Intervertebral implant

Strain regulating fusion cage for spinal fusion surgery

Device for detachably clamping a longitudinal carrier in a surgical implant

Telescopic vertebral prosthesis

Intervertebral implant

The invention relates to an intervertebral implant comprising a lower implant part, having a central axis and an apposition section, designed to rest against the covering surface of the adjacent lower vertebra and an upper implant part comprising a bore with an internal thread, a central axis and an apposition section, designed to rest against the covering surface of the adjacent upper vertebra. Specifically, the lower and upper implant parts are secured in relation to each other against rotation about the central axis and a threaded screw with an external thread is guided in the upper implant part and connected to the lower implant part, the external thread cooperating with the internal thread. The lower and upper implant parts, and the threaded screw lie coaxially along their common central axis, the threaded screw being connected to the lower implant part so that it is axially fixed but able to rotate.

Intervertebral implant

An intervertebral implant 1 having a lower implant part 2 and an upper implant part 5. The lower implant part 2 has a hollow cylindrical cavity 3 with an outer casing 14 and an axis of rotation 11, and an apposition part 4 intended for contacting the covering surface of the adjoining lower vertebra. The upper implant part 5 has an essentially circularly cylindrical shaft 6, which has an external thread 7 and an axis of rotation 11 and extends into the cavity 3 of the lower implant part 2, and an apposition part 8, intended for contacting the covering surface of the adjoining upper vertebra. The two implant parts 2, 5 may be secured to prevent rotation about their axis of rotation 11. The implant 1 also includes a ring 9 with an internal thread 10, which is disposed between the two implant parts 2, 5 and interacts with the external thread 7 of the upper implant part 5. The two implant parts 2, 5 and the ring 9 may be disposed coaxially along their common axis of rotation 11, so that, by ...

Device for releasably clamping a longitudinal member within a surgical implant

A device for releasably clamping and connecting a longitudinal member within a surgical implant includes at least one yoke-like connecting body with a through-bore, coupling means arranged on the connecting body for fastening the connecting body to a further part of the implant, a yoke-like clamping body which can slide in the through-bore and has resilient side walls and a through-opening for receiving the longitudinal member, and fixation means. A wedging effect produced by elevations on side walls of the clamping body retains the longitudinal member in the through-opening.