Patent ID: 9326804
Filing Date: 2016-05-03
CPC Classification: A61B

Claim Text:
1. A bone anchoring element comprising: a shaft for anchoring in a bone wherein said shaft comprises a shaft axis, a plurality of discrete spaced-apart barb elements, a tip at one end of the shaft that is configured for insertion into a bone, and a head at the other end of the shaft that is configured for attachment to a connection element; wherein each barb element of the plurality of discrete spaced-apart barb elements has a base and a free end with the free end of each barb element closer to the head of the shaft than the base of each barb element, and the free ends of the plurality of discrete spaced-apart barb elements are arranged along at least one helical line around the shaft axis for at least one full turn and are configured to provide for threading into or out from a bone by means of a screwing motion; wherein the plurality of discrete spaced-apart barb elements are elastically deformable such that the free ends are movable between a collapsed position closer to the shaft axis and a deployed position further from the shaft axis.