Laryngeal mask with esophageal blocker and bite block

• US 7,900,632 B2
• Filed: 08/18/2006
• Issued: 03/08/2011
• Est. Priority Date: 08/18/2006
• Status: Active Grant

• Current Assignee: Salter Labs, LLC
• Original Assignee: Cookgas, LLC
• Inventors: Cook, Daniel J.
• Primary Examiner(s): DEMILLE, DANTON D
• Application Number:
  US11/465,713
• Publication Number:
  US 20080041392A1
• Time in Patent Office: 1,663 Days
• Field of Search: 128/200.24, 128/107.14, 128/207.15, 604/96.01, 604/101.01, 606/196
• US Class Current: 128/207.14
• CPC Class Codes: A61M 16/04 Tracheal tubes catheters in general A61M25/00
• CPC Class Codes: A61M 16/0409 with mean for closing the oesophagus
• CPC Class Codes: A61M 16/0415 with access means to the stomach
• CPC Class Codes: A61M 16/0488 Mouthpieces; Means for guiding, securing or introducing the tubes guiding or introducing with laryngoscopes A61B1/267; holding devices on the body A61M25/02
• CPC Class Codes: A61M 16/0493 with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block

Abstract

A supraglottic airway of the type used to facilitate lung ventilation and the insertion of endo-tracheal tubes or related medical instruments through a patient'"'"'s laryngeal opening including a guide structure for use in deploying an esophageal blocker into the patient'"'"'s esophagus and additionally or alternatively including a bite block for inhibiting a patient from biting an internal passageway in the respiratory tube of the airway closed.

Claims

1. A supraglottic airway and esophageal blocker in combination comprising;

an esophageal blocker;

a supraglottic airway including;

a respiratory tube;

a shield comprising a means for creating an airtight seal in the oropharyngeal region of a patient; and

a guide structure external to said respiratory tube and said means;

said guide structure being capable of guiding said esophageal blocker into an esophagus of said patient;

said guide structure is not directly connected to said shield;

wherein, while said supraglottic airway is inserted in said patient, said esophageal blocker can move relative to said supraglottic airway and can be extended through said guide structure to then extend past a distal end of said supraglottic airway into said esophagus of said patient.

2. The combination of claim 1 wherein said esophageal blocker is transported by said guide structure as said airway is placed in said patient.

3. The combination of claim 1 wherein said guide structure comprises a secondary tube.

4. The combination of claim 3 wherein said secondary tube is slotted.

5. The combination of claim 1 wherein said respiratory tube is smoothly curved.

6. The combination of claim 1 wherein said guide structure is mounted to said respiratory tube.

7. The combination of claim 1 wherein said airway further includes a clip for holding said esophageal blocker in position relative said airway.

8. The combination of claim 1 wherein said esophageal blocker includes an inflating and positioning tube and a balloon.

9. The combination of claim 8 wherein said inflating and positioning tube includes markings to identify the location of said balloon relative said airway.

10. The combination of claim 1 further comprising:

a bite block formed onto said respiratory tube;

wherein said bite block is sized and shaped to contact at least a portion of the teeth of a patient, when said airway is in said patient, if said patient attempts to bite down on said respiratory tube.

11. A laryngeal mask and esophageal blocker in combination comprising;

an esophageal blocker;

a laryngeal mask including;

a respiratory tube;

a shield comprising an inflatable outer ring having a central hole attached to a posterior base, said central hole being in fluid communication with an interior of said respiratory tube; and

a guide structure external to said respiratory tube and said inflatable outer ring;

said guide structure being capable of guiding said esophageal blocker into an esophagus of a patient;

said guide structure is not directly connected to said shield;

wherein, after said laryngeal mask is inserted in said patient, said esophageal blocker can move relative to said mask and can be extended through said guide structure to then extend past a distal end of said shield into said esophagus of said patient.

12. The combination of claim 11 wherein said esophageal blocker is transported by said guide structure as said laryngeal mask is placed in said patient.

13. The combination of claim 11 wherein said guide structure comprises a secondary tube.

14. The combination of claim 13 wherein said secondary tube is slotted.

15. The combination of claim 13 wherein said secondary tube directs a distal end of said esophageal blocker along said shield when said esophageal blocker is extended into said esophagus of said patient.

16. The combination of claim 15 wherein said distal end of said esophageal blocker passes along a line of connection formed by the intersection of said posterior base and said outer ring.

17. The combination of claim 16 wherein said distal end of said esophageal blocker passes between said shield and said patient'"'"'s oropharynx.

18. The combination of claim 17 wherein said distal end passes between said inflatable outer ring and said oropharynx at said distal end of said shield.

19. The combination of claim 13 wherein said respiratory tube is smoothly curved.

20. The combination of claim 19 wherein said secondary tube twists at least partially around said respiratory tube.

21. The combination of claim 11 wherein said guide structure is mounted to said respiratory tube.

22. The combination of claim 11 wherein said guide structure is mounted to said shield.

23. The combination of claim 11 wherein said mask further includes a clip for holding said esophageal blocker in position relative said laryngeal mask.

24. The combination of claim 11 wherein said esophageal blocker includes an inflating and positioning tube and a balloon.

25. The combination of claim 24 wherein said inflating and positioning tube includes markings to identify the location of said balloon relative said mask.

26. The combination of claim 11 further comprising:

a bite block formed onto said respiratory tube;

wherein said bite block is sized and shaped to contact at least a portion of the teeth of a patient, when said laryngeal mask is in said patient, if said patient attempts to bite down on said respiratory tube.

27. A laryngeal mask including an esophageal blocker, the mask comprising;

a respiratory tube;

a shield comprising an inflatable outer ring having a central hole attached to a posterior base, said central hole being in fluid communication with an interior of said respiratory tube;

esophageal blocking means for temporarily blocking off a patient'"'"'s esophagus;

a guide means mounted externally to said respiratory tube for guiding said esophageal blocking means into said esophagus below a distal end of said shield;

said guide structure is not directly connected to said shield;

wherein said esophageal blocking means is movable relative to said respiratory tube, said shield and said guide means.

28. The mask of claim 27 wherein said esophageal blocking means is transported by said guide means as said laryngeal mask is placed in said patient.

29. A method for blocking a patient'"'"'s esophagus while providing said patient with an artificial airway, the method comprising the steps of:

providing a supraglottic airway having a shield capable of creating an airtight seal in the oropharyngeal region of a patient;

providing an esophageal blocker;

placing said supraglottic airway in a patient in the oropharyngeal region of said patient to provide the patient with an artificial airway;

after said placing, moving said esophageal blocker relative to said supraglottic airway in such a manner that a portion of said esophageal blocker is guided by a guide structure external the respiratory tube of said supraglottic airway past said supraglottic airway and into the esophagus of said patient; and

after said moving, deploying said esophageal blocker in said esophagus to block said patient'"'"'s esophagus.