06454769 is referenced by 362 patents and cites 9 patents.

A spinal plate system and method for fixation of the human spine is provided. In an embodiment, the system includes a bone plate, a bone screw and a ring. The bone screw preferably connects the bone plate to a bone, and the ring preferably fixes the bone screw into a borehole of the bone plate such that the bone screw extends from the bone plate at a selected angle. The ring is preferably capable of swiveling within the borehole to allow the bone screw to be angulated at a plurality of angles oblique to the plate. The bone screw may have a head having a tapered, threaded surface for engaging the ring. The ring preferably has threading on its inner surface for mating with the threading on the head. The inner surface of the ring may be tapered. Movement of the head through the ring preferably expands the ring against the bone plate to fix the bone screw at a selected angle relative to the bone plate.

Title
System and method for stabilizing the human spine with a bone plate
Application Number
9/89027
Publication Number
6454769 (B2)
Application Date
June 2, 1998
Publication Date
September 24, 2002
Inventor
Robert Jones
Austin
TX, US
Erik J Wagner
Austin
TX, US
Agent
Conley Rose & Tayon P C
US
Agent
Eric B Meyertons
US
Assignee
Spinal Concepts
TX, US
IPC
A61B 17/70
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