US 12,408,951 B2
Receiving part for receiving a rod for coupling the rod to a bone anchoring element
Lutz Biedermann, VS-Villingen (DE); and Wilfried Matthis, Weisweil (DE)
Assigned to BIEDERMANN TECHNOLOGIES GMBH & CO. KG, Donaueschingen (DE)
Filed by BIEDERMANN TECHNOLOGIES GMBH & CO. KG, Donaueschingen (DE)
Filed on Feb. 23, 2024, as Appl. No. 18/585,577.
Application 18/585,577 is a continuation of application No. 17/493,042, filed on Oct. 4, 2021, granted, now 11,931,079.
Application 17/493,042 is a continuation of application No. 16/538,163, filed on Aug. 12, 2019, granted, now 11,160,582, issued on Nov. 2, 2021.
Application 16/538,163 is a continuation of application No. 15/872,428, filed on Jan. 16, 2018, granted, now 10,426,522, issued on Oct. 1, 2019.
Application 15/872,428 is a continuation of application No. 14/878,809, filed on Oct. 8, 2015, granted, now 9,895,172, issued on Feb. 20, 2018.
Application 14/878,809 is a continuation of application No. 12/855,395, filed on Aug. 12, 2010, granted, now 9,283,000, issued on Mar. 15, 2016.
Claims priority of provisional application 61/233,406, filed on Aug. 12, 2009.
Claims priority of application No. 09 167 751 (EP), filed on Aug. 12, 2009.
Prior Publication US 2024/0268867 A1, Aug. 15, 2024
Int. Cl. A61B 17/70 (2006.01)
CPC A61B 17/7037 (2013.01) [A61B 17/7032 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A bone anchoring device comprising:
a bone anchoring element comprising a shaft and a head;
a receiving part for receiving a rod for coupling the rod to the bone anchoring element, the receiving part comprising:
a receiving part body having a first end, a second end below the first end, a channel at the first end for receiving the rod, an engagement surface for engagement with a separate closure element for locking the rod in the channel, an accommodation space for accommodating the head of the bone anchoring element, and an opening at the second end sized for inserting the head therethrough into the accommodation space; and
a pressure element insertable upwards through the opening of the receiving part body and configured to be positioned at least partially in the accommodation space, the pressure element comprising a rod contacting surface configured to extend into the channel of the receiving part body to contact the rod;
wherein when the pressure element is in the receiving part body at an insertion position of the receiving part, the head is insertable upwardly past the opening of the receiving part body to a seat that directly engages the head to restrict the head from falling back out of the receiving part body through the opening; and
wherein the receiving part is adjustable from the insertion position to a pre-locking position where the head is prevented from being removed from the receiving part body through the opening and where the receiving part is restricted from being adjusted back towards the insertion position.