US 11,744,711 B2
Spinal interbody devices with density gradients and associated methods
Samuel Fang, Plano, TX (US); Easton Braithwaite, Anna, TX (US); and Brian Dewillie, Addison, TX (US)
Assigned to Orthofix US LLC, Lewisville, TX (US)
Filed by Orthofix US LLC, Lewisville, TX (US)
Filed on Mar. 22, 2021, as Appl. No. 17/208,546.
Prior Publication US 2022/0296386 A1, Sep. 22, 2022
Int. Cl. A61F 2/44 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/4455 (2013.01) [A61F 2/30771 (2013.01); A61F 2002/30006 (2013.01); A61F 2002/3008 (2013.01); A61F 2002/3092 (2013.01); A61F 2002/30784 (2013.01); A61F 2310/00023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An interbody device configured for insertion between adjacent vertebrae, the interbody device comprising:
a body comprising an exterior surface and an interior surface defining a cavity, wherein the body comprises a visualization window extending between the exterior surface and the interior surface, wherein the visualization window comprises a lattice of radiopaque structures,
wherein a density of the lattice in a central region of the visualization window is less than a density of the lattice in an outer region of the visualization window such that the visualization window is radiolucent through the central region.