US 12,251,135 B2
Set screw and set screw driving tool for improved rod alignment
Morten Beyer, Rødkærsbro (DK)
Assigned to NEO MEDICAL SA, La Villette (CH)
Appl. No. 17/439,850
Filed by Neo Medical SA, La Villette (CH)
PCT Filed Mar. 25, 2020, PCT No. PCT/IB2020/052815
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2020/194207, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. PCT/IB2019/052451 (WO), filed on Mar. 26, 2019.
Prior Publication US 2022/0183723 A1, Jun. 16, 2022
Int. Cl. A61B 17/70 (2006.01)
CPC A61B 17/7034 (2013.01) [A61B 17/7091 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An orthopedic tool kit comprising:
a set screw driver; and
a set screw configured to threadably engage with a head of a pedicle screw to hold a spinal rod, the set screw having a spinal rod facing side and a set screw driver facing side, the set screw including
an opening traversing the set screw from the spinal rod facing side to the set screw driver facing side, the opening having a torque-engaging mechanism to apply a torque to the set screw by the set screw driver, and
an annular surface at the spinal rod facing side surrounding the opening,
wherein the set screw driver includes
a shaft, and
an engagement part configured to engage with the torque engaging mechanism of the set screw,
wherein, in an engaged position between the set screw and the set screw driver, a frontal portion of the engagement part is protruding from the spinal rod facing side of the set screw, and
wherein the annular surface of the spinal rod facing side is sloped towards the set screw driver facing side and away from a central axis of the set screw and sloped towards an outer threading of the set screw in a radial direction away from the central axis of the set screw.