . A patient interface for treating a patient with a respiratory disorder, the patient interface comprising:
a frame having an opening to receive pressurized breathable gas; at least one cushion to receive the pressurized breathable gas via the opening; headgear including only two straps that connect with the patient interface to support the patient interface on the patient's head, the headgear not including a chin strap; and a stiffening support structure projecting away from each side of the frame to stabilize the patient interface on the patient's head, each stiffening support structure being contoured to engage the patient's cheek in use.

2 . The patient interface of claim 1 , wherein the two straps are connected to the frame at only two connection points.

3 . The patient interface of claim 1 , wherein, as a unit, the cushion and the frame are rotatable relative to the headgear.

4 . The patient interface of claim 3 , wherein the unit is rotatable in a plurality of predetermined positions.

5 . The patient interface of claim 4 , wherein the unit is rotatably lockable in the predetermined positions.

6 . The patient interface of claim 1 , wherein each said stiffening support structure includes an end with a slot to receive an end of a rear headgear.

7 . The patient interface of claim 1 , further comprising a fabric material positioned along an inner surface of each said stiffening support structure.

8 . The patient interface of claim 1 , wherein the cushion includes a nasal cushion.

9 . The patient interface of claim 1 , wherein the cushion includes a pair of nasal pillows.

10 . The patient interface of claim 1 , wherein each stiffening support structure is detachably connected to the frame.

11 . The patient interface of claim 1 , wherein each stiffening support structure is associated with a clip that is detachably connected to the frame.

12 . The patient interface of claim 1 , wherein the cushion is detachably connected to the frame.

13 . The patient interface of claim 1 , wherein the cushion includes a lug that resiliently flexes and locks with an undercut in the frame when the frame and the cushion are connected.

14 . The patient interface of claim 1 , wherein the at least one cushion includes a plurality of cushions each of a different size, each said cushion being detachably connectable with the frame.

15 . The patient interface of claim 1 , wherein the cushion is permanently connected to the frame.

16 . The patient interface of claim 1 , further comprising a tube having a first end coupled proximate the opening and a second end having a swivel configured to connect to an air delivery tube.

17 . The patient interface of claim 16 , further comprising a rotatable elbow connecting the opening of the frame and the first end of the tube.

18 . The patient interface of claim 1 , further comprising a plurality of vents for washout of patient-exhaled CO 2 .

19 . The patient interface of claim 1 , wherein:
the two straps are connected to the frame at only two connection points; each said stiffening support structure includes an end with a slot to receive a strap end of a rear headgear; the cushion includes a nasal cushion; the patient interface further comprises a tube having a first end coupled proximate the opening and a second end having a swivel configured to connect to an air delivery tube; and the patient interface further comprises a plurality of vents for washout of patient-exhaled CO 2 .

20 . The patient interface of claim 19 , wherein the cushion is detachably connected to the frame.

21 . The patient interface of claim 20 , wherein the cushion includes a lug that resiliently flexes and locks with an undercut in the frame when the frame and the cushion are connected.

22 . The patient interface of claim 21 , wherein the at least one cushion includes a plurality of cushions each of a different size, each said cushion being detachably connectable with the frame.

23 . The patient interface of claim 19 , wherein the cushion is permanently connected to the frame.

24 . The patient interface of claim 19 , further comprising a rotatable elbow connecting the opening of the frame and the first end of the tube.

25 . The patient interface of claim 1 , wherein the two straps are connected to the frame at only two connection points;
the patient interface further comprises a fabric material positioned along an inner surface of each said stiffening support structure; the cushion includes a pair of nasal pillows; the cushion is detachably connected to the frame; the cushion includes a lug that resiliently flexes and locks with an undercut in the frame when the frame and the cushion are connected; the at least one cushion includes a plurality of cushions each of a different size, each said cushion being detachably connectable with the frame; the patient interface further comprises a tube having a first end coupled proximate the opening and a second end having a swivel configured to connect to an air delivery tube; and the patient interface further comprises a plurality of vents for washout of patient-exhaled CO 2 .

26 . The patient interface of claim 25 , further comprising a rotatable elbow connecting the opening of the frame and the first end of the tube.

Assignees

• Resmed Ltd

Inventors

• Ging Anthony Michael
• Nasr Saad

Classifications

• A61M2206/14

  Static flow deviators in tubes disturbing laminar flow in tubes, e.g. archimedes screws · CPC title

• A61M16/0683 Primary

  Holding devices therefor · CPC title

• A61M16/0616

  with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure · CPC title

• A62B18/084

  Means for fastening gas-masks to heads or helmets · CPC title

• A61M16/0057

  Pumps therefor · CPC title