Spinal osteosynthesis system for anterior fixation
AssigneeStryker Spine
InventorsRichard Assaker, Frederic Conchy, Regis Le Couedic
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Abstract
The invention concerns a backbone osteosynthesis system comprising an elongated element , a vertebral screw, and a connecting element comprising two branches for clamping between them the linking element, at least one first branch being capable of being engaged onto the screw. The system comprises a second vertebral screw, the first branch having an extension capable of being engaged onto the second screw. The system may comprise a second elongated linking element.
Claims33
A spinal osteosynthesis system, in particular for anterior fixation, comprising a first and second elongate connection rods, a first vertebral screw, and a connector including two branches which are able to clamp the first and second connection rods between them, at least one of the branches being able to be engaged on the first vertebral screw, said vertebral screw located between said first and elongate connection rods.
A connector for a spinal osteosynthesis system comprising first and second branches which can clamp a first elongate connection rod between said branches adjacent a first end of said first branch and a second elongate connection rod at a second end of said first branch, at least the first branch having a first opening which can be engaged on a first vertebral screw, the first branch has an extension having a second opening which can be engaged on a second vertebral screw, the first vertebral screw located on said connector intermediate said first and second rods when mounted thereon.
A spinal system comprising:
- first and second elongate connecting rods;
- a first vertebral screw for insertion into a vertebra;
- a connector for connecting said first and second rods and said first screw, said connector having a first branch for location adjacent the vertebra and a second branch, said branches having facing surfaces adjacent a first end of said first branch for engaging said first rod and having facing surfaces adjacent a second end of said first branch for engaging said second rod;
- a clamping element acting on said first and second branches to clamp said first and second rods therebetween;
- and
- said first vertebral screw engaging said first branch at a point thereon intermediate said first and second rods.
A method for connecting a spinal rod to a vertebra comprising:
- inserting a first vertebral screw into the vertebra, said screw having a head;
- positioning a vertebral facing surface surrounding a first orifice in a first branch of a connector having first and second branches on the head of said first screw, said branches encompassing first and second rod receiving portions located in opposite sides of said first vertebral screw;
- inserting first and second rods into said first and second rod receiving portions;
- inserting a clamping element through an orifice in said second branch and into clamping engagement with the head of said first vertebral screw;
- and
- clamping said first and second branches together with said rods therebetween by the engagement of said clamping element and said first screw head.
Dependencies are inferred from the claim text.