US 12,491,080 B2
Expandable spinal cage
Carl Michael Nilsson, Moreland Hills, OH (US); Yehuda Leib Herschman, Boca Raton, FL (US); and Byron Douglas Giddens, Winter Park, FL (US)
Assigned to Dynamic Implants Inc., Winter Park, FL (US)
Filed by Dynamic Implants Inc., Winter Park, FL (US)
Filed on Jan. 17, 2023, as Appl. No. 18/155,253.
Prior Publication US 2024/0238098 A1, Jul. 18, 2024
Int. Cl. A61F 2/44 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/4455 (2013.01) [A61F 2002/30324 (2013.01); A61F 2002/3054 (2013.01); A61F 2002/30579 (2013.01); A61F 2002/3082 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An expanding spinal cage device, comprising;
a first piece comprising a cage support body;
a second piece unconnected to the first piece prior to insertion, the second piece comprising a width expander body configured and sized for insertion from an area outside of the first piece and into an interior cavity of the first piece resulting in lateral expansion of the first piece from a first width to a second width; and
a third piece unconnected to the first piece and the second piece prior to insertion, the third piece comprising a vertical expander body configured and sized for insertion from an area outside of the first piece or the second piece and into the first or second piece resulting in vertical expansion of the first piece from a first height to a second height;
wherein the second width is greater than the first width;
wherein the second height is greater than the first height;
wherein the first piece comprises a distal end and proximal end, the distal end configured for insertion into an intervertebral space in an unexpanded disposition; and
wherein the second piece comprises a distal end and proximal end, the distal end of the second piece configured for operable insertion into the proximal end of the first piece; and the second piece comprising a top section and separable bottom section coupled together at the proximal end thereof in a hinged arrangement.