US 12,076,058 B2
Systems and methods for pedicle screw stabilization of spinal vertebrae
Sherwin Hua, Hillsborough, CA (US); and Natasha Chernishof, San Jose, CA (US)
Assigned to Spine23 Inc., Campbell, CA (US)
Filed by SPINE23 INC., Campbell, CA (US)
Filed on May 12, 2022, as Appl. No. 17/743,135.
Claims priority of provisional application 63/187,859, filed on May 12, 2021.
Prior Publication US 2022/0361922 A1, Nov. 17, 2022
Int. Cl. A61B 17/70 (2006.01)
CPC A61B 17/7077 (2013.01) [A61B 17/7032 (2013.01); A61B 17/7085 (2013.01)] 37 Claims
OG exemplary drawing
 
1. A system for stabilizing spinal vertebrae through a skin incision, comprising:
a first screw having a first screw head, a second screw having a second screw head, and a third screw having a third screw head;
a first tower having a distal portion, a proximal portion, and a bend between the distal portion and the proximal portion, the first tower being configured to be removably coupled with the first screw at a distal end of the first tower;
a second tower having a distal portion and a proximal portion, the second tower configured to be removably coupled with the second screw at a distal end of the second tower; and
a third tower having a distal portion, a proximal portion, and a bend between the distal portion and the proximal portion, the third tower being configured to be removably coupled with the third screw at a distal end of the third tower;
wherein:
the first tower is configured to removably couple with the first screw such that, when the first tower is coupled with the first screw, an axial centerline of the distal portion of the first tower is approximately collinear with an axial centerline of the first screw;
the second tower is configured to removably couple with the second screw such that, when the second tower is coupled with the second screw, an axial centerline of the distal portion of the second tower is approximately collinear with an axial centerline of the second screw;
the third tower is configured to removably couple with the third screw such that, when the third tower is coupled with the third screw, an axial centerline of the distal portion of the third tower is approximately collinear with an axial centerline of the third screw;
the proximal portion of the first tower extends at an acute, nonzero angle away from the axial centerline of the distal portion of the first tower;
the proximal portion of the third tower extends at an acute, nonzero angle away from the axial centerline of the distal portion of the third tower;
in an operable state, the first, second, and third towers are configured to intersect one another; and
the first tower, the second tower, and the third tower are rigid.