A supraglottic tube is provided, which despite certain softness has high compressive strength in the proximal distal direction and an adjustable radius of curvature. The supraglottic tube includes at least three lumens. A guiding lumen is located between a respiration lumen and a esophageal lumen. The lumens are separated from each other by separating walls. A guiding means, which includes a pressure element and a tractive element, is located in the guiding lumen. A tractive force can be applied to the tractive element by way of a feed connector and an adjustment unit, in which the pressure element is supported, whereby the radius of curvature of the supraglottic tube can be adjusted.