Compact oronasal patient interface

• US 9,067,033 B2
• Filed: 05/09/2011
• Issued: 06/30/2015
• Est. Priority Date: 12/31/2003
• Status: Active Grant

• Current Assignee: ResMed Pty Ltd. (ResMed Incorporated)
• Original Assignee: Resmed Limited (ResMed Incorporated)
• Inventors: Davidson, Aaron Samuel, Gunaratnam, Michael Kassipillai, Lynch, Susan Robyn, Raje, Milind Chandrakant, Robinson, Gary Christopher, Lubke, Steven John, Smart, Gregory Scott, Kwok, Philip Rodney, Scheiner, Rupert Christian
• Primary Examiner(s): DOUGLAS, STEVEN O
• Application Number:
  US13/103,491
• Publication Number:
  US 20110209709A1
• Time in Patent Office: 1,513 Days
• Field of Search: 128/206.21, 128/206.24, 128/206.28, 128/206.29, 128/207.11
• US Class Current: 1/1
• CPC Class Codes: A61M 16/0057 Pumps therefor
• 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 16/0666 Nasal cannulas or tubing devices for improving normal breathing through the nose A61F5/08; nose filters A62B23/06; outside holding devices A61M25/02
• CPC Class Codes: A61M 16/0683 Holding devices therefor
• CPC Class Codes: A61M 16/0816 Joints or connectors
• CPC Class Codes: A61M 16/0825 with ball-sockets
• CPC Class Codes: A61M 16/0858 Pressure sampling ports
• CPC Class Codes: A61M 16/208 Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
• CPC Class Codes: A62B 18/084 Means for fastening gas-masks to heads or helmets

Abstract

A breathing arrangement includes a patient interface, at least one inlet conduit, and a headgear assembly. The patient interface includes a mouth covering assembly including a cushion structured to sealingly engage around exterior of a patient'"'"'s mouth in use, a nozzle assembly including a pair of nozzles structured to sealingly engage within nasal passages of a patient'"'"'s nose in use, and a flexible element connecting the mouth covering assembly and the nozzle assembly. The at least one inlet conduit is structured to deliver breathable gas into at least one of the mouth covering assembly and the nozzle assembly for breathing by the patient. The headgear assembly is removably connected to at least one of the mouth covering assembly and the nozzle assembly so as to maintain the mouth covering assembly and the nozzle assembly in a desired position on the patient'"'"'s face.

Claims

1. A breathing arrangement for use between a patient and a structure to deliver a flow of pressurized breathable gas to the patient for treatment of sleep disordered breathing, the breathing arrangement comprising:

a ventilation interface defining a gas entry port to be fluidically connected to the structure to deliver the flow of pressurized breathable gas;

an oral interface provided to said ventilation interface, the oral interface configured to seal only along an exterior of the patient'"'"'s mouth when applied to the patient'"'"'s face;

a nasal interface configured to fluidically couple the gas entry port with nares of the patient when the nasal interface is applied to the patient'"'"'s nose without forming a seal on a nasal bridge region of the patient'"'"'s face; and

headgear connected to at least one of the ventilation interface and the nasal interface so as to maintain the oral interface and the nasal interface in a desired position on the patient'"'"'s face and maintain a substantially gas-tight seal between the patient'"'"'s face and the oral interface and the nasal interface,

wherein the oral interface includes an elastomeric side wall, and the nasal interface is flexibly connected to and supported along the elastomeric side wall to provide flexibility between the nasal interface and the oral interface and provide for movement and changes in alignment between the nasal interface and the oral interface.

2. The breathing arrangement according to claim 1, further comprising a flexible element to flexibly connect the nasal interface and the oral interface.

3. The breathing arrangement according to claim 2, wherein the flexible element is structured to allow gas to pass between the oral interface and the nasal interface so that pressurized breathable gas is delivered to both the patient'"'"'s nose and the patient'"'"'s mouth in use.

5. The breathing arrangement according to claim 1, wherein the ventilation interface comprises a frame.

6. The breathing arrangement according to claim 1, wherein the ventilation interface comprises at least one vent.

7. The breathing arrangement according to claim 1, wherein the ventilation interface is relatively rigid and the oral interface is relatively flexible.

8. The breathing arrangement according to claim 1, wherein the ventilation interface and the oral interface are constructed of different materials.

9. The breathing arrangement according to claim 1, wherein the ventilation interface comprises a polycarbonate material.

10. The breathing arrangement according to claim 1, wherein the oral interface comprises a silicone material.

11. The breathing arrangement according to claim 1, wherein the oral interface is integral with the ventilation interface.

12. The breathing arrangement according to claim 1, wherein the oral interface is removably and substantially gas-tightly connected to the ventilation interface.

13. The breathing arrangement according to claim 12, wherein the oral interface is connected to the ventilation interface via a clip.

15. The breathing arrangement according to claim 1, wherein the oral interface, the nasal interface, and the ventilation interface are integral to form a one-piece oral and nasal mask.

16. The breathing arrangement according to claim 1, wherein the oral interface includes a cushion comprising an aperture adapted to receive the patient'"'"'s mouth.

17. The breathing arrangement according to claim 16, wherein the cushion includes a non-face-contacting portion and a face-contacting portion, the non-face-contacting portion being provided to the ventilation interface and the face-contacting portion having a resilient membrane structured to provide a seal.

18. The breathing arrangement according to claim 17, wherein the cushion includes the side wall, and the cushion further includes a rim extending away from the side wall, and the membrane is spaced from and substantially surrounds the rim.

19. The breathing arrangement according to claim 1, wherein the oral interface includes a gusset portion.

20. The breathing arrangement according to claim 1, wherein the gas entry port is disposed on a front surface of the ventilation interface.

21. The breathing arrangement according to claim 1, wherein the nasal interface includes two separate openings to deliver the flow of pressurized breathable gas to the patient'"'"'s nares when the nasal interface is applied to the patient'"'"'s nose.

22. The breathing arrangement according to claim 1, wherein the nasal interface comprises two separate nasal pillows adapted to deliver the flow of pressurized breathable gas to the patient'"'"'s nares.

23. The breathing arrangement according to claim 1, wherein the ventilation interface includes a swiveling elbow connector to attach the ventilation interface to the structure to deliver the flow of pressurized breathable gas.

24. The breathing arrangement according to claim 23, wherein the elbow connector includes an anti-asphyxia valve.

25. The breathing arrangement according to claim 1, wherein the oral interface and the ventilation interface define a first interior breathing chamber fluidically connected to the gas entry port for receiving the gas therein, and the nasal interface defines a second interior breathing chamber fluidically connected to first interior breathing chamber for supplying the gas to the patient'"'"'s nose.

26. The breathing arrangement according to claim 1, wherein the oral interface and the nasal interface form one chamber.

27. The breathing arrangement according to claim 1, wherein the headgear is adjustable.

28. The breathing arrangement according to claim 1, wherein the ventilation interface includes lower headgear connector portions on each side thereof.

29. The breathing arrangement according to claim 28, further comprising clips structured to attach the headgear to respective lower headgear connector portions.

30. The breathing arrangement according to claim 29, wherein the clips are rotatable with respect to respective lower headgear connector portions.

31. The breathing arrangement according to claim 1, wherein at least one of the nasal interface and the ventilation interface includes headgear connectors to connect the headgear.

32. The breathing arrangement according to claim 31, wherein both the nasal interface and the ventilation interface include headgear connectors to connect the headgear.

33. The breathing arrangement according to claim 31, wherein only the ventilation interface includes headgear connectors to connect the headgear.

34. The breathing arrangement according to claim 1, wherein the headgear includes upper side straps adapted to extend over the patient'"'"'s ears and lower side straps adapted to extend below the patient'"'"'s ears.

35. The breathing arrangement according to claim 1, wherein the headgear provides force vectors that allow for effective sealing of the oral interface at the patient'"'"'s mouth and the nasal interface at the patient'"'"'s nose, respectively.

36. The breathing arrangement according to claim 35, wherein the headgear assembly includes upper side straps adapted to be routed over the patient'"'"'s ears and lower side straps adapted to be routed under the patient'"'"'s ears.

37. The breathing arrangement according to claim 36, wherein the upper and lower side straps are adapted to provide respective force vectors that allow for the effective sealing.

38. The breathing arrangement according to claim 36, wherein the upper side straps are arranged to provide a force vector that is angled upwardly with respect to a horizontal plane of the breathing arrangement.

39. The breathing arrangement according to claim 36, wherein the lower side straps are arranged to provide a force vector that is generally aligned with a horizontal plane of the breathing arrangement.

40. The breathing arrangement according to claim 2, wherein the flexible element is structured to support the nasal interface in its entirety along the side wall to provide flexibility between the nasal interface and the oral interface and provide for independent movement between the entire nasal interface and the oral interface.

41. The breathing arrangement according to claim 10, wherein the flexible element allows the entire nasal interface to be independently aligned with respect to the oral interface.

4. A breathing arrangement for use between a patient and a structure to deliver a flow of pressurized breathable gas to the patient for treatment of sleep disordered breathing, the breathing arrangement comprising:

a ventilation interface defining a gas entry port to be fluidically connected to the structure to deliver the flow of pressurized breathable gas;

an oral interface provided to said ventilation interface, the oral interface configured to seal only along an exterior of the patient'"'"'s mouth when applied to the patient'"'"'s face;

a nasal interface configured to fluidically couple the gas entry port with nares of the patient when the nasal interface is applied to the patient'"'"'s nose without forming a seal on a nasal bridge region of the patient'"'"'s face; and

a bellows to flexibly connect the nasal interface and the oral interface,

wherein the nasal interface is flexibly connected to the oral interface to provide flexibility between the nasal interface and the oral interface and provide for movement and changes in alignment between the nasal interface and the oral interface.

14. A breathing arrangement for use between a patient and a structure to deliver a flow of pressurized breathable gas to the patient for treatment of sleep disordered breathing, the breathing arrangement comprising:

a ventilation interface defining a gas entry port to be fluidically connected to the structure to deliver the flow of pressurized breathable gas;

an oral interface provided to said ventilation interface, the oral interface including a face-contacting portion configured to seal only along an exterior of the patient'"'"'s mouth when applied to the patient'"'"'s face, and the face-contacting, portion defining an aperture adapted to be in direct fluid communication with the patient'"'"'s mouth for delivery of the flow of pressurized breathable gas to the patient'"'"'s mouth; and

a nasal interface configured to fluidically couple the gas entry port with nares of the patient when the nasal interface is applied to the patient'"'"'s nose without forming a seal on a nasal bridge region of the patient'"'"'s face,

wherein the oral interface and the nasal interface are integrally formed as a one-piece structure, and

wherein the nasal interface is flexibly connected to the oral interface to provide flexibility between the nasal interface and the oral interface and provide for movement and changes in alignment between the nasal interface and the oral interface.