Disclosed is a shunt valve for insertion in a surgically produced junction canal between the trachea and the esophagus. Said valve has a tube-like section (1) with an open lumen (11) to be turned towards the trachea and a lumen which is to be turned towards the esophagus and which can be closed by a flap valve (2) functioning on one side. The flap (3) of said valve is spring loaded in such a way that the flap valve (2) remains in closed position during insufficient counterforce and allows a flow of air from the trachea to the esophagus during inhalation and opening of the flap (3). The tubular section (1) is provided with a physiologically compatible plastic sleeve (4). The pivoting area (7) of the flap (3) of the flap valve (2) is completely covered by a roof-like protuberance (10) of the plastic sleeve. An elastic force acting upon the flap (3) is produced by a pull-back spring (5) formed in the roof-like covering area of the plastic sleeve (4) and coming into direct contact with the flap (3) on one of its ends (11), thereby forcing the flap into closed position.
