US 11,806,249 B2
Expandable interbody implant with lordosis correction
Amir Ali Sharifi-Mehr, Bloomingdale, NJ (US); and Oliver Buchert, Franklin Lakes, NJ (US)
Assigned to HOWMEDICA OSTEONICS CORP., Mahwah, NJ (US)
Filed by Howmedica Osteonics Corp., Mahwah, NJ (US)
Filed on Jan. 26, 2021, as Appl. No. 17/158,499.
Application 17/158,499 is a continuation of application No. 15/599,638, filed on May 19, 2017, granted, now 10,940,018.
Claims priority of provisional application 62/339,459, filed on May 20, 2016.
Prior Publication US 2021/0145600 A1, May 20, 2021
Int. Cl. A61F 2/44 (2006.01); A61F 2/46 (2006.01); A61F 2/30 (2006.01); A61F 2/48 (2006.01)
CPC A61F 2/447 (2013.01) [A61F 2/4455 (2013.01); A61F 2/4611 (2013.01); A61F 2/441 (2013.01); A61F 2/484 (2021.08); A61F 2002/30329 (2013.01); A61F 2002/30372 (2013.01); A61F 2002/30403 (2013.01); A61F 2002/30471 (2013.01); A61F 2002/30482 (2013.01); A61F 2002/30515 (2013.01); A61F 2002/30537 (2013.01); A61F 2002/30538 (2013.01); A61F 2002/4629 (2013.01); A61F 2002/4692 (2013.01); A61F 2002/4693 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of performing interbody fusion, the method comprising:
positioning a spinal implant between a first vertebral body and a second vertebral body, wherein the spinal implant includes a top plate including a first surface to engage the first vertebral body, a housing including a second surface to engage the second vertebral body, and a hydraulic system between the top plate and the housing; and
inducing, based on an actuation force to the hydraulic system, movement of the top plate away from the housing at both a first end portion and a second end portion of the spinal implant, wherein
the induced movement of the top plate away from the housing is guided by a linkage, such that the top plate moves away from the housing by a first distance at the first end portion of the implant and a second distance at the second end portion of the implant, and
the first distance is greater than the second distance.