Abstract: The invention relates to a method for recording the position, location or movement of a body part of a patient and a device for recording the position, location or movement of a body part or a medical instrument. According to the invention, a graphic marker is connected with the body part or the instrument and an image of the body comprising the graphic marker is generated by an image recording camera (5, 6, 7). The image is processed by a processor device (14) as an image file. The invention is characterized in that at least one geometric size characteristic of the graphic marker is known, wherein the processor device (14) determines the position, location and/or movement of the graphic marker in the three-dimensional space and in a quantitative manner relative to the image recording camera (5, 6, 7) by means of the known size characteristic.

Abstract: The invention relates to a method for recording the position, location or movement of a body part of a patient and a device for recording the position, location or movement of a body part or a medical instrument. According to the invention, a graphic marker is connected with the body part or the instrument and an image of the body comprising the graphic marker is generated by an image recording camera. The image is processed by a processor device as an image file. The invention is characterized in that at least one geometric size characteristic of the graphic marker is known, wherein the processor device determines the position, location and/or movement of the graphic marker in the three-dimensional space and in quantitative manner relative to the image recording camera by means of the known size characteristic.

Abstract: The invention relates to a method and a registering system for the transfer of a jaw model in relation to a hinge axis, for example, in an articulator, and to a connection device for connecting a lower jaw adapter (1) to a measuring carrier (4), and a bite carrier (3) for producing a bite key. The invention is characterized in that the transfer of the mandibular joint geometry, especially the exact position of the hinge axis of the patient, can be carried out in a state of assembly or an articulator using only a hinge axis determination relative to the lower jaw of the patient. The transfer of the facial arc required until now in prior art is rendered superfluous by the invention. Moreover, the possibilities of use of the transfer in relation to the hinge axis are extended, modularised and simultaneously simplified and accelerated. Sources of error are eliminated, the expenditure on equipment and costs of the transfer of the model can be critically reduced.