Implantable oesophagus prosthesis

Implantable oesophageal prosthesis (1) comprising a feeding tube (3), which feeding tube is at least partially surrounded by a housing (2) in which a pressurising member (4,5) is applied, which pressurising member comprises a pressure application element (4) provided for generating a peristaltic pressure against an outer wall of the feeding tube, characterised in that the pressurising member is applied in such a manner as to be movable along the feeding tube over a predetermined distance starting from an initial position (8), which pressure application element (4) is provided for generating the peristaltic pressure continuously during its movement along the feeding tube in a first direction (l1) extending towards the stomach of a body in which the prosthesis is to be implanted, said pressurising member comprises a return member (5) provided for applying a return force extending in a second direction (l2), opposite to the first direction, in order to return the pressure application element towards its initial position.