Patent ID: 11937851
Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A polyaxial bone anchoring device comprising:
a bone anchoring element comprising a shank for anchoring to a bone and a head;
a receiving part having a first end, a second end, a longitudinal axis extending through the first end and the second end, a channel at the first end, and an accommodation space at the second end for pivotably holding the head;
a pressure member positionable in the receiving part, the pressure member comprising a pressure exerting surface and a deformable portion, wherein the pressure exerting surface is movable to a locking position to exert pressure on the head to lock the head relative to the receiving part; and
a rod insertable into the channel;
wherein when the head and the pressure member are in the receiving part, the rod is insertable into the channel and configured to deform the deformable portion, wherein deformation of the deformable portion by the rod adjusts the pressure member from a first configuration where the head remains pivotable relative to the receiving part to a second configuration where the pressure exerting surface is at the locking position and the head is locked.