Dual lumen endobronchial tube device
The present invention provides improved dual lumen endobronchial tube devices. The dual lumen endobronchial tube devices feature a universal design for left or right mainstem bronchus insertion. The dual lumen endobronchial tube devices also feature enhanced balloon cuff designs to minimize dislodgement while maintaining proper airway sealing. The present invention also includes water activated lubricious coating inside the shaft to reduce friction during insertion of a bronchoscope into the airway. The present invention also provides improved double clamps that prevent the accidental clamping of both tubes of a Y-adapter.
1. A universal dual lumen endobronchial device, comprising:
a straight shaft having a proximal end and a distal end;
a curved bronchial tube extending from the distal end of the straight shaft;
a tracheal lumen within the shaft extending from the proximal end of the shaft to a tracheal lumen opening at the distal end of the shaft;
a bronchial lumen within the shaft extending from the proximal end of the shaft to a bronchial lumen opening at a distal end of the bronchial tube;
a tracheal balloon cuff proximally adjacent to the tracheal lumen opening; and
a bronchial balloon cuff proximally adjacent to the bronchial lumen opening, the bronchial balloon cuff having a trapezoidal side profile with a long side and a short side substantially in parallel and a beveled side, such that the long side faces a medial direction toward the tracheal lumen opening, the short side faces a lateral direction opposite from the tracheal lumen opening, and the beveled side faces a lateral direction away from the tracheal lumen opening and is flush with the bronchial lumen opening;
wherein the straight shaft and the curved bronchial tube are constructed from a polymer having a Shore A hardness between 60 and 95.
2. The device of claim 1 , wherein the proximal end of the straight shaft comprises a Y-connector fluidly connected to the tracheal lumen and the bronchial lumen.
3. The device of claim 1 , wherein the straight shaft further comprises one or more inflation lumens fluidly connected to the tracheal balloon cuff, the bronchial balloon cuff, or both.
4. The device of claim 1 , wherein the tracheal lumen and the bronchial lumen are separated by a flexible semilunar membrane, such that the cross-sectional area of the tracheal lumen and the bronchial lumen are substantially equal.
5. The device of claim 4 , wherein the semilunar membrane has a convex side adjacent to the tracheal lumen and a concave side adjacent to the bronchial lumen.
6. The device of claim 4 , wherein the semilunar membrane has a convex side adjacent to the bronchial lumen and a concave side adjacent to the tracheal lumen.
7. The device of claim 4 , wherein the semilunar membrane has a thickness between 0.45 and 0.55 mm.
8. The device of claim 1 , wherein the tracheal lumen and the bronchial lumen are enclosed by a shaft wall having a thickness between 1 and 2 mm.
9. The device of claim 1 , wherein the tracheal balloon cuff and the bronchial balloon cuff comprise one or more raised ridges.
10. The device of claim 1 , wherein the tracheal balloon cuff has a cylindrical shape.
11. The device of claim 1 , wherein the tracheal lumen and the bronchial lumen comprise a lubricant layer.
12. The device of claim 11 , wherein the lubricant layer is water activated.
13. The device of claim 11 , wherein the lubricant layer comprises polyvinylpyrrolidine (PVP).
14. The device of claim 1 , wherein the exterior of the straight shaft and the curved bronchial tube comprise a lubricant layer.
15. The device of claim 1 , further comprising at least one pressure sensor.
16. The device of claim 1 , further comprising at least one flow sensor.
17. The device of claim 1 , further comprising at least one temperature sensor.
18. The device of claim 1 , further comprising at least one CO 2 sensor.