US 12,268,422 B2
Systems, devices and methods for treating a lateral curvature of a spine
Sherwin Hua, Campbell, CA (US)
Assigned to SPINE23 INC., Campbell, CA (US)
Appl. No. 17/779,975
Filed by SPINE23 INC., Campbell, CA (US)
PCT Filed Nov. 25, 2020, PCT No. PCT/US2020/062420
§ 371(c)(1), (2) Date May 25, 2022,
PCT Pub. No. WO2021/108709, PCT Pub. Date Jun. 3, 2021.
Claims priority of provisional application 62/941,641, filed on Nov. 27, 2019.
Prior Publication US 2022/0409246 A1, Dec. 29, 2022
Int. Cl. A61B 17/70 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/7052 (2013.01) [A61B 17/7032 (2013.01); A61B 2090/064 (2016.02); A61B 2090/065 (2016.02); A61B 2090/066 (2016.02)] 29 Claims
OG exemplary drawing
 
1. A system for treating at least a lateral curvature of a spine in the coronal plane, comprising:
a plurality of screws each configured to be implanted in a corresponding one of a plurality of vertebrae, each of the plurality of screws having a screw head;
a plurality of rigid extensions each configured to be removably coupled with a corresponding one of the plurality of screws, each of the plurality of rigid extensions having a proximal end portion, a distal end portion configured to be removably coupled with the screw head of a corresponding screw, and a middle portion between the proximal end portion and the distal end portion; and
a rod that is configured to be coupled with each screw head of the plurality of screws;
wherein:
each of the plurality of rigid extensions has a length extending from the proximal end portion to the distal end portion;
an angle of an axial centerline of the proximal end portion of at least one of the plurality of rigid extensions is different than an angle of an axial centerline of the distal end portion of the at least one of the plurality of rigid extensions;
in an operable position, wherein the plurality of rigid extensions are each coupled with the plurality of screws, the axial centerline of the distal end portion of each of the plurality of rigid extensions extends from the respective one of the plurality of screws in a lateral direction relative to a longitudinal direction of the spine from the corresponding one of the plurality of vertebrae; and
the system is configured such that the rod can be guided along the plurality of rigid extensions from the proximal end portion of each of the plurality of rigid extensions toward the distal end portion of each of the plurality of rigid extensions and into engagement with the plurality of screws.