Breath Sampling Device

• US 20090137920A1
• Filed: 08/16/2006
• Published: 05/28/2009
• Est. Priority Date: 08/16/2005
• Status: Active Grant

• Current Assignee: Oridion Medical (1987) Ltd. (Medtronic Plc)
• Original Assignee: Oridion Medical 1987 Limited (Medtronic Plc)
• Inventors: Colman, Joshua Lewis, Levitsky, Gershon
• Granted Patent: US 9,498,150 B2
• Time in Patent Office: Days
• US Class Current: 600/543
• CPC Class Codes: A61B 5/082 Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath A61B5/083, A61B5/091 take precedence
• CPC Class Codes: A61B 5/097 Devices for facilitating collection of breath or for directing breath into or through measuring devices

Abstract

There is provided a breath sampling tube comprising a deflector adapted to reduce liquid intake into a sampling inlet. There is also provided a breath sampling tube including a deflector adapted to deflect liquid droplets present in breath to reduce liquid at the sampling inlet. There is also provide d a breath sampling system including a gas analyzer and a breath sampling tube comprising a deflector adapted to deflect breath to reduce liquid at the sampling inlet. There is also provided a breath sampling system including a gas analyzer and a breath sampling tube comprising a deflector adapted to deflect liquid droplets present in breath to reduce liquid at the sampling inlet.

Claims

1. A breath sampling tube comprising a deflector adapted to reduce liquid intake into a sampling inlet.

2. The tube according to claim 1, wherein said deflector is adapted to minimize laminar flow disruption.

3. The tube according to claim 1, wherein said tube comprises an airway adapter, wherein said adapter comprises a sampling inlet.

4. The tube according to claim 3, wherein said deflector is adapted to deflect liquid toward the walls of said airway adapter.

5. The tube according to claim 3, wherein said deflector is located within the airway adapter such that the exhaled breath encounters the deflector prior to reaching said sampling inlet.

6. The tube according to claim 3, wherein said deflector is located essentially in Is front of said sampling input.

7. The tube according to claim 3, wherein said deflector comprises one end which is narrower than the opposing end, wherein the narrower end is located farther from said sampling inlet than the opposing end.

8. The tube according to claim 1, wherein said deflector comprises one end which is narrower than the opposing end, wherein the narrower end is located closer to said sampling inlet than the opposing end.

9. The tube according to claim 1, wherein the cross section of said deflector is essentially in a shape of a cone, a pear, an ovoid, a lens, a diamond, a rectangular or any combination thereof.

10. The tube according to claim 1, wherein said deflector is formed essentially in a shape of a vane.

11. The tube according to claim 1, wherein said liquid comprises liquid droplet(s) , particles comprising liquid or a combination thereof.

12. The tube according to claim 1, wherein said liquid comprises water, blood, secretions, medication, saline or any combination thereof.

13. The tube according to claim 1, wherein said deflector comprises a hydrophobic material.

14. A breath sampling tube comprising a deflector adapted to deflect liquid droplets present in breath to reduce liquid at the sampling inlet.

15. The tube according to claim 14, wherein said deflector is adapted to minimize laminar flow disruption.

16. The tube according to claim 14, wherein said tube comprises an airway adapter, wherein said adapter comprises a sampling inlet.

17. The tube according to claim 16, wherein said deflector is adapted to deflect said liquid droplets toward the walls of said airway adapter.

18. The tube according to claim 16, wherein said deflector is located within the airway adapter such that the exhaled breath encounters the deflector prior to reaching said sampling inlet.

19. The tube according to claim 16, wherein said deflector is located essentially in front of said sampling input.

20. The tube according to claim 16, wherein said deflector comprises one end which is narrower than the opposing end, wherein the narrower end is located farther from said sampling inlet than the opposing end.

21. The tube according to claim 16, wherein said deflector comprises one end which is narrower than the opposing end, wherein the narrower end is located closer to said sampling inlet than the opposing end.

22. The tube according to claim 14, wherein the cross section of said deflector is essentially in a shape of a cone, a pear, an ovoid, a lens, a diamond, a rectangular or any combination thereof.

23. The tube according to claim 14, wherein said deflector is formed essentially in a shape of a vane.

24. The tube according to claim 14, wherein said liquid droplets comprises water, blood, secretions, medication, saline or any combination thereof.

25. The tube according to claim 14, wherein said deflector comprises a hydrophobic material.

26. A breath sampling system comprising:

a gas analyzer; and

a breath sampling tube comprising a deflector adapted to deflect breath to reduce liquid at the sampling inlet.

27. The system according to claim 26, wherein said gas analyzer is a capnograph.

28. The system according to claim 26, wherein said deflector is adapted to minimize laminar flow disruption.

29. The system according to claim 26, wherein said tube comprises an airway adapter, wherein said adapter comprises a sampling inlet.

30. The system according to claim 29, wherein said deflector is adapted to deflect liquid toward the walls of said airway adapter.

31. The system according to claim 29, wherein said deflector is located within the airway adapter such that the exhaled breath encounters the deflector prior to reaching said sampling inlet.

32. The system according to claim 29, wherein said deflector is located essentially in front of said sampling input.

33. The system according to claim 29, wherein said deflector comprises one end which is narrower than the opposing end, wherein the narrower end is located farther from said sampling inlet than the opposing end.

34. The system according to claim 29, wherein said deflector comprises one end which is narrower than the opposing end, wherein the narrower end is located closer to said sampling inlet than the opposing end.

35. The system according to claim 26, wherein said deflector is formed essentially in a shape of a cone, a pear, an ovoid, a lens, a diamond, a rectangular or any combination thereof.

36. The system according to claim 26, wherein said deflector is formed essentially in a shape of a vane.

37. The system according to claim 26, wherein said liquid comprises liquid droplet(s), particles comprising liquid or a combination thereof.

38. The system according to claim 26, wherein said liquid comprises water, blood, secretions, medication, saline or any combination thereof.

39. The system according to claim 26, wherein said deflector comprises a hydrophobic material.