Abstract: A device for fixation of vertebral bodies including a longitudinal support with a central axis and two or more anchoring elements. Each anchoring element having a longitudinal axis, a front end, and a back end. The longitudinal axis of each anchoring element may be arranged at an angle of between 65 degrees and 115 degrees relative to the central axis of the longitudinal support, while the anchoring elements are designed to abut the back end. The anchoring elements may be shaped in the form of a blade toward the front end.

Abstract: An intervertebral implant is shaped in the form of a hollow cylinder and has a cover face, a base face, a hollow cylinder wall with an outer lateral area and an inner lateral area, as well as a hollow cylinder central axis. The implant is formed at least 95 percent by volume of a radiolucent material which has a modulus of elasticity of between 1 and 20 GPa. Postsurgical observation is permitted by means of X-rays, and at the same time the implant has a high degree of biocompatibility.

Abstract: A device for fixation of vertebral bodies including a longitudinal support with a central axis and n anchoring elements (2?i?n). Each anchoring element having a longitudinal axes, a front end, and a back end. The longitudinal axis of each anchoring elements may be arranged at an angle of between 65° and 115° relative to the central axis of the longitudinal support, while the anchoring elements are designed to abut the back end. The anchoring elements may be shaped in the form of a blade toward the front end.

Abstract: A device for fixation of vertebral bodies including a longitudinal support with a central axis and n anchoring elements (2≦i≦n). Each anchoring element having a longitudinal axes, a front end, and a back end. The longitudinal axis of each anchoring elements may be arranged at an angle of between 65° and 115° relative to the central axis of the longitudinal support, while the anchoring elements are designed to abut the back end. The anchoring elements may be shaped in the form of a blade toward the front end.

Abstract: An intervertebral fusion cage for insertion between two adjacent, opposing vertebrae, wherein the fusion cage is constructed in a way that stress absorbed by the cage is transferred to the graft material in the hollow inner cavity, thus allowing ideal strain levels to be attained in the graft material under minimal loads, while also offering a level of protection to the graft material preventing mechanical failure of the graft material due to high strains.

Abstract: An invertebral fusion cage for insertion between two adjacent, opposing vertebrae, wherein the fusion cage is constructed in a way that stress absorbed by the cage is transferred to the graft material in the hollow inner cavity, thus allowing ideal strain levels to be attained in the graft material under minimal loads, while also offering a level of protection to the graft material preventing mechanical failure of the graft material due to high strains.

Abstract: The invention concerns a clamp for a spinal affixation device which has a base body (1) crossed by a duct (2) having a longitudinal axis (3) for receiving a longitudinal support. The clamp includes a substantially planar extension (4) continuing the base body (1) and crossed by a screw hole (5) having a center axis (6) for receiving a bone screw. The duct (2) can longitudinally and rotationally lock in place a longitudinal support which is inserted therein. The longitudinal axis (3) of the duct (2) and the center axis (6) of the screw hole (5) form skewed straight lines of constant spacing (7) at a distance in the range of 4 to 10 mm.