Friedrichsfeld Gmbh. Steinzeug-Und Kunststoffwerke

Friedrichsfeld Gmbh

Peter Griss

Gunther Heimke

Paul Wachter

Herbert Heil

Hanns Von Andrian-Werburg

Hanns Von Andrian Werburg

The thigh portion of an endoprosthesis for hip joints is provided with stepped projecting surfaces to distribute forces in the bone tissue.

Hip endoprosthesis with stepped load-transferring surfaces

A rotary cutter for making the socket bed for a complete endoprosthesis is slidable on a guide rod, which rod is first inserted into a guide bore which has previously been made in the hip bone. The relative axial position of the cutter with respect to the rod indicates the depth of penetration of the cutter.

Tool for forming a bed in a hip bone to receive an artificial acetabulum

A socket for hip joint prosthesis is secured to a cavity in the bone tissue by a series of radially arranged pegs which can be projected outwardly from the wall of the socket into the surrounding tissue by a central screw member which also has a self-tapping thread which also enters the tissue.

Growing community of inventors

Plankstadt, Germany

Peter Griss