Abstract: A tracheal tube by which the trachea is closed watertight by a fixation cuff blocking the trachea below the glottis, through which a ventilation cannula passes, and, situated cranially to it, above the cuff, a tampon-bladder made of flexible material expansible through the influx of fluid, which when filled differs in shape from the shape of the cuff, would represent an improvement by means of which a patient could be intubated in the gentlest way over a long period with minimal risk of infection. In the invention this is accomplished by situating the tampon-bladder immediately against the cuff and constructing it of foil-like material and so designing it that when fully distended in size it fills the subglottal space.