Spinal interbody devices with density gradients and associated methods
AssigneeOrthofix US LLC
InventorsSamuel Fang, Easton Braithwaite, Brian Dewillie
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Abstract
An interbody device configured for insertion between adjacent vertebrae includes a body comprising and exterior surface and an interior surface defining a cavity. The body comprises a visualization window extending between the exterior surface and the interior surface, where the visualization window comprises a lattice of radiopaque structures. A density of the lattice in a central region of the visualization window is less than in the density of the lattice in an outer region of the visualization window such that the visualization window is radiolucent through the central region.
Claims16
An interbody device configured for insertion between adjacent vertebrae, the interbody device comprising:
- a plurality of window regions, each comprising a top portion, a middle portion, and a bottom portion, wherein the plurality of window regions are connected to each other and comprise a periodic minimal surface associated with a geometric parameter, wherein the geometric parameter varies from the top portions and bottom portions of the plurality of window regions to the middle portions of the plurality of window regions,
- wherein at least one window region of the plurality of window regions comprises a lattice of radiopaque structures, and
- wherein a density of the lattice in a central region of the at least one window region is less than a density of the lattice in an outer region of the at least one window region such that the at least one window region is radiolucent through at least the central region.
An interbody implant, comprising:
- a plurality of visualization windows disposed about a periphery of the implant, wherein at least one visualization window of the plurality of visualization windows comprises a periodic minimal surface associated with a geometric parameter, wherein the geometric parameter varies from a top portion of the at least one visualization window to a middle portion of the at least one visualization window such that the top portion comprises a first radiographic transparency and the middle portion comprises a second radiographic transparency that is greater than the first radiographic transparency.
Dependencies are inferred from the claim text.