Respiratory mask having intraoral mouthpiece with large sealing area and multiple sealing configuration

• US 6,981,502 B2
• Filed: 04/01/2004
• Issued: 01/03/2006
• Est. Priority Date: 04/01/2004
• Status: Active Grant

• Current Assignee: Numask Incorporated
• Original Assignee: Numask Incorporated
• Inventors: Jou, William, McCormick, James J., Anthony, David, Isagholian, David
• Primary Examiner(s): Bennett, Henry
• Assistant Examiner(s): PATEL, NIHIR B
• Application Number:
  US10/816,702
• Publication Number:
  US 20050217678A1
• Time in Patent Office: 642 Days
• Field of Search: 128/200.26, 128/201.26, 128/206.29, 128/207.14, 128/207.15, 128/859, 128/861, 128/863
• US Class Current: 128/206.29
• CPC Class Codes: A61M 16/0493 with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block
• CPC Class Codes: A61M 16/0495 with tongue depressors
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/0841 for sampling
• CPC Class Codes: A61M 2205/0216 Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking

Abstract

A respiratory mask provides improved sealing through the use of an intraoral mouthpiece with a large sealing area. A tubular extension, configured at one end to accept standard respiratory fittings, is the conduit for gas delivery to the intraoral mouthpiece. The respiratory mask may also include an intraoral oropharyngeal airway which flexes so that it can be inserted without the need for rotation or use of a tongue blade. The respiratory mask may also include an external shield to enhance sealing and provide a barrier of protection for the healthcare provider. The mask'"'"'s design allows for a novel handgrip technique that allows a single healthcare provider to ventilate with enhanced sealing.

Claims

1. A respiratory mask, comprising:

an intraoral mouthpiece comprising;

a substantially oval and bowed sheet of material having an inner surface, an outer surface, a top portion, a bottom portion, an upper edge, and a lower edge;

a central orifice through the approximate center of the substantially oval and bowed sheet of material;

a tubular extension having a proximal end, a distal end, and a conduit, wherein the conduit of the tubular extension at the proximal end of the tubular extension feeds into the central orifice of the intraoral mouthpiece, the proximal end of the tubular extension terminating substantially coextensive with the inner surface of the sheet of material; and

a reinforced collar surrounding a portion of the tubular extension; and

wherein the substantially oval and bowed sheet of material is configured to fit between gums and lips of a person, extending upward and downward substantially parallel to the gums and teeth of the person beyond the gumline of the person, and extending posteriorly in the mouth of the person.

2. The respiratory mask of claim 1, wherein the intraoral mouthpiece further comprises at least one notch having an open side and an apex positioned so that the open side of the at least one notch is laterally centered on an edge of the substantially oval and bowed sheet of material and the apex is pointed toward the central orifice through the intraoral mouthpiece.

3. The respiratory mask of claim 1, wherein the top portion of the sheet of material is offset in an anterior-posterior plane with respect to the bottom portion of the intraoral mouthpiece.

4. The respiratory mask of claim 1, further comprising a port extending through the tubular extension.

5. The respiratory mask of claim 1, wherein the inner and outer surfaces of the substantially oval and bowed sheet of material of the intraoral mouthpiece are substantially smooth, and the upper and lower edges of the substantially oval and bowed sheet of material are substantially rounded.

6. The respiratory mask of claim 1, wherein the intraoral mouthpiece is comprised of plastic, rubber, or silicone.

7. The respiratory mask of claim 1, further comprising an intraoral oropharyngeal airway having a proximal end and a distal end wherein the intraoral oropharyngeal airway provides an extension of the conduit of the tubular extension into the mouth of the person.

8. The respiratory mask of claim 7, wherein the intraoral oropharyngeal airway has at least one row of notches towards the distal end of the intraoral oropharyngeal airway.

9. The respiratory mask of claim 7, wherein the intraoral mouthpiece further comprises a recess on the inner surface of the sheet of material, said recess configured to mate with the proximal end of the intraoral oropharyngeal airway and wherein the intraoral oropharyngeal airway is positioned such that the proximal end of the intraoral oropharyngeal airway mates with the recess on the sheet of material.

10. The respiratory mask of claim 7, wherein the intraoral oropharyngeal airway is slidably inserted into the distal end of the tubular extension of the respiratory mask such that the proximal end of the intraoral oropharyngeal airway is positioned outside the distal end of the tubular extension.

11. A respiratory mask, comprising:

a substantially bowed, intraoral mouthpiece comprising an inner surface, an outer surface, a top portion, a bottom portion, an upper edge, and a lower edge, the mouthpiece extending between a first lateral edge and a second lateral edge, the mouthpiece defining a central orifice through an approximate center of the first and second lateral edges; and

a tubular extension having a proximal end, a distal end, and a conduit, wherein the conduit of the tubular extension at the proximal end of the tubular extension feeds into the central orifice of the mouthpiece, the proximal end of the tubular extension terminating substantially coextensive with the inner surface of the mouthpiece;

wherein the mouthpiece is configured to fit between a person'"'"'s gums and lips, extends upward and downward substantially parallel to the gums and teeth of the person, and extends posteriorly in the person'"'"'s mouth.

12. The respiratory mask of claim 11, wherein the mouthpiece further comprises a notch having an open side and an apex positioned so that the open side of the notch is laterally centered on the upper edge of the mouthpiece and the apex is pointed toward the central orifice of the mouthpiece.

13. The respiratory mask of claim 11, wherein the mouthpiece further comprises a notch having an open side and an apex positioned so that the open side of the notch is laterally centered on the lower edge of the mouthpiece and the apex is pointed toward the central orifice of the mouthpiece.

14. The respiratory mask of claim 11, wherein the top portion of the mouthpiece is offset in an anterior-posterior plane with respect to the bottom portion of the mouthpiece.

15. The respiratory mask of claim 11, further comprising a port extending through the tubular extension.

16. The respiratory mask of claim 11, wherein the inner and outer surfaces of the mouthpiece are substantially smooth, and the upper and lower edges of the mouthpiece are substantially rounded.

17. The respiratory mask of claim 11, wherein the mouthpiece is comprised of plastic, rubber, or silicone.

18. The respiratory mask of claim 11, further comprising a separable intraoral oropharyngeal airway having a proximal end and a distal end, the airway being adapted to couple to the tubular extension into the mouth of the person.

19. The respiratory mask of claim 18, wherein the airway has at least one row of notches towards the distal end of the airway.

20. The respiratory mask of claim 18, wherein the mouthpiece further comprises a recess on the inner surface, the recess configured to receive the proximal end of the airway, the airway being positioned such that the proximal end of the airway mates with the recess on the mouthpiece.

21. The respiratory mask of claim 11, wherein the mouthpiece has a shape adapted to conform to an inner surface of the gums and lips of the person.

22. The respiratory mask of claim 11, further comprising a reinforced collar that surrounds a portion of the tubular extension.

23. The respiratory mask of claim 11, wherein the mouthpiece has a substantially oval shape.

24. A respiratory mask, comprising:

a substantially bowed, intraoral mouthpiece comprising an inner surface, an outer surface, a top portion, a bottom portion,. an upper edge, and a lower edge, the mouthpiece extending between a first lateral edge and a second lateral edge, the mouthpiece defining a central orifice through an approximate center of the first and second lateral edges; and

a tubular extension having a proximal end, a distal end, and a conduit, wherein the conduit of the tubular extension at the proximal end of the tubular extension feeds into the central orifice of the mouthpiece;

wherein the mouthpiece is configured to fit between a person s gums and lips, extends upward and downward substantially parallel to the gums and teeth of the person, and extends posteriorly in the person'"'"'s mouth; and

wherein a first lateral portion of the mouthpiece between the central orifice and the first lateral edge provides lateral flexibility, and a second lateral portion of the mouthpiece between the central orifice and the second lateral edge also provides lateral flexibility, thereby facilitating introduction and removal of the mouthpiece from the patient'"'"'s mouth.

25. The respiratory mask of claim 24, wherein the mouthpiece further comprises a notch having an open side and an apex positioned so that the open side of the notch is laterally centered on the upper edge of the mouthpiece and the apex is pointed toward the central orifice of the mouthpiece.

26. The respiratory mask of claim 24, wherein the mouthpiece further comprises a notch having an open side and an apex positioned so that the open side of the notch is laterally centered on the lower edge of the mouthpiece and the apex is pointed toward the central orifice of the mouthpiece.

27. The respiratory mask of claim 24, wherein the top portion of the mouthpiece is offset in an anterior-posterior plane with respect to the bottom portion of the mouthpiece.

28. The respiratory mask of claim 24, further comprising a port extending through the tubular extension.

29. The respiratory mask of claim 24, wherein the inner and outer surfaces of the mouthpiece are substantially smooth, and the upper and lower edges of the mouthpiece are substantially rounded.

30. The respiratory mask of claim 24, wherein the mouthpiece is comprised of plastic, rubber, or silicone.

31. The respiratory mask of claim 24, further comprising a separable intraoral oropharyngeal airway having a proximal end and a distal end, the airway being adapted to couple to the tubular extension into the mouth of the person.

32. The respiratory mask of claim 31, wherein the airway has at least one rowof notches towards the distal end of the airway.

33. The respiratory mask of claim 31, wherein the mouthpiece further comprises a recess on the inner surface, the recess configured to receive the proximal end of the airway, the airway being positioned such that the proximal end of the airway mates with the recess on the mouthpiece.

34. The respiratory mask of claim 24, wherein the mouthpiece has a shape adapted to conform to an inner surface of the gums and lips of the person.

35. The respiratory mask of claim 24, further comprising a reinforced collar that surrounds a portion of the tubular extension.

36. The respiratory mask of claim 24, wherein the mouthpiece has a substantially oval shape.