DUAL-LUMEN TRACHEAL TUBE WITH SHAPED LUMEN DIVIDER

• US 20120024292A1
• Filed: 07/29/2010
• Published: 02/02/2012
• Est. Priority Date: 07/29/2010
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Nellcor Puritan Bennett LLC (Medtronic Plc)
• Inventors: Sandmore, Donald R., Snyder, Jonathan, Harrison, Heather, Kaus, Stanley, Behlmaier, Mark, Keene, Vida
• Granted Patent: US 8,978,657 B2
• Time in Patent Office: Days
• US Class Current: 128/207.14
• CPC Class Codes: A61M 16/0009 with sub-atmospheric pressure, e.g. during expiration
• 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 16/0431 with a cross-sectional shape other than circular
• CPC Class Codes: A61M 16/0443 Special cuff-wall materials A61M16/0481, A61M16/0422 take precedence
• CPC Class Codes: A61M 16/0459 one cuff behind another
• CPC Class Codes: A61M 16/0484 at the distal end
• CPC Class Codes: A61M 16/0486 Multi-lumen tracheal tubes
• 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 2025/0034 characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores making of catheters A61M25/0009
• CPC Class Codes: A61M 2205/32 with radio-opaque indicia
• CPC Class Codes: A61M 2205/584 having a color code

Abstract

Various embodiments of a tracheal tube having a shaped divider disposed therein for separation of a tracheal tube into multiple ventilation lumens are provided. In some embodiments, the divider divides a tracheal ventilation lumen from a bronchial ventilation lumen. In some embodiments, the shaped divider provides an irregular inner diameter that allows a relatively bulky device to be inserted into one or both lumens.

Claims

1. A tracheal tube, comprising:

a side wall;

a first ventilation lumen having a first distal end and a first proximal end;

a second ventilation lumen adjacent to the first lumen, the second lumen having a second distal end and a second proximal end; and

a divider coupled to the side wall and dividing the first lumen from the second lumen, wherein the first lumen and the second lumen have substantially equal cross-sectional areas, and wherein either the divider has non-planar side surfaces, or at least one or both of the side wall and the divider is elastically deformable to create at least one enlarged region for passage of a medical device through the enlarged region.

2. The tracheal tube of claim 1, wherein the tracheal tube is configured to be coupled to at least one of a ventilator, a bag for ventilation, inspiration valving, expiration valving, or an air supply.

3. The tracheal tube of claim 1, comprising a first cuff disposed around the first ventilation lumen and the ventilation second lumen, and a second cuff disposed around only the second ventilation lumen.

4. The tracheal tube of claim 3, wherein the first distal end is located on the tracheal tube between the first cuff and the second cuff.

5. The tracheal tube of claim 1, wherein the divider forms a portion of an exterior wall of the second lumen.

6. The tracheal tube of claim 1, wherein divider comprises a curved shape.

7. The tracheal tube of claim 1, wherein divider comprises a zigzag shape.

8. The tracheal tube of claim 1, wherein divider comprises a corrugated shape.

9. The tracheal tube of claim 1, wherein divider is flexible.

10. The tracheal tube of claim 1, wherein a largest inner cross sectional dimension of the first ventilation lumen or the second ventilation lumen configured to receive the medical device is at least 4 mm.

11. The tracheal tube of claim 1, wherein, at a portion of the first ventilation lumen not adjacent to the second ventilation lumen, the divider comprises a curved shape or semi-annular shape.

12. A tracheal tube, comprising:

a side wall;

a first ventilation lumen having a first distal end and a first proximal end;

a second ventilation lumen adjacent to the first lumen, the second ventilation lumen having a second distal end and a second proximal end; and

a divider disposed within the tracheal tube and dividing the first ventilation lumen from the second ventilation lumen, wherein the divider is more rigid than a portion of the side wall defining the first ventilation lumen and the second ventilation lumen to create at least one enlarged region when a medical device is introduced through the enlarged region.

13. The tracheal tube of claim 12, wherein divider is thicker than portions of the side wall defining the first ventilation lumen and the second ventilation lumen.

14. The tracheal tube of claim 13, wherein divider is at least twice as thick as the portions of the side wall defining the first ventilation lumen and the second ventilation lumen.

15. A tracheal tube, comprising:

a first ventilation lumen having a first distal end and a first proximal end;

a second ventilation lumen adjacent to the first ventilation lumen, the second ventilation lumen having a second distal end and a second proximal end, wherein the second distal end is not adjacent to the first distal end; and

a flexible divider disposed within the tracheal tube and dividing the first ventilation lumen from the second ventilation lumen, wherein, without a biasing force, the divider creates substantially equal cross sectional areas in the first ventilation lumen and the second ventilation lumen, and wherein the flexible divider is elastically deformable to create at least one enlarged region when a medical device is introduced through the enlarged region.

16. The tracheal tube of claim 15, wherein flexible divider comprises alternating inelastic thick portions and elastomeric thin portions.

17. The tracheal tube of claim 16, wherein the thick portions and the thin portions are formed from the same material.

18. The tracheal tube of claim 17, wherein the thick portions and the thin portions are formed from the same material as the tracheal tube.

19. The tracheal tube of claim 15, wherein the flexible divider comprises an elastomeric membrane.

20. The tracheal tube of claim 15, wherein the first ventilation lumen or the second ventilation lumen has an inner diameter less than 4 mm without a biasing force applied to the flexible divider and wherein the flexible divider is adapted to stretch to provide an inner dimension suitable for introduction of the medial device of at least 4 mm in diameter.