A device for guiding a dental-surgical hollow bur during a bone extraction, having a template that can be fixed in the region of a extraction point and having at least one guiding means arranged on the template, wherein the guiding means guides the hollow bur such that only a portion of the distal edge of the hollow bur can be brought into contact with the bone. Furthermore, a method for producing such a device is specified.

A surgical guide used in computer-aided orthognathic or similar bone surgery, the guide being structured to properly locate the osteotomy marking members and implant fixation screw-receiving holes on the bone surfaces of the patient, and/or the cutting of the osteotomy or the drilling of implant fixation screw-receiving holes. The guide has a bone-conforming member and a dental-interface member connected by a bridging member, the inner surfaces of the bone-conforming member and the dental interface member conforming to the topographical surfaces of the patient's bone and teeth. The dental-interface member abuts the front and sides of the teeth. A similarly designed fixation implant may also be provided.

An implant assembly and its method of use, used in computer-aided orthognathic surgery for properly repositioning a mobile bone segment separated by osteotomy from a malformed mandible, maxilla or chin, the implant assembly comprising fixation bone plates, at least one removable alignment plate for proper pre-osteotomy placement of the implant assembly onto the mandible, maxilla or chin, at least one removable post-osteotomy alignment plate for proper positioning of the mobile bone segment relative to the mandible, maxilla or chin, and a removable cutting guide for guiding the osteotomy saw during separation of the mobile bone segment from the mandible, maxilla or chin.

The present disclosure describes a surgical guide comprising a cutting guide defining a plurality of cutting slots and including at least one removable insert positioned between the plurality of cutting slots. The at least one removable insert defines an aperture which is designed to receive a surgical fastening device. The surgical guide further comprises a template guide which defines a feature. The at least one removable insert is designed to fit in the template guide at least in part using the feature.

A method for configuring a surgical guide and an associated implant. The implant and surgical guide are for maxillofacial osteosynthesis. Three-dimensional models of the pre- and post-operative anatomy are used to define attachment points. These attachment points are used to determine a structure for the implant and surgical guide.

A method for computer-assisted planning of a transplant surgery is provided. The method includes obtaining a computer-readable representation of a donor and recipient skeletal fragment; determining surgical cutting planes on the computer-readable representation of the donor skeletal fragment from which a portion of the donor skeletal fragment from the computer-readable representation of the donor skeletal fragment will be harvested; determining virtual cutting guides; performing a virtual osteotomy to separate the portion of the donor skeletal fragment from the computer-readable representation of the donor skeletal fragment from a remainder portion of the donor skeletal fragment based on a position of the virtual cutting guides that are attached to the computer-readable representation of the donor skeletal fragment; positioning the donor skeletal fragment within a transplant region of the recipient skeletal fragment; and creating a hybrid computer-readable representation comprising the recipient skeletal fragment and the portion of the donor skeletal.

A computer-assisted surgical system can include a donor sub-system and a recipient sub-system. The donor sub-system includes a first reference unit having a first trackable element, a fragment reference unit having a second trackable element, and a first detector configured to provide at least one of a first signal corresponding to a detected location of one or more of the first trackable element and the second trackable element. The recipient sub-system includes a second reference unit having a third trackable element, and a second detector configured to provide at least one of a second signal corresponding to a detected location of at least the third trackable element.

A bone fusion implant for fusing a first bone region to a second bone region of a mammalian bone includes a first fixing region having multiple securing means receiving holes for attaching to the first bone and a second fixing region which is connected to the first fixing region and has multiple securing means receiving holes for attaching to the second bone region, wherein a cutting tool guiding contour which specifies a severing line is formed between the first and the second fixing region. A method for the individualized production of such a bone fusion implant includes recording an actual 3D model of the mammalian bone implant in a first data set, drafting a target 3D model, and producing the bone fusion implant by way of the target 3D model.

The invention relates to a bone positioning device (1) for use in the repositioning of bone sections relative to each other in case of dysgnathia, comprising a main body (2), which has a bottom side (3), which faces the lower jaw (7) and in which there are recesses (5) for receiving navigating aids (6) fixed to the lower jaw, and an opposite top side (4), which faces the upper jaw and in which there are likewise recesses (5) for receiving navigating aids (6) fixed to the upper jaw, wherein at least one cutting-tool guide device (8) is attached to the main body (2).

The present application describes various embodiments of guides that are designed in accordance with one or more anatomical landmarks near an operated bone (or portion thereof). In aspects, at least a portion of a guide is designed to conform to the shape of one or more anatomical landmarks in order to attach (or latch) the guide to at least one of the one or more anatomical landmarks. In aspects, the contact surface (or inner contour) of a guide may also be designed to follow at least a portion of the contour of the operated bone. The landmark-conforming and/or contour-following design of the guide may assist surgeons in the placement of the guide.