Height-and angle-adjustable motion disc implant
OwnerAlexandre DiNello, Thomas DiMauro +4inventors
InventorsAlexandre DiNello, Thomas DiMauro, Jeffrey Sutton, Michael O'Neil, Hassan Serhan, Michael Slivka
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Abstract
This invention relates to an intervertebral motion disc having a height adjustable endplate.
Claims48
A prosthetic endplate in an intervertebral motion disc, the endplate comprising:
- i) an outer plate comprising
- an outer surface adapted for fixation to a first vertebral body,
- an inner surface having a threaded recess, and
- a body portion therebetween,
- ii) an inner plate comprising:
- an inner surface having a first articulation surface,
- an outer surface, and
- a body portion therebetween having a threaded lateral surface,
- wherein the threaded lateral surface of the body portion of the inner plate is mated with threaded recess of the outer plate.
A method of adjusting a position of a prosthetic endplate, comprising the steps of:
- a) providing a prosthetic endplate comprising:
- i) an outer plate comprising an outer surface adapted for fixation to a first vertebral body,
- an inner surface having a threaded recess, and
- a body portion therebetween,
- ii) an inner plate comprising:
- an inner surface,
- an outer surface, and
- a body portion therebetween having a threaded lateral surface,
- wherein the threaded lateral surface of the body portion of the inner plate is mated with threaded recess of the outer plate,
- b) fixing the outer surface of the outer plate to the first vertebral body to produce a first relative position of the inner plate upon the outer plate, and
- c) selectively adjusting the first relative position to a second relative position of the inner plate upon the outer plate.
A prosthetic endplate in an intervertebral motion disc, the endplate comprising:
- i) an outer plate comprising
- an outer surface adapted for fixation to a first vertebral body,
- an inner surface having a threaded recess, and
- a body portion therebetween,
- ii) an inner plate comprising:
- an inner surface,
- an outer surface, and
- a body portion therebetween having a threaded lateral surface,
- wherein the threaded lateral surface of the body portion of the inner plate is mated with threaded recess of the outer plate.
A prosthetic endplate in an intervertebral motion disc, the endplate comprising:
- i) an outer plate comprising
- an outer surface adapted for fixation to a first vertebral body,
- an inner surface having a recess therein, and
- a body portion therebetween, and
- ii) an inner plate comprising:
- an inner surface having a first articulation surface,
- an outer surface having a wedged surface, and
- a body portion therebetween disposed within the recess of the outer plate.
A kit for correcting spinal deformity comprising:
- a) an intervertebral motion disc, and
- b) a vertebral tether.
A method of correcting a spinal deformity, comprising the steps of:
- a) providing a deformed functional spinal unit comprising an intervertebral disc and opposing endplates,
- b) removing at least a portion of the intervertbral disc to form a disc space,
- c) inserting an intervertebral motion disc having wedged shape into the disc space.
A prosthetic endplate in an intervertebral motion disc, the endplate comprising:
- i) an outer plate comprising
- an outer surface adapted for fixation to a first vertebral body,
- an inner surface having a recess therein, and
- a body portion therebetween, and
- ii) an inner plate comprising:
- an inner surface and an outer surface forming a wedge, and
- a body portion therebetween disposed within the recess of the outer plate.
A motion disc comprising:
- a) a first rigid endplate having a moveable wedge therein, the wedge having an outer surface, and
- b) a second flexible endplate having a flexible portion attached to a rigid portion having a wedge surface,
- wherein the outer surface of the wedge of the first rigid endplate slides against the wedge surface of the second flexible endplate.
Dependencies are inferred from the claim text.