Abstract: An anti-infection device is provided for endoexo implants (1) characterized by a tubular protective membrane (2) which is constructed such that it can be moved out of the sterile region inside the body into the unsterile region outside the body and in this way a wall movement from the inside to the outside, which prevents the penetration of microbes in the opposite direction, can be generated at the point (6) of passage through the skin.

Abstract: An apparatus and method for generation of a protective sleeve against infections for a percutaneous lead through human or animal skin. The percutaneous lead (1) includes an extrusion port (7). When the lead extends through a body (3) of a patient, a pump (9) in operative connection with the lead is operative to move biocompatible liquid polymer material from a reservoir (10) through the extrusion port. As the polymer material comes in contact with body tissues of the patient it forms a protective sleeve against infections (5). The protective sleeve must be periodically clipped as it continuously or intermittently grows in an upward direction (6) outside of the body. The continual formation of the protective sleeve prevents the formation of a biofilm on the percutaneous lead that can cause the body tissue to separate from the percutaneous lead.

Abstract: The invention relates to a mechanical heart valve for artificial blood pumps and conduits. An occluder is located in a flow channel with an S-shaped center line and with a cross sectional area which decreases in the flow direction. The occluder is made in the form of a rotational body which can be turned around a pivot or virtual axis, which is located outside the center of gravity of the rotational body.

Abstract: An apparatus for converting electric energy into pumping energy is disclosed. The apparatus is utilized to drive a cardiac assist device or an artificial heart. These devices are volume displacement blood pumps which require an alternating force or pressure for their pumping action. To generate this alternating pressure, a centrifugal pump driven by an electric motor pumps a hydraulic fluid which acts on the diaphragm of a blood pump. The alternating flow of the hydraulic transmitting fluid is generated by an axial shift of the impeller of the centrifugal pump.

Abstract: A safety drive for an artificial heart, if the right drive should fail it is simply put out of operation, while if the left drive fails, the right drive, which is still functioning, is switched over to the left circulatory pump and thus serves as a system-internal backup drive.