Intervertebral spinal implant devices and methods of use
AssigneeSDGI Holdings, Inc.
InventorsEric Heinz, Philippe Pare, Roy Lim
Life of this patent
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Abstract
A spinal implant device used for the surgical treatment of a spinal disorder. The implant device may be a static device or a dynamic device. In one embodiment, the implant device is constructed of a radiolucent material with attached radiopaque markers. The markers may be constructed of the same radiolucent material and a radiopaque additive. In one embodiment, the implant device is constructed of a carbon nanostructure reinforced polymer. In one embodiment, the implant device has a porous bone interface surface. The pore density of the bone interface surface may vary up to a larger value in areas where the bone interface surface contacts a cortical bone portion of a vertebra.
Claims59
An implant device comprising:
- a body constructed from a first radiolucent material;
- and
- a first marker positioned within the body, the first marker constructed from the radiolucent material and having a radiopaque additive.
An implant device comprising:
- a body constructed from a first material having a first radiolucency;
- and
- a first marker positioned within the body, the first marker constructed from the first material and a second material, the second material having a second radiolucency greater than the first material.
A method of making an implant comprising the steps of:
- forming a body from a radiolucent material;
- forming a marker from at least the radiolucent material and a radiopaque material;
- and
- attaching the marker to the body.
An implant device comprising:
- an outer surface having a first region and a second region, each region having a common construction, the first region having a pore density that is greater than the second region.
An implant device comprising:
- a body sized to be inserted within an intervertebral space between a first and second vertebra, the body having a face to contact one of the vertebra, the face having a first region that substantially aligns with a cortical rim of the vertebra and a second region inward from the first region, the first region having a pore density that is greater than the second region.
A method of making an implant comprising:
- forming an outer layer on a support surface of the implant;
- creating a first region on the outer layer having a first pore density;
- and
- creating a second region on the outer layer having a second pore density that is different than the first density.
A implant that provides for dynamic motion in the spine comprising:
- a body having a bearing surface to allow relative vertebral motion, the body constructed of a polymeric matrix having carbon nanostructures.
A implant that provides for dynamic motion in the spine comprising:
- an end plate having a bone interface surface and a first bearing surface;
- and
- a nucleus having a second bearing surface that slidingly engages the first bearing surface to allow relative vertebral motion, the nucleus constructed of a polymeric matrix having carbon nanostructures.
A method of making an implant that provides for dynamic motion in the spine, the method comprising:
- forming a body having a polymer matrix comprising less than about 15 percent by weight carbon nanofibers;
- and
- forming a bearing surface on the implant, the bearing surface providing articulating motion between vertebral bodies.
Dependencies are inferred from the claim text.