For a device of the plate vertebrates l5 and s1, osteosynthesis device including such a plate, and the instrument for the placing of such a plate

摘要

The invention relates to a plate (7) for osteosynthesis device of the vertebrae l5 and s1. It has a triangular shape. It comprises, in the vicinity of its top angle an orifice (8) intended to be traversed by a screw (11) for fixing the plate (7) to l5 and two orifices (9, 10) in the vicinity of its lower corners intended to be traversed by screws (12, 13) for fixing the plate (7) on s1. It preferably comprises on its rear face (23), a protuberance (24) extending over at least a portion of the width of the plate (7) and coming to bear against the lower lip of the front edge (14) of the lower plate of l5.elle preferably comprises on its rear face (23) in the vicinity of its lower corners of the protuberances (26, 27) intended to come to bear against the lower edge of the projecting part (15) of s1. The present invention also relates to an osteosynthesis device including the plate and a suitable instrument with its emplacement.