Abstract: An orthodontic anchor device (10) for a surgical traction element is described. The anchor device includes a fixing device (12), which can be fixed in or to a bone in the mouth region, as well as a clamping device (18) coupled to the fixing device (12). The clamping device (18) has at least one locating region for the traction element as well as an oblique surface which can rotate relative to the locating region or which co-operates with a rotatable element. In order to produce a clamping force which fixes the traction element, a relative rotation takes place between the oblique surface and the rotatable element or between the oblique surface and the locating region.

Abstract: A keeping-ready device for bone screws and a keeping-ready system comprising this keeping-ready device are described. The keeping-ready device has a surface, in which a plurality of orifices for accommodating the bone screws is provided. The keeping-ready device allows the bone screws to be kept ready countersunk in relation to the surface.

Abstract: A measuring device for bone screw types of different shaft diameters is described. This measuring device has multiple receiving grooves for bone screws in a surface or an area near the surface. In the area of each receiving groove a length measuring scale, which is associated with one or more of the different bone screw types, is arranged. Also, for each of the receiving grooves a limit stop to work with a received bone screw is provided. The receiving grooves and/or the associated limit stops have a selectivity with respect to the shaft diameter of the bone screw types which can be received in the individual receiving grooves.

Abstract: An orthodontic anchor device (10) for a surgical traction element is described. The anchor device comprises a fixing device (12), which can be fixed in or to a bone in the mouth region, as well as a clamping device (18) coupled to the fixing device (12). The clamping device (18) has at least one locating region for the traction element as well as an oblique surface which can rotate relative to the locating region or which co-operates with a rotatable element. In order to produce a clamping force which fixes the traction element, a relative rotation takes place between the oblique surface and the rotatable element or between the oblique surface and the locating region.

Abstract: The invention relates to a self-retaining implant for fixing a bone cover or a bone fragment in an opening in a skull bone. The implant comprises a support element with an upper side and an lower side facing the bone cover. Arranged on the lower side of the support element is an extension, which supports a spike preferably extending parallel to the support element. The spike can be driven laterally into the bone cover or bone fragment by means of a driving-in device according to the invention. The driving-in device according to the invention comprises a receiving element for the implant. A driving-in mechanism for driving the implant into the bone cover or bone fragment can be coupled with the receiving element.

Abstract: The invention relates to a sleeve system for use in combination with a plurality of different types of sleeve for surgical operations, particularly in the central region of the face. Said sleeve system comprises a sleeve handle, which is constructed for the purpose of mounting different types of sleeve, and a first arrangement for interacting with a mounted sleeve of a first type, and also a second arrangement for interacting with a mounted sleeve of a second type. The first arrangement prevents rotation of a sleeve of the first type, relative to the handle, and the second arrangement makes possible guided rotation of a mounted sleeve of the second type, relative to said handle.

Abstract: A measuring device for bone screw types of different shaft diameters is described. This measuring device has multiple receiving grooves for bone screws in a surface or an area near the surface. In the area of each receiving groove a length measuring scale, which is associated with one or more of the different bone screw types, is arranged. Also, for each of the receiving grooves a limit stop to work with a received bone screw is provided. The receiving grooves and/or the associated limit stops have a selectivity with respect to the shaft diameter of the bone screw types which can be received in the individual receiving grooves.

Abstract: A keeping-ready device for bone screws and a keeping-ready system comprising this keeping-ready device are described. The keeping-ready device has a surface, in which a plurality of orifices for accommodating the bone screws is provided. The keeping-ready device allows the bone screws to be kept ready countersunk in relation to the surface.

Abstract: Bending pliers are described for perforated bone plates with two jaws movable relative to one another. A receiving jaw has two spaced receptacles for insertion into holes of a bone plate to be received. A pressure-exerting jaw comprises a pressure-exerting element which, when the bending pliers are actuated, cooperates with a received bone plate in a region between the two receptacles. The receptacles have an outside diameter which is variable along their axial extent in order to cooperate, preferably in a form-fitting manner, with different hole types.

Abstract: The invention relates to a self-retaining implant for fixing a bone cover or a bone fragment in an opening in a skull bone. The implant comprises a support element with an upper side and an lower side facing the bone cover. Arranged on the lower side of the support element is an extension, which supports a spike preferably extending parallel to the support element. The spike can be driven laterally into the bone cover or bone fragment by means of a driving-in device according to the invention. The driving-in device according to the invention comprises a receiving element for the implant. A driving-in mechanism for driving the implant into the bone cover or bone fragment can be coupled with the receiving element.