Sepitec Foundation

Fritz Magerl

Roger Roland Tognini

Erich Wintermantel

Clemens Dransfeld

Walter Spirig

Thomas Andreas Peter

Jörg Mayer

J&ouml;rg Mayer

A composite of polymer or ceramic material has reinforcing fibers. The composite is for use in manufacturing medical implants like osteosynthesis plates, endoprostheses, screw coupling elements, surgical instruments, and similar components. The fibers and fibrous parts are made from a material that absorbs X-rays so that it can be seen during X-ray examination.

Composite of polymer or ceramic materials and component made of such a composite

An osteosynthesis screw ( ) used especially for application by a translaminar vertebral screw, comprises a shaft ( ) at least partially provided with a thread ( ) and a head ( ) formed at one of its ends and having a notch ( ) for a tool. Said shaft ( ) has a section (A) with a thread ( ) on the end section oriented towards the head ( ). The remaining section (B) of the shaft ( ) up to the free end is produced without a thread. The head ( ) has a diameter (D ) corresponding at least approximately to the outer diameter (DA) of the thread ( ) and is provided with the inner notch ( ) for a tool. The section (A) of the shaft ( ) with the thread ( ) has a configuration of uniform thickness, e.g. a trilobular configuration. Thus, the invention provides an osteosynthesis screw ( ) exhibiting a short section (A) with a thread ( ) and a long section (B) without a thread, said screw having a pull-out head ( ) which is secured both axially and rotationally.

Osteosynthesis screw, especially for application by a translaminar vertebral screw

An implant for osteosyntheses including a plate with a plurality of holes following in succession in the longitudinal direction whereby at least most of the holes intended to receive the screws are offset in alternation generally away from a center plane whereby a center axis of each of the holes forms an acute angle with the center plane of the plate.

Implant for osteosyntheses

Growing community of inventors

St. Gallen, Switzerland

Fritz Magerl