Endotracheal tube exchange

1. An intubation system comprising:

a base configured to be secured relative to a subject;

a guide including a depth gauge and a guide rod movably coupled to the base to allow the guide to move relative to the base; and

a securement apparatus connected to and extending away from the base and providing an opening, displaced from the base, sized to receive the guide rod for slidable movement toward and away from the base, the securement apparatus comprising:

a guide lock configured to inhibit sliding of the guide rod in the opening; and

a connector configured to be connected to a distal end of the guide rod and to detachably connect to a first endotracheal tube such that as the guide rod is moved relative to the base toward the subject, the first endotracheal tube is inserted into the subject;

wherein the guide rod is sized and shaped to have a second endotracheal tube removed from the subject and slid over the guide rod while the securement apparatus secures the first endotracheal tube in the subject.

2. The system of claim 1 , wherein the depth gauge is indicative of a position of the first endotracheal tube relative to the base.

3. The system of claim 2 , wherein the guide comprises a depth lock mechanism configured to inhibit movement of the guide past a location corresponding to the depth lock mechanism to inhibit insertion of the first endotracheal tube beyond a threshold depth in the subject.

4. The system of claim 3 , wherein the base comprises a mouthpiece having a shape approximating a shape of a face of the subject adjacent a mouth of the subject.

5. The system of claim 1 , further comprising the first endotracheal tube, wherein the first endotracheal tube is an expandable endotracheal tube configured such that at least a portion of a length of the first endotracheal tube has an expandable cross-section.

6. An intubation system comprising:

means for attaching to a subject and guiding a first endotracheal tube into a second endotracheal tube in the subject;

means for holding the first endotracheal tube in place relative to the subject while the second endotracheal tube is extracted from the subject;

means for guiding the second endotracheal tube while the second endotracheal tube is extracted from the subject;

means for indicating a depth of the first endotracheal tube in the subject; and

means for releasing the first endotracheal tube from the means for attaching to the subject and guiding the first endotracheal tube into the second endotracheal tube in the subject.

7. The system of claim 6 , further comprising means for inhibiting insertion of the first endotracheal tube beyond a desired depth in the subject.

8. A method of intubating a subject, the method comprising:

ventilating the subject via a second endotracheal tube by forcing gas through the second endotracheal tube into the subject;

connecting a guide mechanism relative to the subject by attaching a base of a securement apparatus to the subject, with a guide rod of the guide mechanism being slidably received by the securement apparatus;

attaching the guide rod to a first endotracheal tube;

inserting the first endotracheal tube into the second endotracheal tube disposed in the subject until a desired insertion depth is reached as indicated by the guide mechanism;

extracting the second endotracheal tube from the subject by sliding the second endotracheal tube over the first endotracheal tube and over the guide rod; and

ventilating the subject via the first endotracheal tube by forcing gas through the first endotracheal tube into the subject.

9. The method of claim 8 , further comprising setting the desired insertion depth on the guide mechanism before inserting the first endotracheal tube into the subject.

10. The method of claim 8 , further comprising detaching the guide mechanism from the first endotracheal tube after extracting the second endotracheal tube from the subject.

11. The method of claim 8 , further comprising expanding a cross-sectional area of the first endotracheal tube to seal the first endotracheal tube against a wall of a trachea of the subject after extracting the second endotracheal tube from the subject.

12. The method of claim 8 , wherein attaching the guide mechanism to the first endotracheal tube comprises attaching the guide mechanism to the first endotracheal tube at a connection point of the first endotracheal tube such that the connection point is fixed relative to a length of the guide mechanism.