Facet arthroplasty devices and methods
AssigneeArchus Orthopedics, Inc.
InventorMark A Reiley
Life of this patent
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Abstract
Devices and surgical methods treat various types of adult spinal pathologies, such as degenerative spondylolisthesis, spinal stenosis, degenerative lumbar scoliosis, and kypho-scoliosis. Various types of spinal joint replacement prostheses, surgical procedures for performing spinal joint replacements, and surgical instruments are used to perform the surgical procedures.
Claims31
A prosthesis to replace a cepbalad portion of a left natural facet joint on a vertebral body and a cephalad portion of a right natural facet joint on the vertebral body, the prosthesis comprising
- an integrated base member including left and right side regions and a mid-region joining the side regions without fixation of the mid-region to bone, to form the integrated base member,
- a fixation area on at least one of the left and right side regions to accommodate fixation of the integrated base member to the vertebral body,
- an artificial left facet joint structure on the left side region adapted and configured to replace a cephalad portion of the left natural facet joint, and
- an artificial right facet joint structure on the right side region adapted and configured to replace a cephalad portion of the right natural facet joint.
A prosthesis to replace a cephalad portion of a natural facet joint on a vertebral body comprising
- a base member,
- a fixation area on the base member to accommodate fixation of the base member to the vertebral body, and
- an artificial facet joint structure on the base member including means for replacing a cephalad portion of a natural facet joint after removal of at least a portion of an inferior articular processes and at least a portion of a lamina from the vertebral body.
A prosthesis to replace a caudal portion of a natural facet joint on a vertebral body comprising
- a stem member including a fixation area to accommodate fixation of the stem member to the vertebral body at or near a pedicle, and
- an artificial facet joint structure carried by the stem member adapted and configured to replace a caudal portion of a natural facet joint.
A prosthesis to replace a caudal portion of a natural facet joint on a vertebral body comprising
- a screw member including a fixation area to accommodate fixation of the screw member to the vertebral body at or near a pedicle, and
- an artificial facet joint structure carried by the screw member adapted and configured to replace a caudal portion of a natural facet joint.
Dependencies are inferred from the claim text.