Artificial spinal disk prosthesis
AssigneeGlobus Medical, Inc.
InventorJeff Phelps
Life of this patent
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Abstract
Intervertebral endoprosthesis discs suitable for surgical implantation between two vertebrae having and methods thereof. The prosthetic disc may have an endoprosthesis body including an anterior region and a posterior region designed to be positioned between a first vertebra and a second vertebra with a first and second movable insert positioned rotatably in anterior cavities and is rotatable to adjust the fasteners.
Claims11
An intervertebral implant comprising:
- a body comprising an anterior region and a posterior region configured to be positioned between a first vertebra and a second vertebra, wherein the anterior region of the body is configured to be positioned near the anterior region of the first vertebra and the second vertebra and the posterior region of the body is configured to be positioned near the posterior region of the first vertebra and the second vertebra;
- at least a first anterior cavity and a second anterior cavity positioned in the anterior region;
- a first movable insert having a first fastener aperture and positioned rotatably in the first anterior cavity, wherein the first movable insert is rotatable in the first anterior cavity;
- and
- a second movable insert having a second fastener aperture and positioned rotatably in the second anterior cavity,
- wherein the second movable insert is rotatable in the second anterior cavity independent of the first movable insert.
A surgical cage for surgical implantation between two vertebrae of a spinal column, said surgical cage comprising:
- a body having an upper surface for engaging an inferior surface of a superior vertebra and a lower surface for engaging a superior surface of an inferior vertebra;
- a first fastener and a second fastener;
- a first structure within the body for increasing an angle at which the first fastener may be secured into the superior vertebra;
- and
- a second structure within the body for increasing an angle at which the second fastener may be screwed into the inferior vertebra,
- wherein the first structure and the second structure are located between the upper surface and the lower surface of the body,
- wherein the first structure having portions that define an aperture through the first structure for receiving the first fastener comprises a portion of first cylindrically shaped shell that is rotatably mounted on the body and the second structure having portions that define an aperture through the second structure for receiving the second fastener comprises a portion of second cylindrically shaped shell that is rotatably mounted on the body.
An intervertebral implant for surgical implantation between two vertebrae comprising:
- a body comprising an anterior region and a posterior region designed to be positioned entirely between a first vertebra and a second vertebra;
- at least a first anterior cavity and a second anterior cavity positioned in the anterior region;
- a first movable insert having a first fastener aperture and positioned rotatably in the first anterior cavity, wherein the first movable insert is rotatable in the first anterior cavity;
- and
- a second movable insert having a second fastener aperture and positioned rotatably in the second anterior cavity,
- wherein the second movable insert is rotatable in the second anterior cavity independent of the first movable insert,
- wherein the first and second movable insert rotate in an axis traverse to a longitudinal axis of the body.
Dependencies are inferred from the claim text.