Abstract: The bladder consists of two chambers of self-restoring elastic material. A check valve is provided between both chambers that is biased in the flow direction and allows liquid to pass only when the differential pressure exceeds a certain limit value. The liquid from the kidney first reaches the first chamber, and after a certain amount of liquid has accumulated there, the liquid flows through the valve into the second chamber. The chambers are arranged in an eight-shaped configuration. The bladder has a flat design and allows for an advantageous anatomic adaptation to the implantation area between ribs and ala of the ilium. Further, a suction pressure is obtained that is relatively uniform in regard of the filling level.

Abstract: The implant holder comprises a screen (21) comprising on one side a tissue-compatible fibre material (25) to which the body cells grow and on the other side a smooth contact surface (23) for the implant (10). A holding fixture (26) retains the implant (10) to the screen (21). The implant holder prevents the body tissue from directly growing to the implant, which would make exchange of the implant (10) more difficult. To exchange the implant the skin (16) of the patient is cut open and the holding fixture (26) is opened. The implant holder remains in the body while the implant (10) is exchanged.

Abstract: The implant holder comprises a screen (21) comprising on one side a tissue-compatible fiber material (25) to which the body cells grow and on the other side a smooth contact surface (23) for the implant (10). A holding fixture (26) retains the implant (10) to the screen (21). The implant holder prevents the body tissue from directly growing to the implant, which would make exchange of the implant (10) more difficult. To exchange the implant the skin (16) of the patient is cut open and the holding fixture (26) is opened. The implant holder remains in the body while the implant (10) is exchanged.

Abstract: The check valve comprises an inlet duct (31) , an outlet duct (32) and a valve chamber (34) arranged between them. The valve chamber (34) is permanently connected with the inlet duct (31) via openings (35). On a blind duct (33) a valve member (36) is mounted which is made up of a flexible inherently stable hose. The valve member (36) extends into the outlet duct (32) and contacts the inner surface of the outlet duct. At a pressure exceeding the opening pressure of the valve the valve member (36) is lifted off the inner surface of the outlet duct (32).