PEDICLE SCREWS WITH INCLINED CHANNELS TO HOLD SUPPORT RODS

This invention is a pedicle screw ( 1 ), comprising a threaded rod ( 2 ) having a longitudinal axis (XX) and a head ( 4 ) in which there is a channel ( 5 ) adapted to receive a spinal support rod, and a means for blocking the rod; the channel is formed such that its longitudinal axial plane (P) is inclined relative to the longitudinal axis (XX) of the threaded rod. The head ( 4 ) of the screw being made up of two flanks ( 6, 7 ), a threaded hole ( 11 ) is formed in one of them; the inclination of the channel ( 5 ) relative to the axis of the treaded rod ( 2 ) makes it possible to place a tool for blocking the rod in the channel without this tool coming into contact with the muscle tissues delimiting the incision. Moreover, the threaded seat ( 11 ) permits the positioning of instruments without obstructing the channel for passage of the rod.