Fixator for bone surgery

Abstract

Abstract A fixator for bone surgery, in particular for surgery of the spinal column, has a threaded rod (1) and a retention part (4) which has a forked head (6) to be secured between a pair of nuts (2, 3). Provided on both sides of the forked head, concentric to the intended rod position, are projections (9) which cooperate with corresponding depressions (14) in the nuts. The projections and depressions are of conical design in order to achieve a greater degree of safety against loosening of the nuts and a well-defined angular position of the retention part relative to the threaded rod, which angular position is maintained even after slight loosening of a nut. <IMAGE>

Inventors

• 👤 G. H. Dr. Slot

Bibliographic Details