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US 12,279,958 B2Granted
Interbody spacer for spinal fusion
AssigneeCorelink, LLC
InventorJosh Arnone
Life of this patent
Estimating the term…
Abstract
An interbody spacer for spinal fusion surgery includes first and second opposite side walls that have open-cell metal foam at upper and lower faces, and a three-dimensional lattice disposed between open-cell metal foam at the upper and lower faces. The open-cell metal foam is in communication with the three-dimensional lattice so that bone growth can enter the three-dimensional lattice from the open-cell metal foam. The interbody spacer may be formed by additive manufacturing.
Claims19
An interbody spacer for spinal fusion surgery, the interbody spacer comprising:
- first and second opposite longitudinal end portions, wherein a longitudinal axis of the interbody spacer extends through the first and second opposite end portions;
- first and second opposite side walls extending longitudinally between and interconnecting the first and second longitudinal end portions, wherein the first and second opposite side walls define a width of the interbody spacer therebetween, the first and second opposite side walls having interior and exterior surfaces;
- upper and lower faces at respective upper and lower portions of the corresponding first and second opposite longitudinal end portions and first and second opposite side walls, wherein the upper and lower faces define a height of the interbody spacer therebetween;
- and
- an interior cavity defined by the first and second opposite longitudinal end portions and the interior surfaces of the first and second opposite side walls, wherein the interior cavity extends through the upper and lower faces,
- wherein each of the first and second opposite side walls includes
- open-cell metal foam at the upper and lower faces, and
- teeth at the upper and lower faces adjacent outer perimeters of the upper and lower faces.
5 more elements
A method of forming an interbody spacer comprising:
- forming the interbody spacer as an integral, one-piece interbody spacer by additive manufacturing process, wherein the formed integral, one-piece interbody spacer comprises:
- first and second opposite longitudinal end portions, wherein a longitudinal axis of the interbody spacer extends through the first and second opposite end portions;
- first and second opposite side walls extending longitudinally between and interconnecting the first and second longitudinal end portions, wherein the first and second opposite side walls define a width of the interbody spacer therebetween, the first and second opposite side walls having interior and exterior surfaces;
- upper and lower faces at respective upper and lower portions of the corresponding first and second opposite longitudinal end portions and first and second opposite side walls, wherein the upper and lower faces define a height of the interbody spacer therebetween;
- and
- an interior cavity defined by the first and second opposite longitudinal end portions and the interior surfaces of the first and second opposite side walls, wherein the interior cavity extends through the upper and lower faces,
- wherein each of the first and second opposite side walls includes
- open-cell metal foam at the upper and lower faces, and
- teeth at the upper and lower faces adjacent outer perimeters of the upper and lower faces.
6 more elements
Dependencies are inferred from the claim text.