US 12,011,365 B2
Transversely expandable minimally invasive inter vertebral cage
Omar F. Jimenez, Seattle, WA (US); and Yefim I. Safris, Golden Valley, MN (US)
Assigned to Octagon Spine LLC, Bellevue, WA (US)
Filed by Octagon Spine LLC, Seattle, WA (US)
Filed on Jul. 18, 2022, as Appl. No. 17/866,896.
Prior Publication US 2024/0016622 A1, Jan. 18, 2024
Int. Cl. A61F 2/44 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/4455 (2013.01) [A61F 2002/30405 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An expandable intervertebral body fusion device, comprising:
a unitary monolithic body, the body having a plurality of body segments connected to each other with flexure members and an opening defined between the plurality of body segments, including—
an anterior body segment;
a posterior body segment;
one or more mediolateral body segments extending between the anterior body segment and the posterior body segment along both a lateral side and a medial side of the anterior body segment and the posterior body segment;
an opening formed in each of the anterior body segment and the posterior body segment; and
a locking bushing extending from one of the anterior body segment and the posterior body segment into the opening in the body,
wherein the body is configured to be mediolaterally expanded from a compressed configuration to an expanded configuration by interaction of an expansion tool with at least one of the openings in the anterior body segment and posterior body segment causing the one or more mediolateral body segments on the lateral side and the one or more mediolateral body segments on the medial side to generally move away from each other and expand the opening between the plurality of body segments such that the body forms a greater mediolateral footprint in the expanded configuration than in the compressed configuration, and wherein further expansion of the body is prevented by interaction of the locking bushing with the other of the anterior body segment and the posterior body segment such that an axial length of the locking bushing predetermines and limits an amount of expansion of the body.