Method and apparatus for spine joint replacement
First Claim
Patent Images
1. A spinal joint kit for replacement of a portion of a mammalian spine comprising a spinal motion segment comprising an intervertebral disc between two consecutive vertebrae, the kit comprising:
- an artificial disc adapted to be incorporated into the spinal motion segment, the artificial disc comprising opposing end plates, wherein the end plates are movable relative to each other; and
a prosthesis, wherein the prosthesis is discrete from the artificial disc and is adapted to be incorporated into the spinal motion segment, the prosthesis comprising an articular surface that replicates a natural articular surface of a vertebral facet;
wherein, when the artificial disc and the prosthesis are operatively connected to the spinal motion segment, the artificial disc restores articulation between vertebral bodies of the vertebrae, the prosthesis articulates with another facet, no portion of the prosthesis contacts a posterior arch of the vertebrae, and the artificial disc and the prosthesis cooperate to restore natural biomechanics of the spinal motion segment.
4 Assignments
0 Petitions
Accused Products
Abstract
A prosthesis for the replacement of the cartilaginous structures of a spine motion segment is described. The prosthesis comprises an intervertebral disc prosthesis in combination with a facet joint prosthesis.
395 Citations
15 Claims
-
1. A spinal joint kit for replacement of a portion of a mammalian spine comprising a spinal motion segment comprising an intervertebral disc between two consecutive vertebrae, the kit comprising:
-
an artificial disc adapted to be incorporated into the spinal motion segment, the artificial disc comprising opposing end plates, wherein the end plates are movable relative to each other; and a prosthesis, wherein the prosthesis is discrete from the artificial disc and is adapted to be incorporated into the spinal motion segment, the prosthesis comprising an articular surface that replicates a natural articular surface of a vertebral facet; wherein, when the artificial disc and the prosthesis are operatively connected to the spinal motion segment, the artificial disc restores articulation between vertebral bodies of the vertebrae, the prosthesis articulates with another facet, no portion of the prosthesis contacts a posterior arch of the vertebrae, and the artificial disc and the prosthesis cooperate to restore natural biomechanics of the spinal motion segment. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A spinal joint kit for replacement of a portion of a mammalian spine comprising a spinal motion segment comprising an intervertebral disc between two consecutive vertebrae, the kit comprising:
-
an artificial disc adapted to be incorporated into the spinal motion segment, the artificial disc comprising opposing end plates, wherein the end plates are movable relative to each other; a first prosthesis, wherein the first prosthesis is configured to replace at least one superior facet of an inferior one of the vertebrae and is adapted to be incorporated into the spinal motion segment, the first prosthesis comprising a first articular surface that replicates a natural articular surface of a superior facet; and a second prosthesis, wherein the second prosthesis is configured to replace at least one inferior facet of a superior one of the vertebrae and is adapted to be incorporated into the spinal motion segment, the second prosthesis comprising a second articular surface that replicates a natural articular surface of an inferior facet, the inferior facet forming a joint with the superior facet; wherein, when the artificial disc and the first and second prostheses are operatively connected to the spinal motion segment, the artificial disc restores articulation between vertebral bodies of the vertebrae, the first prosthesis articulates with the second prosthesis, no portion of the first and second prostheses contacts a posterior arch of the vertebrae, and the artificial disc and the first and second prostheses cooperate to restore natural biomechanics of the spinal motion segment. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
Specification