Loading patent…
AssigneeSDGI Holdings, Inc.
InventorsRemi Cavagna, Denis Huten, Hugues Malandain, Jose Gournay
Estimating the term…
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.
A bolt for connecting a vertebra to a longitudinal member, comprising:
An apparatus to support the spine, comprising:
A bolt for connecting a vertebra to a longitudinal member, comprising:
An apparatus to support the spine, comprising at least one support rod and at least two pedicle screws, each of said pedicle screws having a head disposed at a first end portion and male threads disposed at a second end portion, said head portion having a channel therein that is adapted to receive the support rod, said male threads having an outside diameter and a core with a core diameter, said screws further characterised in that the core diameter remains substantially constant between said screws, while the external diameter of the threads increases from one screw to the other.
Dependencies are inferred from the claim text.