Mask system and method for constructing the same

Patent metadata

Field	Value
Publication number	US-8950403-B2
Application number	US-37994009-A
Country	US
Kind code	B2
Filing date	Mar 4, 2009
Priority date	Mar 4, 2008
Publication date	Feb 10, 2015
Grant date	Feb 10, 2015

Abstract

A mask system including a frame module and a cushion module provided to the frame module and adapted to form a seal with the patient's face. The cushion module includes a main body defining a breathing chamber and adapted to interface with the frame module and a cushion adapted to form a seal with the patient's face. The main body and the cushion are comolded with one another.

First claim

What is claimed is:

1. A mask system, comprising:
a frame module;
a cushion module provided to the frame module, the cushion module defining a breathing chamber and adapted to form a seal with a patient's face;
an elbow module adapted to be connected to an air delivery tube that delivers breathable gas to the patient; and
a dynamically adjustable connector provided between the frame module and the cushion module and externally to the breathing chamber, the dynamically adjustable connector including at least a flexible elastic member attached to and extending from a nasal bridge region of the cushion module to positively connect and retain the nasal bridge region of the cushion module to the frame module, the flexible elastic member structured to allow flexibility and substantially free, self-fitting adjustment in at least side-to-side and towards-and-away directions without manual manipulation of the cushion module with respect to the frame module in at least the nasal bridge region.

2. A mask system according to claim 1 , further including a flexible gusset provided between the cushion module and the elbow module.

3. A mask system according to claim 1 , wherein a lower end of the cushion module is pivotally mounted to the frame module and an upper end of the cushion module is coupled to the frame module by the flexible elastic member.

4. A mask system according to claim 1 , wherein the dynamically adjustable connector includes more than one flexible elastic member provided between the frame module and the cushion module.

5. A mask system according to claim 4 , wherein an upper end of the cushion module is coupled to the frame module by the flexible elastic member and opposing sides of the cushion module are coupled to the frame module by respective flexible elastic members.

6. A mask system according to claim 4 , wherein each flexible elastic member is constructed of an elastic material.

7. A mask system according to claim 6 , wherein each flexible elastic member is constructed of silicone.

8. A mask system according to claim 1 , wherein the dynamically adjustable connector allows the cushion module to self adjust as it is positioned into engagement with the patient's face.

9. A mask system according to claim 1 , wherein the flexible elastic member provides a biasing force between the frame module and the cushion module to bias the cushion module into the patient's face while allowing the cushion module to selectively adjust and/or self-fit to the patient's face.

10. A mask system according to claim 1 , wherein the dynamically adjustable connector provides a flexible connection between the frame module and the cushion module to decouple rigid connections between the frame module and the cushion module and allow substantially free, self-fitting adjustment.

11. A mask system according to claim 1 , wherein the flexible elastic member provides a biasing force between the frame module and the cushion module to bias the cushion module into the patient's face.

12. A mask system according to claim 1 , wherein the flexible elastic member allows an angle between the cushion module and the frame module to be adjusted to match a shape or angle of the patient's face.

13. A mask system according to claim 1 , wherein the flexible elastic member allows adjustment or flexibility of the cushion module with respect to the frame module in an infinite number of positions.

14. A mask system according to claim 1 , wherein the dynamically adjustable connector provides an infinite number of cushion module positions between the frame module and the cushion module without any locking mechanisms between the frame module and the cushion module to restrict or limit movement.

15. A mask system according to claim 1 , wherein the flexible elastic member includes an adjustable length to vary the elasticity or spring force of the flexible elastic member.

16. A mask system according to claim 1 , wherein the flexible elastic member is adjustable to vary force applied to the patient's face by the cushion module.

17. A mask system according to claim 1 , wherein the flexible elastic member is permanently attached to the cushion module.

18. A mask system according to claim 17 , wherein the flexible elastic member is permanently attached to the frame module.

19. A mask system according to claim 17 , wherein the flexible elastic member is releasably attached to the frame module.

20. A mask system according to claim 1 , wherein the cushion module is free to move along at least horizontal and vertical axes.

21. A mask system according to claim 1 , wherein the flexible elastic member is attached to and extends from an exterior surface of the cushion module and externally to the breathing chamber.

22. A mask system according to claim 1 , wherein the dynamically adjustable connector is external to a flow of breathable gas to the patient.

23. A mask system according to claim 1 , wherein the frame module comprises a forehead support including a base, wherein the dynamically adjustable connector extends between the cushion module and the base of the forehead support.

24. A mask system according to claim 23 , wherein the dynamically adjustable connector extends from an exterior surface of the cushion module to the base of the forehead support.

Assignees

• Howard Scott Alexander
• Selvarajan Karthikeyan
• Skipper Christopher Scott
• Reid Michael John
• Resmed Ltd

Inventors

• Howard Scott Alexander
• Selvarajan Karthikeyan
• Skipper Christopher Scott
• Reid Michael John

Classifications

• A61M16/06 Primary

  Respiratory or anaesthetic masks · CPC title

• A61M16/0633

  with forehead support · CPC title

• A61M16/0611

  with a gusset portion · 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

• A61M16/0683

  Holding devices therefor · CPC title