Interface comprising a nasal sealing portion

• US 10,603,456 B2
• Filed: 10/31/2012
• Issued: 03/31/2020
• Est. Priority Date: 04/15/2011
• Status: Active Grant

• Current Assignee: Fisher & Paykel Healthcare Limited
• Original Assignee: Fisher & Paykel Healthcare Limited
• Inventors: Bearne, Peter David Alexander, Patel, Roheet, Middelkoop, Kirstin Elizabeth, Cox, Michael John Henri, Mashal, Fadi, Olsen, Gregory James, Mason, Isaac Tristram Tane, Stephenson, Matthew Roger
• Primary Examiner(s): Yao, Samchuan C
• Assistant Examiner(s): Heffner, Ned T
• Application Number:
  US14/354,550
• Publication Number:
  US 20140283842A1
• Time in Patent Office: 2,708 Days
• 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 16/0666 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 16/0825 with ball-sockets
• CPC Class Codes: A61M 16/208 Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
• CPC Class Codes: A61M 2210/0618 Nose
• CPC Class Codes: A61M 2210/0625 Mouth

Abstract

An interface for positive pressure therapy includes a mask assembly and a headgear assembly. The mask assembly comprises a mask seal that is adapted to underlie the nose. The mask seal extends up the lateral sides of the nose. The mask seal has a primary seal below the nose and a secondary seal alongside the nose.

Claims

1. An interface for use in providing positive pressure respiratory therapy, the interface comprising:

a mask assembly comprising a mask seal and a mask base, the mask assembly configured to be fully positioned lower than a bridge of a nose of a face of a user and the mask assembly configured to provide an exposed tip of the nose of the user;

the mask base comprising a central portion and a pair of wings sweeping rearwardly of the central portion, the wings having a greater vertical expanse than the central portion, an opening for a connector being formed on the mask base in the central portion, wherein each of the central portion and the pair of wings define a portion of an outermost perimeter of the mask base;

the mask seal being connected to the mask base and surrounding an entirety of the outermost perimeter of the mask base, the mask seal comprising a thickened region adjacent to the mask base, the mask seal comprising at least one oral opening on a lower portion and at least one nasal opening on an upper portion, the at least one oral opening being positioned opposite of the opening for the connector and the at least one nasal opening being positioned between the opening for the connector and the oral opening in a front to back direction;

and the mask seal comprising a first paddle and a second paddle, an upper surface being positioned between the first paddle and the second paddle such that a upwardly-open valley is defined by the first paddle, the upper surface and the second paddle, at least a portion of the at least one nasal opening being positioned on the upper surface within the valley, uppermost portions of the wings extending vertically above the upper surface, the first paddle comprising a first pocket and the second paddle comprising a second pocket, the first and second pockets being in fluid communication with a chamber defined within the mask assembly, the first and second paddles extending upward to some extent along lateral sides of the nose.

2. The interface of claim 1, wherein the mask seal is adapted to seal under the nose of the user, along a portion of the face of the user adjacent to the nose and around a mouth of the user.

3. The interface of claim 1, wherein the mask assembly is configured to not cover any forward facing portion of the nose of the user.

4. The interface of claim 1, wherein the upper surface slopes downward and rearward in a region surrounding the at least one nasal opening.

5. The interface of claim 1, wherein the first paddle comprises a first ridge positioned between an outwardly facing surface and an inwardly facing surface and wherein the second paddle comprises a second ridge positioned between an outwardly facing surface and an inwardly facing surface, the first and second ridge having an increased rigidity relative to the inwardly facing surface.

6. The interface of claim 1, wherein the mask assembly comprises at least one nasal prong.

7. The interface of claim 1, wherein a lateral contour of the mask seal when viewed from a front of the interface is continuously outwardly facing convex from a greatest lateral expanse of the mask seal to uppermost edges of the first and second paddles.

8. The interface of claim 1, wherein upper edges of the first and second paddles are upwardly facing convex and the upper surface of the mask seal is upwardly facing concave.

9. The interface of claim 1, wherein upper edges of the pair of wings are upwardly facing convex and an upper edge of the central portion is upwardly facing concave.

10. The interface of claim 1, wherein the first and second paddles extend vertically above an upper edge of the pair of wings.

11. The interface of claim 1, wherein the upper surface is hammocked between inner portions of the first and second paddles.

12. The interface of claim 11, wherein downward pressure on the upper surface causes the first and second paddles to deflect toward each other.

13. The interface of claim 1, wherein the seal member comprises a rear surface that is adapted to contact the face of the user and the rear surface comprises a first protrusion and a second protrusion.

14. The interface of claim 13, wherein at least a portion of the first protrusion and at least a portion of the second protrusion are positioned vertically between the upper surface and an uppermost portion of the at least one oral opening.

15. The interface of claim 14, wherein the portion of the first protrusion comprises a first peak and wherein the portion of the second protrusion comprises a second peak.

16. The interface of claim 15, wherein the first peak and the second peak are positioned vertically between a section of the at least one nasal opening and the at least one oral opening.

17. The interface of claim 16, wherein the first peak and the second peak are positioned vertically closer to the at least one nasal opening than to the at least one oral opening.

18. The interface of claim 1, wherein the mask seal is adapted to anchor on two locations of the face.

19. The interface of claim 18, wherein the mask seal is configured to anchor below the lower lip and below the nose.

20. The interface of claim 18, wherein the mask seal is configured to anchor below the lower lip but above the chin and below the nose.

21. The interface of claim 18, wherein the two locations are lower than the bottom of the nose but the mask seal extends upward beyond the bottom of the nose.

22. The interface of claim 21, wherein the mask seal is adapted to seal against the face in locations vertically above the uppermost anchoring location.

23. The interface of claim 1, wherein outer peripheral portions have an increased rigidity relative to inwardly facing portions of the first paddle and the second paddle.

24. The interface of claim 23, wherein the outer peripheral portions have an increased thickness relative to the inwardly facing portions of the first paddle and the second paddle.

25. The interface of claim 24, wherein the at least one nasal prong is inclined toward a medial vertical plane of the mask assembly.

26. The interface of claim 1, wherein the first paddle comprises a first ridge positioned between an outwardly facing surface and an inwardly facing surface and wherein the second paddle comprises a second ridge positioned between an outwardly facing surface and an inwardly facing surface, the first and second ridge having an increased thickness relative to the inwardly facing surface.

27. The interface of claim 1 further comprising a headgear assembly adapted to provide a slightly upward force application between the mask assembly and the face of the user.

28. The interface of claim 27, wherein the headgear assembly is configured to adjust an angle of the mask assembly.

29. The interface of claim 27, wherein the headgear does not include a T-piece.

30. The interface of claim 27, wherein the mask assembly and the headgear assembly are configured such that no portion of the mask assembly or the headgear assembly will contact the face of the user at any location vertically above the eyes at a location horizontally between the outsides of the eyes.

31. A mask assembly for use in providing positive pressure respiratory therapy, the mask assembly comprising:

a mask base comprising a central portion and a pair of wings sweeping rearwardly of the central portion, wherein the central portion and the pair of wings cooperate to define a portion of an outermost perimeter of the mask base, wherein the outermost perimeter has an upper edge, a portion of the upper edge of the outermost perimeter defined by the wings being located vertically above a portion of the upper edge of the outermost perimeter defined by the central portion, the mask base defining an opening for a connector within the central portion;

a mask seal connected to the mask base and surrounding an entirety of the outermost perimeter, the mask seal comprising a thickened region adjacent to the mask base, the mask seal comprising at least one oral opening on a lower portion and at least one nasal opening on an upper portion, the at least one oral opening being positioned opposite of the opening for the connector and the at least one nasal opening being positioned between the opening for the connector and the oral opening in a front to back direction;

the mask seal comprising a first upper lateral portion and a second upper lateral portion, an upper surface located between the first upper lateral portion and the second upper lateral portion such that an upwardly-open valley is defined by the first upper lateral portion, the upper surface and the second upper lateral portion, at least a portion of the at least one nasal opening being positioned on the upper surface within the valley, the first upper lateral portion comprising a first pocket and the second upper lateral portion comprising a second pocket, the first and second pockets being in fluid communication with a chamber defined within the mask assembly, the first and second upper lateral portions extending upward to some extent along lateral sides of the nose;

the mask assembly configured to be fully positioned lower than a bridge of a nose of a face of a user and to provide an exposed tip of the nose of the user.

32. The mask assembly of claim 31, wherein the first and second upper lateral portions extend vertically above the portion of the upper edge of the outermost perimeter defined by the wings.