Bone screw retaining system

摘要

An implant, particularly for the spinal column, comprises a plate (1) having openings (2), bone-anchoring members (5) capable of being accommodated in the openings and at least one split-ring (4) capable of holding the members in the orifices. The split-ring can come into direct contact with the anchoring member or members to hold the member or members in the orifices.