Patent ID: 9452006
Filing Date: 2016-09-27
CPC Classification: A61B

Claim Text:
1. A polyaxial bone anchoring device comprising: a bone anchoring element having a shank for anchoring in a bone and a head; a receiving part for coupling a rod to the bone anchoring element, the receiving part comprising: a locking ring configured to be mounted around the head receiving portion; wherein when the head receiving portion is connected to the rod receiving portion and the locking ring is around the head receiving portion, the head is insertable into the head receiving portion from the second end of the head receiving portion, is pivotable in the head receiving portion such that the bounding edge is configured to permit the bone anchoring element to pivot at a larger maximum pivot angle relative to the receiving part at a first location of the bounding edge than at a second location of the bounding edge, and can be locked at an angle relative to the receiving part by compressing the head receiving portion with the locking ring; and wherein when the first region of the head receiving portion is in the rod receiving portion, at least one retaining element is insertable into the receiving part to connect the head receiving portion to the rod receiving portion.