BONE ANCHORING DEVICE

摘要

A bone anchoring device includes a receiving part for receiving a rod, the receiving part having a first bore coaxial with a longitudinal axis and a second bore. The bone anchoring device also includes an anchoring element having a first end for insertion into the bone and a second end positionable within a second bore, the second end having a spherically shaped surface portion. The bone anchoring device further has a locking device provided to the second bore of the receiving part The locking device protrudes from an inner wall of the second bore and engages with a recessed surface portion of the second end of the anchoring element, such that the anchoring element is pivotable relative to the receiving part around a single axis of rotation. The locking device may comprise pins inserted into through holes formed in the receiving part, which engage with the recessed surface portion of the second end.

主权项

1. A bone anchoring device, comprising:
a receiving part for receiving a rod, the receiving part having a first bore coaxial with a longitudinal axis and a second bore, the receiving part comprising a through hole; an anchoring element having a first end for insertion into the bone and a second end positionable within the second bore, the second end comprising a surface having a spherically shaped surface portion and a portion recessed from the spherically shaped surface portion; at least one pin provided to the second bore of the receiving part by insertion into the through hole, such that the pin protrudes from an inner surface of the second bore and engages with the portion recessed from the spherically shaped surface portion of the second end of the anchoring element, such that the anchoring element is pivotable relative to the receiving part around a single axis of rotation.