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US 11,103,360 B2Granted
Spinal fusion cage and method of operation
OwnerRobert Woodruffinventor
Life of this patent
Estimating the term…
Abstract
A spinal fusion cage, having a C-shaped posterior body with a plurality of insertable shims passing therethrough and into a vertebral body above or below the C-shaped posterior body; an anterior plate that is attachable to the opposite ends of the C-shaped posterior body; and a plurality of screws passing through the anterior plate and extending into a vertebral body above or below the anterior plate.
Claims11
A spinal fusion cage, comprising:
- a C-shaped posterior body having opposite lateral ends and an open center region;
- a plurality of shim tracts passing through the C-shaped posterior body;
- a plurality of shims, each shim passing through one of the shim tracts and extending out from the C-shaped posterior body and configured for insertion into a vertebral body above or below the C-shaped posterior body;
- an anterior plate, the anterior plate being attachable to the opposite ends of the C-shaped posterior body;
- a plurality of screws passing through the anterior plate and configured for extension into a vertebral body above or below the anterior plate;
- and an inserter to guide the C-shaped posterior body into position within a disc space, wherein the inserter has holes that align with the shim tracts in the C-shaped posterior body.
3 more elements
A method of positioning a spinal cage in an intervertebral space, comprising:
- placing a C-shaped posterior body onto a distal end of an inserter;
- positioning the C-shaped posterior body in the intervertebral space with the inserter;
- extending a plurality of shims through the inserter and through tracts in the C-shaped posterior body and into a vertebral body above or below the C-shaped posterior body, wherein the inserter has holes that align with the shim tracts in the C-shaped posterior body;
- placing bone graft material into an open center region of the C-shaped posterior body;
- attaching an anterior plate onto opposite ends of the C-shaped posterior body;
- and
- extending a plurality of screws through the anterior plate and into the vertebral body above or below the anterior plate.
4 more elements
A spinal fusion cage, comprising:
- a spinal fusion body;
- a plurality of shim tracts passing through a posterior portion of the spinal fusion body;
- a plurality of shims, each shim passing through one of the shim tracts and extending out from the posterior portion of the spinal fusion body and configured for insertion into a vertebral body above or below the posterior portion of the spinal fusion body, thereby being configured to affix the posterior portion of the spinal fusion body into the vertebral body;
- a plurality of screws passing through an anterior portion of the spinal fusion cage and configured for extension into a vertebral body above or below the anterior portion of the spinal fusion body, thereby being configured to affix the anterior portion of the spinal fusion body into the vertebral body;
- and an inserter to guide the C-shaped posterior body into position within a disc space, wherein the inserter has holes that align with the shim tracts in the posterior portion of the spinal fusion body.
2 more elements
Dependencies are inferred from the claim text.