Abstract: The invention relates to a closing system for a natural or an artificial anus, comprising an inflatable balloon having an approximately toroidal structure, composed of a plane tubular section folded in on itself, the ends of which (13, 14) extend coaxially within each other and are linked to a sleeve.

Abstract: A device for tamponade of body cavities and for mechanical anchoring of a catheter, the device including a flexible tube segment (2) having an inner wall (4) and an outer wall (6) that surround an interior space (8), wherein the tube segment (2) is inflatable, and is configured without through-passing support bodies so that a displacement of tube wall material between the inner wall (4) and the outer wall (6) of the tube segment (2) is possible by inflation of the tube segment, wherein the tube segment is provided with two ends (7,9), which are fastened to a same closing element (10), configured so that a torus geometry is striven for as the inflatable tube segment (2) is inflated and the closing element (10) is a pipe nipple and the two ends (7,9) of the tube segment (2) are joined together fluid-tightly.