Final answer:
The lighted stylet used for transillumination of the neck during endotracheal intubation is called a Trachlite stylet. It uses a light source to identify the correct anatomical structures for the safe placement of an endotracheal tube.
Step-by-step explanation:
The stylet that uses transillumination of the neck to accomplish endotracheal intubation is called a Trachlite stylet. This device facilitates the need to establish an airway by guiding an endotracheal tube into the trachea. Using this device's light source, as it enters the glottis opening, produces a well-defined, circumscribed glow, which is easily visible on the anterior neck, particularly below the thyroid prominence. Transillumination is a helpful method that aids in identifying the correct anatomical structures when visibility is reduced, thereby increasing the safety and success rate of the intubation procedure.