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US 8,728,127 B2Granted
Bone plate incorporating a compression mechanism and associated surgical methods
AssigneeSpineWorks, LLC
InventorGeoffrey Stewart
Life of this patent
Estimating the term…
Abstract
The present invention provides a bone plate that includes a sliding mechanism that allows for both static and dynamic loading and the associated stabilization or partial or whole immobilization of two or more adjacent bone fragments or vertebral bodies of the spine. This sliding mechanism is designed such that as bone resorbs or the like, the sliding mechanism maintains axial compression in a collinear manner across the bone segments.
Claims18
A bone plate incorporating a compression mechanism, comprising:
- a plate structure defining a plurality of screw receiving plate holes and a plurality of screw receiving plate slots;
- and
- a carriage assembly defining a plurality of screw receiving carriage holes and engaging the plurality of screw receiving plate slots, wherein the carriage assembly translates axially with respect to the plate structure via the plurality of screw receiving plate slots, thereby providing the compression mechanism;
- wherein the carriage assembly translates axially with respect to the plate structure, thereby changing the relative position of the plurality of screw receiving plate holes associated with the plate structure and the plurality of screw receiving carriage holes associated with the carriage assembly, without changing the axial length of the plate structure or the bone plate;
- and
- wherein the carriage assembly comprises a plurality of screw receiving carriage assembly stems and an elongate bridge member that joins the plurality of screw receiving carriage assembly stems, and wherein the elongate bridge member translates axially with respect to the plate structure within a recess manufactured into the plate structure.
3 more elements
A bone plate incorporating a compression mechanism, comprising:
- a plate structure defining a plurality of screw receiving plate holes and a plurality of screw receiving plate slots;
- and
- a carriage assembly defining a plurality of screw receiving carriage holes and engaging the plurality of screw receiving plate slots, wherein the carriage assembly translates axially with respect to the plate structure via the plurality of screw receiving plate slots, thereby providing the compression mechanism;
- wherein the plate structure receives a plurality of screws;
- wherein the carriage assembly receives a plurality of screws;
- wherein the engagement of the plate structure and the carriage assembly provides dynamic compression between the plate structure and the carriage assembly;
- wherein the carriage assembly translates axially with respect to the plate structure, thereby changing the relative position of the plurality of screw receiving plate holes associated with the plate structure and the plurality of screw receiving carriage holes associated with the carriage assembly, without changing the axial length of the plate structure or the bone plate;
- and
- wherein the carriage assembly comprises a plurality of screw receiving carriage assembly stems and an elongate bridge member that joins the plurality of screw receiving carriage assembly stems, and wherein the elongate bridge member translates axially with respect to the plate structure within a recess manufactured into the plate structure.
6 more elements
A bone plate incorporating a compression mechanism, comprising:
- a plate structure defining a plurality of screw receiving plate holes and a plurality of screw receiving plate slots;
- and
- a carriage assembly defining a plurality of screw receiving carriage holes and engaging the plurality of screw receiving plate slots, wherein the carriage assembly translates axially with respect to the plate structure via the plurality of screw receiving plate slots, thereby providing the compression mechanism;
- wherein the plate structure receives a plurality of screws;
- wherein the carriage assembly receives a plurality of screws;
- wherein the carriage assembly is selectively secured to the plate structure;
- wherein the carriage assembly translates axially with respect to the plate structure, thereby changing the relative position of the plurality of screw receiving plate holes associated with the plate structure and the plurality of screw receiving carriage holes associated with the carriage assembly, without changing the axial length of the plate structure or the bone plate;
- and
- wherein the carriage assembly comprises a plurality of screw receiving carriage assembly stems and an elongate bridge member that joins the plurality of screw receiving carriage assembly stems, and wherein the elongate bridge member translates axially with respect to the plate structure within a recess manufactured into the plate structure.
6 more elements
Dependencies are inferred from the claim text.