US 12,433,757 B2
Expandable, angularly adjustable and articulating intervertebral cages
Guntmar Eisen, Wurmlingen (DE); Detlev Ganter, Wurmlingen (DE); and Marcus Eif, Holtendorf (DE)
Assigned to EIT Emerging Implant Technologies GmbH, Wurmlingen (DE)
Filed by EIT EMERGING IMPLANT TECHNOLOGIES GMBH, Wurmlingen (DE)
Filed on Feb. 13, 2023, as Appl. No. 18/168,021.
Application 18/168,021 is a continuation of application No. 15/636,447, filed on Jun. 28, 2017, granted, now 11,596,523.
Claims priority of provisional application 62/355,619, filed on Jun. 28, 2016.
Prior Publication US 2023/0201001 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/44 (2006.01); A61F 2/46 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/4425 (2013.01) [A61F 2/4455 (2013.01); A61F 2/447 (2013.01); A61F 2/4611 (2013.01); A61F 2002/30261 (2013.01); A61F 2002/30471 (2013.01); A61F 2002/30515 (2013.01); A61F 2002/30537 (2013.01); A61F 2002/30538 (2013.01); A61F 2002/30556 (2013.01); A61F 2002/30579 (2013.01); A61F 2002/30624 (2013.01); A61F 2002/30985 (2013.01); A61F 2002/4615 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An expandable spinal implant, comprising:
an upper plate component configured for placement against an endplate of a first vertebral body and a lower plate component configured for placement against an endplate of a second, adjacent vertebral body;
an articulating mechanism connecting the upper and lower plate components together and comprising an intermediate guide component having an internal cavity; and
an actuator pin comprising a shaft and an enlarged head portion that extends from the shaft in a direction, the actuator pin being configured to move within the internal cavity of the intermediate guide component in the direction to effect angular expansion of the expandable spinal implant,
wherein the articulating mechanism allows rolling movement of the upper and lower plate components relative to one another about a pivot axis that moves along a length of the expandable spinal implant, thereby causing angular adjustment of the expandable spinal implant.