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US 8,801,785 B2Granted
Articulating spinal implant
AssigneeSeaSpine, Inc.
InventorsJeff Brittan, Colin M. Smith
Life of this patent
Estimating the term…
Abstract
A spinal implant and method of implanting a spinal implant that has a spacer and a plate configured to be fastened to a plurality of vertebral bodies. The plate is coupled to the spacer, with the spacer and the plate being angularly adjustable with respect to each other.
Claims20
A spinal implant comprising:
- a spacer configured for implantation within a spinal column;
- and
- a plate configured to be fastened to a plurality of vertebral bodies, the plate having a plane and being coupled to the spacer such that the plate is pivotable about an axis, the spacer and the plane of the plate being angularly adjustable with respect to each other through a continuous range of positions;
- and
- at least one hinge post extending substantially perpendicularly from the plate;
- wherein the spacer has:
- a first section through which a bore at least partially extends, and at least one recess for receiving the hinge post of the plate;
- and
- further comprising a hinge pin extending through the bore, into the recess and into the hinge post in a direction parallel to the plate, the hinge post being rotatable about the hinge pin, whereby rotation of the plate and the hinge post about the hinge pin angularly adjusts the spacer and the plate with respect to each other.
6 more elements
A spinal implant comprising:
- a plate having a generally planar body defining a first plane, with at least two hinge posts extending from the body substantially perpendicularly from the first plane;
- a spacer having a generally planar body defining a second plane, and (b) at least two recesses for respectively receiving the at least two hinge posts;
- and
- a first hinge pin, generally in the second plane, extending through a first of the at least two hinge posts in a direction parallel to the first plane, and a second hinge pin extending through a second of the two hinge posts;
- wherein the plate is pivotable about the at least one hinge pin.
2 more elements
A spinal implant comprising:
- a plate having a generally planar body defining a first plane, with at least one hinge post extending from the body substantially perpendicularly from the first plane;
- a spacer having (a) a generally planar body defining a second plane, and (b) at least one recess for receiving the at least one hinge post, the spacer comprising spacer walls that define an inner central cavity, the spacer walls having top and bottom surfaces and a first section forming one of the spacer walls, and includes notches on the top and bottom surfaces that accommodate passage of fasteners over the top and bottom surfaces at the first section;
- and
- at least one hinge pin, generally in the second plane, extending through the at least one hinge post in a direction parallel to the first plane;
- and
- wherein the plate is pivotable about the at least one hinge pin.
3 more elements
A spinal implant comprising:
- a spacer;
- and
- a plate having a first flat surface towards the spacer and a second angled surface away from the spacer, the plate being pivotably hinged to the spacer;
- wherein the plate comprises a plurality of holes such that insertion of a fastener from the second surface into a hole causes the fastener to extend angularly outwardly with respect to the spacer;
- and
- wherein the spacer comprises spacer walls that define an inner central cavity, the spacer walls having top and bottom surfaces and a first section forming one of the spacer walls, and includes notches on the top and bottom surfaces that accommodate passage of the fasteners over the top and bottom surfaces at the first section.
3 more elements
A spinal implant comprising:
- a spacer configured for implantation within a spinal column, the spacer comprising a first plane, and a slot configured to allow compression of the spacer perpendicular to the first plane;
- a plate configured (a) to be simultaneously fastened to two adjacent vertebral bodies, (b) to be fastened to each of the two adjacent vertebral bodies by at least one threaded fastener, and (c) so as to provide rotational compliance between the plate and the threaded fasteners, thereby allowing the two adjacent vertebral bodies to move with respect to each other as the spacer is compressed, the plate comprising a second plane;
- and
- at least one hinge pin coupled between the spacer and the plate, the at least one hinge pin parallel to an axis formed by the intersection of the first and second planes;
- wherein at least one of the spacer and the plate is rotatable about the at least one hinge pin.
2 more elements
Dependencies are inferred from the claim text.