Oral nasal cannula

• US 20070272247A1
• Filed: 04/25/2006
• Published: 11/29/2007
• Est. Priority Date: 04/25/2006
• Status: Abandoned Application

• Current Assignee: Oridion Medical 1987 Limited (Medtronic Plc)
• Original Assignee: Oridion Medical (1987) Ltd. (Medtronic Plc)
• Inventors: Porat, Ron
• Application Number:
  US11/410,503
• Publication Number:
  US 20070272247A1
• Time in Patent Office: Days
• US Class Current: 128/206.280
• 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 16/0672 Nasal cannula assemblies for oxygen therapy
• CPC Class Codes: A61M 16/085 Gas sampling
• CPC Class Codes: A61M 2210/0625 Mouth
• CPC Class Codes: A61M 2230/432 partial CO2 pressure (P-CO2)

Abstract

There is provided a cannula which may include a spacer adapted to maintain a minimum distance between at least a portion of an oral cavity and at least a portion of an oral breath collector and at least one nasal breath collector. There is also provided a method for sampling exhaled breath including positioning a cannula on a face of a subject, wherein the cannula may include a spacer adapted to maintain a minimum distance between at least a portion of an oral cavity and at least a portion of an oral breath collector and at least one nasal breath collector.

Claims

1. A cannula comprising:

a spacer adapted to maintain a minimum distance between at least a portion of an oral cavity and at least a portion of an oral breath collector.

2. The cannula of claim 1, further comprising at least one nasal breath collector.

3. The cannula of claim 1, wherein said spacer is shaped in a form of a wedge.

4. The cannula of claim 2, wherein said wedge comprises an upper edge and a lower edge, wherein the upper edge is thinner than the lower thick edge.

5. The cannula of claim 1, wherein said at least a portion of oral cavity comprises an upper lip.

6. The cannula of claim 1, wherein said oral breath collector comprises a scoop adapted to collect orally exhaled breath.

7. The cannula of claim 1, wherein said oral breath collector is adapted to direct oral exhaled toward a suction port.

8. The cannula of claim 1, wherein said oral breath collector is adapted to cover a substantial portion of the oral cavity.

9. The cannula of claim 2, wherein said nasal breath collector comprises a nasal prong which is adapted to be at least partially inserted into a nostril.

10. The cannula of claim 1, further comprising at least one oral oxygen delivery port.

11. The cannula of claim 10, wherein said at least one oral oxygen delivery port is adapted to deliver oxygen around said oral scoop.

12. The cannula of claim 1, further comprising at least one nasal oxygen delivery port.

13. The cannula of claim 12, wherein said at least one nasal oxygen delivery port comprises a plurality of oxygen delivery holes.

14. The cannula of claim 12, wherein said at least one nasal oxygen delivery port comprises a nasal oxygen delivery prong adapted to be at least partially inserted into a nostril of a subject.

15. The cannula of claim 12, further comprising a separator, adapted to maintain a predetermined distance between said at least one nasal oxygen delivery port and a nostril of a subject.

16. The cannula of claim 2, being formed with an angle between said at least one oral breath collector and said nasal breath collector.

17. The cannula of claim 16, wherein said angle is in the range of 125-145 degrees.

18. A cannula comprising a spacer adapted to maintain a minimum distance between at least a portion of an oral cavity and at least a portion of an oral breath collector, wherein said cannula is coupled to a breath test analyzer.

19. The cannula of claim 18, further comprising at least one nasal breath collector.

20. A method for sampling exhaled breath comprising:

positioning a cannula on a face of a subject, wherein the cannula comprises

a spacer adapted to maintain a minimum distance between at least a portion of an oral cavity and at least a portion of an oral breath collector.

21. The method of claim 20, further comprising at least one nasal breath collector.

22. The method of claim 20, wherein said spacer is shaped in a form of a wedge.

23. The method of claim 22, wherein said wedge comprises an upper thin edge and a lower thick edge.

24. The method of claim 22, wherein said at least a portion of oral cavity comprises an upper lip.

25. The method of claim 21, wherein said positioning comprising forming an angle between said at least one oral breath collector and said nasal breath collector.

26. The method of claim 25, wherein said angle is in the range of 125-145 degrees.

27. The method of claim 21, further comprising at least partially inserting said at least one nasal breath collector into a nostril.

28. The method of claim 27, further comprising sampling exhaled breath collected from said oral cavity, said nostril or both using a gas analyzer coupled to said cannula.

29. The method of claim 28, further comprising providing oxygen through a nasal oxygen delivery port, an oral oxygen delivery port or both.