摘要:
An implant is provided with a main body (1) and with a double coating applied to at least one surface section of the main body (1), wherein the double coating comprises an adhesion promoter layer (2), applied directly to the at least one surface section of the main body, and of an osteointegrative layer (3) covering the adhesion promoter layer (2). The layers (2;3) consist of pure titanium, wherein the adhesion promoter layer (2) has a thickness of 2-6 μm, in particular a thickness of 3-5 μm, and the osteointegrative layer (3) has a thickness of 50-70 μm, in particular of 55-65 μm. Moreover, the osteointegrative layer (3) has a porosity of 70-90% and a roughness Rzof at least 45 μm. A related method is also provided for producing such an implant.
摘要:
An intervertebral implant includes a middle part, comprising two pins, which can be introduced into the intervertebral space between two vertebrae having a central axis, a first end intersecting the central axis, and a second end intersecting the central axis, and two longitudinal parts each with a longitudinal axis extending transversely to the central axis of the middle part and each with an apposition surface directed transversely to the central axis of the middle part contacting the two processi spinosi of two adjacent vertebra bodies. Each part is connectable with one end of the middle part in such a manner that the apposition surfaces are directed against one another. The middle part of the implant is extendable transversely to its central axis along the longitudinal axes of the two parts.
摘要:
A longitudinal support having a first and second longitudinal support element. The first longitudinal support element having a longitudinal axis, includes first and second coaxial connecting segments provided with a first end and a second end, and an deformable articulated socket on the second connecting segment first longitudinal support element. The deformable articulated socket is axially open and can be deformed transversely to the longitudinal axis. The articulated socket includes a hollow spherical segment-like cavity with a diameter of D with an opening on the second end that is concentric with the longitudinal axis and has a diameter of d, while d
摘要:
A damping element (1) includes: (a) two spring elements (2, 4) which are coaxial with or parallel to a longitudinal axis (3) and two axially end-side connectors (5, 6), where (b) the first spring element (2) exhibits a spring rate F, (c) the second spring element (4) exhibits a spring rate f, and (d) the spring rates F and f are different. A device stabilizing adjacent vertebras, comprising (a) N pedicle screws of hooks (12), where N≧3 and where (b) each pedicle screw or pedicle hook (12) includes a receiving device (13) receiving a longitudinal affixation device (7) and where (c) an element (14) acting as a spring is inserted between two adjacent pedicle screws (12) or pedicle hooks.
摘要:
An intervertebral implant (1) with a hollow cylindrical shape is provided with an outer thread (2) for screwing the implant into the intermediate space between two adjacent vertebrae. The implant (1) is provided with openings (3) in its wall through which bone can grow into the implant (1), with the implant (1) being manufactured of a material which is transparent for X-rays.
摘要:
The basket-like container (1) contains a reception volume for bone tissue. After the filling in of the bone tissue the container is implanted. The reception volume is located within a wall (2) which is arranged about an axis (10). This peripheral wall consists of a grid, a fabric or a mesh. Transversely to the axis the wall enables an X-ray optical seeing through of the unfilled reception volume. The surface component, which is permeable by X-rays, amounts to at least 30%.
摘要:
An implant is provided with a main body (1) and with a double coating applied to at least one surface section of the main body (1), wherein the double coating comprises an adhesion promoter layer (2), applied directly to the at least one surface section of the main body, and of an osteointegrative layer (3) covering the adhesion promoter layer (2). The layers (2;3) consist of pure titanium, wherein the adhesion promoter layer (2) has a thickness of 2-6 μm, in particular a thickness of 3-5 μm, and the osteointegrative layer (3) has a thickness of 50-70 μm, in particular of 55-65 μm. Moreover, the osteointegrative layer (3) has a porosity of 70-90% and a roughness Rz of at least 45 μm. A related method is also provided for producing such an implant.
摘要:
A damping element includes: two spring elements which are coaxial with or parallel to a longitudinal axis and two axially end-side connectors, where the first spring element exhibits a spring rate F, the second spring element exhibits a spring rate f, and the spring rates F and f are different. A device stabilizing adjacent vertebrae, including N pedicle screws or hooks, where N is greater than or equal to 3 and where each pedicle screw or pedicle hook includes a receiving device receiving a longitudinal affixation device and where an element acting as a spring is inserted between two adjacent pedicle screws or pedicle hooks.
摘要:
A modular intervertebral implant or a modular intervertebral disk prosthesis has a middle piece or central section equipped with elements for detachable fixation to one or two apposition plates designed to rest against the base plate or cover plate of an intervertebral body. A modular kit of such modular implants or disks includes n central sections and m apposition plates, where n=2 and m=4 and preferably n=3 and m=6. The surfaces of the apposition plates that face the central section have elements complementary to the elements for detachable fixation on the central section.
摘要:
A device to join a longitudinal support (3) with a bone, in particular with a body of the vertebra, comprising a bone anchoring element (1) that can be fixed on a bone, a connecting element (9) provided on the rear end (5) of the bone anchoring element (1) with a channel axis (27) passing through the connecting element (9) transversely to the central axis (2) to accept a longitudinal support (3), tightening means (13) which can be connected with the free end (21) of the connecting element (9) and are suitable for the fixing of a longitudinal support (3) introduced into the channel (25), and a tilting element (8) provided in the channel (25), said tilting element being rotatable about both the central axis (2) and the axis (7) of rotation that is transverse to the axis (7) of the channel.