Anterior cervical plate and fixation system

摘要

The purpose of this Patent is an "Anterior cervical fastening device", the main use of which is explained in the description of this invention. Its minimum efficient structure is composed of: Four equal screws (7) that are inserted two-by-two on one and the other side of the anterior body of the operated vertebras, with their heads (16) partially or completely screwed. Two equal plates (1) joining the screwed screws (7) of the same side, provided with longitudinal grooves at their ends (2) in which the heads (16) of the screws (7) are inserted. A stiff transversal connection element (9) between the plates (1), with a longitudinal groove (13). Two screwed rods (11) that are inserted into the central orifice of the plates (1) and their projecting ends are introduced into the longitudinal groove (13) of the transversal connection (9). Six special nuts (5) that are fastened on to the four heads (16) of the screws (7) and on to the two ends of the rods (11). <IMAGE>