Abstract: In order to develop known tracking systems, in particular in the medical field, the invention proposes a device for the contactless determination and measurement of a spatial position and/or spatial orientation of bodies using a tracking system, by means of which the bodies are located and brought into relation with one another, the tracking system, or at least components or modules thereof, being mobile.

Abstract: The present invention relates to a navigation device (4) for visually selecting and positioning components of a multi-part joint endoprosthesis (1) for ball joints of a human or animal body, in particular a hip joint endoprosthesis, with a shaft (2) that can be inserted into a marrow cavity of a bone, an exchangeable connection neck (3) and a joint head located at the free end of the connection neck (3), forming a ball joint with a joint socket (5) that can be connected to a bone, wherein there is provided at least one navigation ball (4) with an outer diameter corresponding to the joint socket (5) and with a recess (8) for attachment at the free end of the connection neck (3) as well as with at least one partially peripheral marking (6) provided on its surface, as well as two or more connection necks (3) of different geometries, wherein each connection neck (3) may be connected with the shaft (2) at different positions and at the same or at different CCD angles and at the same or different antetorsion angles

Abstract: The invention relates to an apparatus for fixing a ligament, which comprises a bone-anchoring element having a proximal end and a distal end which has a bore running in the longitudinal direction, and which comprises a clamping sleeve having a proximal end and a distal end, which clamping sleeve can be accommodated in the bore. The clamping sleeve is radially expandable, with the result that the ligament can be fixed between the clamping sleeve and the bore of the bone-anchoring element.

Abstract: In order to develop known tracking systems, in particular in the medical field, the invention proposes a device for the contactless determination and measurement of a spatial position and/or spatial orientation of bodies using a tracking system, by means of which the bodies are located and brought into relation with one another, the tracking system, or at least components or modules thereof, being mobile.

Abstract: Luminous units of this kind have light members in the form of incandescent lamps, whose contacts are connected electrically conductive with an electrical connector via an intermediate or contact plate. The contact plate must be fastened separately, owing to which manufacture and assembly are complicated and costly. In order to avoid this, the luminous unit has a light member holder, which is connected with the light member and has a coupling piece for the electrical connector. The coupling connection permits a simple and reliable electrical connection between the light member and the electrical connector. The contacts of the light member have contact pins, which are lengthened by lengthening pins. These allow the contact pins to be directly connected with the electrical connector.

Abstract: Luminous units of this kind have light members in the form of incandescent lamps, whose contacts are connected electrically conductive with an electrical connector via an intermediate or contact plate. The contact plate must be fastened separately, owing to which manufacture and assembly are complicated and costly. In order to avoid this, the luminous unit has a light member holder, which is connected with the light member and has a coupling piece for the electrical connector. The coupling connection permits a simple and reliable electrical connection between the light member and the electrical connector. The contacts of the light member have contact pins, which are lengthened by lengthening pins. These allow the contact pins to be directly connected with the electrical connector.