Patent ID: 9486246
Filing Date: 2016-11-08
CPC Classification: A61B,Y10T

Claim Text:
1. A bone anchoring device comprising: an anchoring element comprising a shaft for anchoring in a bone, and a head; a receiving part comprising a first end and a second end, and having a channel for receiving a rod at the flat the first end, and an accommodation space for accommodating the head, the accommodation space having an opening at the second end; and a pressure element configured to be located at least partially in the accommodation space, the pressure element comprising a flexible portion configured to be positioned around a portion of the head having a greatest diameter to clamp the head therein, wherein the anchoring element is pivotable with respect to the receiving part, and the pressure element is movable inside the accommodation space to lock the head within the flexible portion of the pressure element and to fix the anchoring element at an angle relative to the receiving part, wherein the pressure element comprises a first securing portion, and the receiving part comprises a second securing portion configured to engage the first securing portion, wherein when the head of the anchoring element is in the flexible portion of the pressure element and while the pressure element maintains a first rotational orientation relative to the receiving part, the pressure element is movable axially from the first end of the receiving part to a first axial position wherein the first securing portion of the pressure element is closer than the second securing portion of the receiving part is to the second end of the receiving part, and wherein when the pressure element is at the first axial position, the pressure element is rotatable between the first rotational orientation wherein the first securing portion is out of engagement with the second securing portion, and a second rotational orientation wherein the first securing portion is engaged with the second securing portion to form a rigid coupling therebetween to prevent removal of the pressure element from the first end of the receiving part.