US 12,329,652 B2
Expandable fusion device with independent expansion systems
Eugene Shoshtaev, Del Mar, CA (US)
Assigned to Integrity Implants Inc., Palm Beach Gardens, FL (US)
Filed by INTEGRITY IMPLANTS INC., Palm Beach Gardens, FL (US)
Filed on Jul. 20, 2021, as Appl. No. 17/380,897.
Claims priority of provisional application 63/054,229, filed on Jul. 20, 2020.
Prior Publication US 2022/0015923 A1, Jan. 20, 2022
Int. Cl. A61F 2/44 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/4455 (2013.01) [A61F 2002/30266 (2013.01); A61F 2002/3055 (2013.01); A61F 2002/30556 (2013.01); A61F 2002/30579 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A cage with independent width and height expansion, the cage comprising:
a beam assembly having a proximal end, a distal end, and a long axis disposed between the proximal end and the distal end, a first beam with a proximal end and a distal end, a second beam with a proximal end and a distal end, and a third beam with a proximal end and a distal end, and a collapsed state and an expanded state;
a wedge assembly having a first wedge and a second wedge, the first wedge movably connected to a first guide and configured for increasing the width of the cage when the first wedge is moved in the direction of the long axis relative to the beam assembly, wherein the first wedge is positioned between the first beam and the third beam, and the first guide (i) comprises a vertical post slideably coupled directly to the first beam and the second beam such that the first beam and second beam move vertically along the vertical post, and (ii) does not provide an expansion in height by being moved in the direction of the long axis relative to the beam assembly; and
a ramp assembly having a ramp movably positioned between the first beam and the second beam and configured for increasing the height of the cage with a movement of the ramp in the direction of the long axis relative to the beam assembly;
wherein the translation of the first wedge increases the width of the cage without increasing the height of the cage, the translation of the ramp increases the height of the cage without increasing the width of the cage, and the ramp is configured to translate independently of the wedge assembly in the direction of the long axis.