The invention is concerned with an apparatus for preventing incontinence with a fixing device to be immovably implanted in body tissue, whereby a tubular body (3) features a first elongated guiding element (5 105) inside, a tube-like retaining element is connected to the tubular body (3) which features a second longitudinal guiding element (13) inside which continues in an axial direction and terminates on its opposing side to the tubular body (3) in a finish. The first elongated guiding element (5 105) features the fixing device, whereby it defines areas with projections (7) being axially displaced relative to each other, whereby the projections in a non-extended state are formed as slits (23) which protrude out of the surface of the first guiding element (5 105) and are positioned through the formation of the finished projections when the first guiding element (5 105) is compressed in an axial direction.