US Patent 10363076 Bone fastening system

A bone fastening system may include a cannulated screw component, a seating component, and a holding component. The screw component may include a screw head arranged in the region of a proximal end of the screw component, and an elongate screw shaft extending from the screw head along a longitudinal axis towards a distal end of the screw component. The screw head may include a proximal surface on a front side facing the proximal end and a distal surface on a back side facing the distal end. A portion of the distal surface may form a contact surface. The seating component may include a central opening having an opening diameter larger than the maximum diameter of the screw shaft and smaller than the maximum diameter of the screw head.