Arthrex, Gmbh

Marcus Hientzsch

Gerlinde Michel

Markus Scheibel

Georg Gradl

An exemplary bone screw includes a proximal section including a first outer thread, a center section including a second outer thread, an unthreaded distal section on an opposite side of the center section from the proximal section, a channel extending from the proximal section to a distal opening of the unthreaded distal section, and at least one side opening extending from the channel to an outer surface of the unthreaded distal section. In some embodiments, the at least one side opening includes a cutting edge configured to cut a material as the bone screw is rotated in a direction for removing the bone screw. In other embodiments, the side opening is formed in at least one of the center section and the unthreaded distal section and includes a diameter that increases in a direction from the channel toward an outer surface of the center section or the unthread distal section. The exemplary bone screws may be used to treat bone fractures with or without a bone plate.

Cannulated bone screw

A bone fixation device according to an exemplary aspect of the present disclosure includes a nail extending along a longitudinal axis. The nail is provided with a transverse bore arranged along a transverse axis that intersects the longitudinal axis. The bone fixation device further includes a screw assembly received in the transverse bore, and a locking device. The locking device is configured to clasp the screw assembly to lock the screw assembly against movement along the transverse axis and against rotation about the transverse axis.

Growing community of inventors

Dachau, Germany

Marcus Hientzsch