An oesophageal tube provided with a foam-rubber cuff is described. The outside diameter of the cuff can be diminished while the tube is being introduced. After implantation, the expanded foam-rubber cuff achieves additional sealing of the oesophago-bronchial fistula. The tube described is suitable for sealing off oesophago-bronchial fistulae in the absence of the tumour-induced stenosis of the oesophagus.