Airway assembly

• US 20040000314A1
• Filed: 03/20/2003
• Published: 01/01/2004
• Est. Priority Date: 03/20/2002
• Status: Abandoned Application

• Current Assignee: Board of Regents of the University of Texas System (University of Texas System)
• Original Assignee: Board of Regents of the University of Texas System (University of Texas System)
• Inventors: Angel, Luis F.
• Application Number:
  US10/396,135
• Publication Number:
  US 20040000314A1
• Time in Patent Office: Days
• US Class Current: 128/207.14
• CPC Class Codes: A61M 16/04 Tracheal tubes catheters in general A61M25/00
• CPC Class Codes: A61M 16/0404 with means for selective or partial lung respiration
• CPC Class Codes: A61M 16/042 with separate conduits for in-and expiration gas, e.g. for limited dead volume
• CPC Class Codes: A61M 16/0434 Cuffs
• CPC Class Codes: A61M 16/0463 combined with suction tubes, catheters or the like; Outside connections
• CPC Class Codes: A61M 16/0479 above the cuff, e.g. giving access to the upper trachea
• CPC Class Codes: A61M 16/0486 Multi-lumen tracheal tubes
• CPC Class Codes: A61M 16/085 Gas sampling
• CPC Class Codes: A61M 2016/0027 pressure meter
• CPC Class Codes: A61M 2016/0413 with detectors of CO2 in exhaled gases

Abstract

An airway assembly may be used in a procedure that requires instrumentation to be inserted in an air passage of a patient. The airway assembly may include a reinforced and flexible first conduit, an expandable member, a second conduit and a third conduit. The second and third conduit may couple to an outer surface of the first conduit. Coupling the second and third conduits to an outer surface of the first conduit may allow the first conduit to have an unobstructed lumen that facilitates insertion of instruments into a patient. Fluid may be removed through the second conduit. Ventilation of a patient may be performed through the third conduit. The expandable member may seal against the air passage and inhibit fluid from passing from a first region to a second region and/or inhibit fluid from passing from the second region to the first region.

Claims

1. An airway assembly comprising:

a first conduit comprising reinforcement to inhibit collapse of the first conduit;

an expandable member coupled to a portion of the first conduit, wherein the expandable member is configured to expand against an air passage to inhibit fluid flow past the expandable member;

a second conduit comprising a first end that extends past the expandable member, wherein a portion of the second conduit is positioned external to a lumen of the first conduit and wherein the second conduit is configured to provide for removal of at least one fluid distal to expandable member; and

a third conduit comprising a first end that terminates above the expandable member, wherein a portion of the third conduit is positioned external to a lumen of the first conduit.

2. The airway assembly of claim 1, wherein a portion of the first conduit is partially flexible.

3. The airway assembly of claim 1, wherein reinforcement of the first conduit comprises one or more rings positioned in a body of the first conduit.

4. The airway assembly of claim 1, wherein the first conduit diameter is greater than about 3 mm and less than about 22 mm.

5. The airway assembly of claim 1, wherein the expandable member comprises an inflatable balloon and an inflation conduit.

6. The airway assembly of claim 1, wherein the inflated expandable member blocks the air passage.

7. The airway assembly of claim 1, wherein the second conduit diameter is greater than about 0.1 mm and less than about 3.0 mm.

8. The airway assembly of claim 1, wherein the first end of the second conduit terminates at a distance greater than about 0.01 cm and less than about 0.5 cm from a first end of the first conduit.

9. The airway assembly of claim 1, wherein the second conduit is coupled to an outer surface of the first conduit.

10. The airway assembly of claim 1, further comprising a ventilator configured to couple to the third conduit.

11. The airway assembly of claim 1, further comprising a capnography monitor for CO₂ analysis configured to couple to the third conduit.

12. The airway assembly of claim 1, wherein the third conduit diameter is greater than about 0.1 mm and less than about 3.0 mm.

13. The airway assembly of claim 1, wherein the third conduit is coupled to the outer surface of the first conduit.

14. The airway assembly of claim 1, further comprising a biopsy needle insertable in the lumen of the first conduit.

15. The airway assembly of claim 1, further comprising an endoscope insertable in the lumen of the first conduit.

16. The airway assembly of claim 1, wherein the third conduit is configured to provide ventilation to a patient

17. An airway assembly comprising:

a first conduit comprising reinforcement to inhibit collapse of the first conduit;

an expandable member coupled to a portion of the first conduit, wherein the expandable member is configured to inhibit fluid flow past the expandable member;

a second conduit comprising a first end that extends past the expandable member, wherein the second conduit is coupled to an outer surface of the first conduit; and

a third conduit comprising a first end that terminates before the expandable member, wherein the third conduit is coupled to an outer surface of the first conduit.

18. The airway assembly of claim 17, wherein the first conduit is partially flexible.

19. The airway assembly of claim 17, wherein the reinforcement comprises one or more rings positioned in a body of the first conduit.

20. The airway assembly of claim 17, wherein the expandable member comprises an inflatable balloon.

21. The airway assembly of claim 17, wherein the expandable member comprises an inflation conduit.

22. The airway assembly of claim 17, wherein the first conduit diameter is greater than about 3 mm and less than about 22 mm.

23. The airway assembly of claim 17, wherein the first conduit diameter is greater than about 8.0 mm and less than about 17 mm.

24. The airway assembly of claim 17, wherein the second conduit diameter is greater than about 0.1 mm and less than about 3.0 mm.

25. The airway assembly of claim 17, wherein the second conduit diameter is greater than about than about 0.5 mm and less than about 2.5 mm.

26. The airway assembly of claim 17, wherein the second conduit terminates at a distance greater than about 0.01 cm and less than about 0.5 cm from a distal end of the first conduit.

27. The airway assembly of claim 17, wherein the second conduit is configured to suction bodily fluids and gases distal to the expandable member.

28. The airway assembly of claim 17, wherein the third conduit diameter is greater than about 0.1 mm and less than about 3.0 mm.

29. The airway assembly of claim 17, wherein the third conduit diameter is greater than about 0.5 mm and less than about 2.5 mm.

30. The airway assembly of claim 17, wherein the third conduit is configured to provide a lumen for ventilation.

31. The airway assembly of claim 17, further comprising a ventilator configured to couple to the third conduit.

32. The airway assembly of claim 31, wherein the ventilator comprises a jet ventilator.

33. The airway assembly of claim 17, further comprising a capnography monitor for CO₂ analysis configured to couple to the third conduit.

34. The airway assembly of claim 17, wherein the third conduit is configured to couple to a pressure monitor.

35. The airway assembly of claim 17, further comprising a biopsy needle insertable in the lumen of the first conduit.

36. The airway assembly of claim 17, further comprising an endoscope insertable in the lumen of the first conduit.

37. An airway assembly comprising:

a first conduit comprising reinforcement to inhibit collapse of the first conduit;

an expandable member coupled to a portion of the first conduit, wherein the expandable member is configured to inhibit fluid flow past the expandable member

a second conduit comprising a first end that extends past the expandable member, stops greater than about 0.01 cm and less than about 0.5 mm from the distal end of the first conduit and wherein a portion of the second conduit is coupled to an outer surface of the first conduit; and

a third conduit comprising a first end that terminates proximal the expandable member, wherein a portion of the third conduit is positioned external to a lumen of the first conduit.

38. A method for using an airway assembly comprising:

removing a first conduit, a second conduit, a third conduit and an expandable member from an airway assembly package;

coupling the second conduit, the third conduit, and the expandable member to the first conduit; and

inserting the coupled components in an air passage of a patient.

39. The method of claim 38, wherein an endoscope is inserted in a portion of the first conduit.

40. The method of claim 38, wherein a biopsy needle is inserted in a portion of the first conduit.

41. The method of claim 38, wherein the expandable member comprises an inflation conduit and a balloon cuff configured to block the air passage.

42. A method of using an airway assembly comprising:

inserting a portion of the airway assembly in an air passage;

inflating a portion of the airway assembly against the air passage;

delivering a medication to the air passage through a portion of the airway assembly; and

inserting an instrument in a portion of the airway assembly.