BONE ANCHOR ELEMENT FOR INSERTION INTO A BONE AND/OR FIXATION OF TISSUE TO THE BONE, BONE ANCHOR SYSTEM AND METHOD FOR PREPARING A BONE ANCHOR SYSTEM

The invention relates to a bone anchor element for inserting into a bone and/or fixing tissue to the bone, wherein the bone anchor element has in a longitudinal direction a proximal end, a proximal section, a distal section and a distal end, and the proximal section has on the outside a contoured indentation to prevent the bone anchor element inserted into the bone from being pulled out and on the inside a continuous hollow space in the longitudinal direction having a proximal opening and a distal opening, and the distal section is formed in a flattened, plate-shaped manner having a plate plane, wherein the bone anchor element has at least one transverse through-hole for receiving a suture material, and the distal section has in the longitudinal direction to the distal end a first transverse through-hole through the plate plane, wherein the first transverse through-hole is connected to the continuous hollow space of the proximal section via the distal opening, and subsequently has a second transverse through-hole through the plate plane, wherein the first transverse through-hole and the second transverse through-hole are separated by a web of the plate-shaped distal section, and the second transverse through-hole has on the distal end a gap opening in the longitudinal direction and essentially transverse to the plate plane so that the suture material can be flexibly guided through the continuous hollow space, the first transverse through-hole, the second transverse through-hole and/or the gap opening, and the web has on its proximal side in relation to the first transverse through-hole an inclined abutment surface in such a manner that in the event an eyelet is pushed through from the proximal opening through the continuous hollow space of the bone anchor element, through the distal opening and through the first transverse through-hole in the longitudinal direction, the eyelet is guided outward through the first transverse through-hole upon striking the inclined abutment surface. Furthermore, the invention relates to an inserter, a bone anchor system and a method for assembling a bone anchor system.