Intervertebral spinal implant
AssigneeGlobus Medical, Inc.
InventorRobert Ryan
Life of this patent
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Abstract
An intervertebral implant for implantation in an intervertebral space between vertebrae. The implant includes a body extending from an upper surface to a lower surface. The body has a front end, a rear end and a pair of spaced apart first and second side walls extending between the front and rear walls such that an interior chamber is defined within the front and rear ends and the first and second walls. The body defines an outer perimeter and an inner perimeter extending about the internal chamber. At least one of the side walls is defined by a solid support structure and an integral porous structure, the porous structure extending from the outer perimeter to the inner perimeter. The porous structure embeds or encapsulates at least a portion of the solid support structure.
Claims19
A transforaminal lumbar intervertebral implant for implantation in an intervertebral space between vertebrae, the implant comprising:
- a body having a front end, a rear end and opposed side walls extending between the ends, the body having an outer perimeter and an inner perimeter about an internal chamber, the body comprising:
- an upper surface and a lower surface, the upper surface defined by a solid upper outer rim and a spaced apart solid upper inner rim and the lower surface defined by a solid lower outer rim and a spaced apart solid lower inner rim;
- a solid front wall extending at the front end between at least the solid upper outer rim and the solid lower outer rim;
- a solid rear wall extending at the rear end between at least the solid upper outer rim and the solid lower outer rim;
- each of the side walls including at least one solid cross strut extending between the solid upper rims and at least one solid cross strut extending between the solid lower rims, wherein each solid cross strut has an associated curved contoured portion;
- each of the side walls including an outer solid support structure extending along the outer perimeter between the upper outer rim and the lower outer rim and an inner solid support structure extending along the inner perimeter between the upper inner rim and the lower inner rim, each side wall substantially free of solid structure between the inner and outer solid support structures;
- and
- a porous structure integrally formed with the solid upper rims, the solid lower rims, each of the solid cross struts, and each of the solid support structures in each of the side walls, the porous structure extending from the body outer perimeter to the body inner perimeter, and
- wherein each solid cross strut and associated curved contoured portion define a contour of a surface serration.
An intervertebral implant for implantation in an intervertebral space between vertebrae, wherein said implant comprises:
- a body having a front end, a rear end and opposed side walls extending between the ends, the body having an outer perimeter and an inner perimeter about an internal chamber, the body having a generally rectangular configuration and the internal chamber having a length from front to rear greater than width between the side walls, the body comprising:
- an upper surface and a lower surface, the upper surface defined by a solid upper outer rim and a spaced apart solid upper inner rim and the lower surface defined by a solid lower outer rim and a spaced apart solid lower inner rim;
- a solid front wall extending at the front end between at least the solid upper outer rim and the solid lower outer rim;
- a solid rear wall extending at the rear end between at least the solid upper outer rim and the solid lower outer rim;
- each of the side walls including at least one solid support structure extending between the upper and lower surfaces;
- and
- a porous structure integrally formed with the solid upper rims, the solid lower rims and the at least one solid support structure in each of the side walls, the porous structure extending from the body outer perimeter to the body inner perimeter, the solid upper and lower outer rims and the solid front and rear walls extending along the outer perimeter such that the porous structure is encased within solid structure,
- wherein the upper surface and lower surface comprise surface serrations, and wherein a contour of each surface serration is defined by a solid cross strut and a curved contoured portion.
An intervertebral implant for implantation in an intervertebral space between vertebrae, wherein said implant comprises:
- a body extending from an upper surface to a lower surface, the body having a front end, a rear end and a pair of spaced apart first and second side walls extending between the front and rear ends such that an interior chamber is defined within the front and rear ends and the first and second walls, the body defining an outer perimeter and an inner perimeter extending about the internal chamber,
- wherein at least one of the walls is defined by a solid support structure and an integral porous structure, the solid support structure including an outer solid support structure extending along the outer perimeter between the upper outer rim and the lower outer rim and an inner solid support structure extending along the inner perimeter between the upper inner rim and the lower inner rim, the porous structure extending from the outer perimeter to the inner perimeter and from the upper surface to the lower surface,
- wherein the upper surface and lower surface comprise surface serrations, and wherein a contour of each surface serration is defined by a solid cross strut and a curved contoured portion.
Dependencies are inferred from the claim text.