Device supporting a tracheal tube, preferably applied to a blade (104) of a laryngoscope, or an Airtraq® videolaryngoscope (100), or a LMA® videolaryngoscope, or other similar instruments, particularly suitable as a support to procedure of patients tracheal intubation, and wherein it comprises:- one or more planar elements (151), (152), each of them having a profile that is perfectly adapted to the curvature of said blade (104) in which it is placed, and from which it can protrude out, on command, through a longitudinal groove, in order to achieve one or more fixed transversal walls, that are continuous or in patches a tracheal tube (108) that goes with its far end (110) across said one or more transversal walls, and that can be curved and addressed towards trachea of a patient- a set of mechanical gears that: according to a back position of a sliding button (153), keep said one or more planar elements (151), (152), placed inside the above blade (104) and that according to a front position of the same sliding button (153), push outside and distally the above said one or more planar elements (151), (152), in order to achieve said one or more fixed transversal walls.
