Patent ID: 7736381

Claim:
A bone screw comprising: an elongated tube having a first end, a second end and a tubular wall defining an interior opening extending from the first end to the second end, the tube being suitable for implanting in a living body; a tip at the first end of the tube; and an elongated holding clement having a first end section connected to the second end of the tube, a second end section opposite the first end section having a surface configured to cooperate with a screw-in tool and an elongated rod-like middle section between the first end section and the second end section having a longitudinal length, the tube and the holding element defining a longitudinal axis extending from the first end to the second end of the tube and along the longitudinal length of the holding element from the first end section to the second end section; wherein the tube further comprises a bone thread on an outside surface of the tubular wall and the tubular wall comprises a plurality of recesses through the tubular wall to the interior opening forming a mesh-like open network; wherein a diameter along an entire length of the tube is greatest at an outer diameter of the bone thread such that the tube is fully immersed in an opening created when screwing in; wherein the length of the middle section of the holding element extending along the longitudinal axis is greater than the greatest outer diameter of the bone thread of the tube; and wherein the holding element is suitable to transfer torque applied to the second end section from a screw-in tool to the tube to screw-in and fully immerse the tube into a bone.