US 12,232,775 B2
Anchoring assembly for anchoring a rod to a bone or a vertebra
Timo Biedermann, Trossingen (DE)
Assigned to BIEDERMANN TECHNOLOGIES GMBH & CO. KG, Donaueschingen (DE)
Filed by BIEDERMANN TECHNOLOGIES GMBH & CO. KG, Donaueschingen (DE)
Filed on Oct. 13, 2021, as Appl. No. 17/500,514.
Application 17/500,514 is a continuation of application No. 16/789,044, filed on Feb. 12, 2020, granted, now 11,166,753.
Claims priority of provisional application 62/804,920, filed on Feb. 13, 2019.
Claims priority of application No. 19 157 004 (EP), filed on Feb. 13, 2019.
Prior Publication US 2022/0104852 A1, Apr. 7, 2022
Int. Cl. A61B 17/70 (2006.01)
CPC A61B 17/7032 (2013.01) [A61B 17/7037 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An anchoring assembly for anchoring a rod to a bone or a vertebra, the anchoring assembly comprising:
a shank;
a receiving part pivotably connectable to the shank, the receiving part defining a channel for receiving a rod;
a pressure element configured to lock an angular position of the shank relative to the receiving part, wherein the pressure element comprises a base configured to simultaneously contact an inserted rod at at least two circumferentially distinct and spaced apart contact areas around a rod axis of the inserted rod;
a first closure element configured to cooperate with the receiving part and to contact the inserted rod for the inserted rod to exert pressure onto the pressure element to simultaneously lock the angular position of the shank relative to the receiving part and fix the inserted rod in the channel, while the first closure element remains spaced apart from the pressure element; and
a second closure element configured to cooperate with the receiving part, wherein the second closure element comprises a first locking member configured to contact and directly exert pressure on the pressure element to lock the angular position of the shank relative to the receiving part, and a second locking member positionable in the first locking member and configured to separately contact and directly exert pressure on the inserted rod to fix the inserted rod in the channel, wherein a stop is provided on the first locking member to limit an advancement of the second locking member relative to the first locking member, wherein the stop is at or close to a lower end of the first locking member and faces the pressure element when the pressure element and the second closure element are in the receiving part;
wherein the first closure element and the second closure element are configured to interchangeably cooperate with the receiving part.