Neue Magnetodyn Gmbh

Geot Gesellschaft Fur Elektro-osteo-therapie G.m.b.h.

Heribert Stephan

Werner Kraus

Stephanie Kraus

Christian Kraus-Von Wesendonk

Markus Rennich

Stephanie Kraus-Geiges

Matthias Militz

Felix Liebrecht

An electrical stimulation anchor is configured to be electrically coupled to a power source, such as a transducer, that is external to the electrical stimulation anchor. The electrical stimulation anchor can include a bone anchor that is configured to be secured to a bone. The bone anchor can define a first electrode, a second electrode, and an isolating portion between the first electrode and the second electrode. The electrical stimulation anchor can further include a connection unit attached to the bone anchor. The connection unit can define a first contact member that electrically connects to the first electrode, and a second contact member electrically isolated from the first contact member. The second contact member can be electrically connected to the second electrode. The first and second contact members are configured to draw electrical current from the transducer so as to establish a voltage differential between the first and second electrodes.

Bipolar bone anchor with connection for electrostimulation

The invention relates to a hip joint prosthesis comprising a shaft-like section that can be inserted into a femur, and a proximally arranged end cap assembly which closes a hollow space of the hip joint prosthesis. According to the invention the end cap assembly carries a coil assembly that is connected to a first electrode with a first pole and to a second electrode with a second pole. The first and the second electrodes enclose surfaces of the hip joint prosthesis, and in a state in which the end cap assembly closes the hollow space of the hip joint prosthesis, the coil assembly is predominantly arranged in the hollow space.

Electric hip joint prosthesis

In a femoral head cap implant having a cup-shaped cap component and a pin fixed to its concave inner surface, a pick-up coil is arranged in the latter, each respective terminal of the same being connected to a tissue electrode. One tissue electrode comprises a cap component, the other an electrode provided insulated on the pin or on at least one part of the pin which is electrically insulated from the cap component. By inducing a low-frequency alternating current in the pick-up coil by means of an external coil, this low-frequency alternating current flows from the two tissue electrodes through the femoral head bone provided with the implant, thereby promoting the maintenance of its vitality.

Femoral head cap implant including a device for electrically stimulating tissue

The invention relates to an apparatus for stimulating a healing process comprising a coil arrangement which is coupled to a functional power generator in order to generate an electromagnetic field in an affected body region, a control unit for influencing a voltage curve generated by the functional power generator in accordance with signals transmitted to an input interface of the control unit, a sensor array for sensing a characteristic of the affected body region, transmission device which is coupled to the sensor array in order to transmit a signal characteristic of the detected characteristic of the affected body zone to the control unit.

Apparatus for stimulating a healing process

The invention relates to an implantable device to be fixed to a bone and comprising an electrically conductive base body provided with at least two through holes and at least one pair of shaft-shaped contact means, wherein each contact means passes through a through hole of the base body and penetrates a section of the bone in an implanted state, wherein the surface of each contact means comprises a first and a second electrically conductive surface section as well as an electrically insulating surface section separating the electrically conductive surface sections from each other, wherein the first electrically conductive surface section electrically contacts the base body while the second electrically conductive surface section is electrically insulated with respect to the base body, wherein each contact means contains a coil arrangement in its interior by means of which the electrically conductive surface sections of each contact means are electrically coupled, and wherein the coil arrangements of a pair are wound in opposite directions.

Implantable device, system for generating localised electromagnetic fields in the area of an implant and coil arrangement

Bone screw ( ) having a hollow, tubular shaft ( ) consisting of metal, such as titanium, the shaft having a head ( ) at one end and a self-tapping external thread ( ) at the other end. The head ( ) has a hexagonal recess ( ) for inserting a turning tool. An electrically insulated metallic end-piece ( ) which tapers in the direction of the end in the form of a cone or pointed arch, is inserted the other end of the shaft ( ). A receiving coil ( ) is located in the hollow shaft ( ), the terminals ( ) of the coil being electrically coupled to the shaft ( ) and to the end-piece ( ). The space between the end-piece ( ) and the end of the shaft ( ) as well as the interior of the shaft ( ) are filled with a biocompatible insulating compound ( ), such as an epoxy resin. A low-frequency electric voltage can be induced in the receiving coil by an external primary coil which is coupled to an oscillation generator. The electric voltage generates a growth-promoting current in the surrounding tissue, the shaft and the end-piece acting as tissue electrodes (stimulation method according to Kraus and Lechner).

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Munich, Germany

Heribert Stephan