摘要:
A multiaxial connection osteosynthesis system for the spine having a bone anchor, a connector and a connecting member. The bone anchor may be implanted into a vertebral body with a connector being attached to a head of the bone anchor. The connector includes a seat for receiving the connecting member. As the connecting member is locked into position it causes walls of the connector to inwardly deform and lock the head of the bone anchor relative to the connector.
摘要:
A backbone osteosynthesis system for anterior fixing comprising first and second arms, each capable of receiving bone screws and a longitudinal plate for rigidly linking the arms, the plate being in one single piece with the first arm. The system comprises a way to adjust the second arm in a longitudinal position on the plate.
摘要:
The invention concerns a distraction and/or contraction device for backbone surgery comprising connectors designed to be fixed to respective vertebral anchoring members, linkup means between said connectors and means for adjusting the distance between said connectors including a pinion assembly and an endless screw.
摘要:
A spinal osteosynthesis system, in particular for anterior spinal fixation, comprising at least an anchoring member, an elongated linking element and a connector capable of being fixed to the anchoring member and to the linking element by selecting an angular position of the linking element relative to the connector. The system comprises a second elongated linking element, the connector being capable of being fixed simultaneously to both linking elements.
摘要:
The invention concerns a spinal intervertebral implant (100) comprising at least a first element (101′) having a first end (112′), and a second element (101) having a second end (112), each end having successive ramps (108, 116), the ramps of the two ends being adapted to co-operate mutually to vary one dimension of the implant depending on the relative position of the elements. The invention is characterised in that the ramps of each end are arranged along a circle.
摘要:
A device for backbone osteosynthesis having a bone anchoring element, a linking rod for linking the anchoring element with other anchoring elements, an intermediate element, a swivel linkage between the intermediate element first part and the bone anchoring element, a clamping linkage between the intermediate element second part and the intervertebral linking rod, and a locking mechanism for the swivel and the clamping linkages. The clamping linkage includes a clip with two branches laterally adjusted from the swivel and open opposite same. The locking mechanism acts on the branches in the region of their free ends so as to stress the latter towards each other.
摘要:
A system for osteosynthesis of the spine. The system includes at least two pedicular screws and a linking plate for linking the screws together in an essentially rigid manner. Each screw has a bone anchoring threaded part, a non-circular section head, and a threaded end shank adapted to cooperate with a nut. The plate has at least one opening adapted to have the threaded end shank of a screw passed through it and be trapped between the screw head and the nut. A locking member is also provided for preventing relative angular movement between the heads of the screws and the linking plate. The locking member is adapted to be inserted between the plate and the screw head and includes a bore through which the threaded end shank of the screw passes, and further includes a first locking cooperation of shapes with the screw head and a second cooperation of shapes with the plate.
摘要:
The invention concerns a backbone osteosynthesis system comprising an elongated element, a vertebral screw, and a connecting element comprising two branches for clamping between them the linking element, at least one first branch being capable of being engaged onto the screw. The system comprises a second vertebral screw, the first branch having an extension capable of being engaged onto the second screw. The system may comprise a second elongated linking element.
摘要:
The invention concerns an implant comprising a body with an upper surface and a lower surface capable of pressing on the vertebral end-plate located immediately above and beneath and having further at least a through aperture emerging on the upper and lower surfaces. The invention is characterized in that the implant further comprises an anchoring member mounted in such a way as to be capable of moving in the aperture. The said anchoring member includes a support part adjacent to a first vertebral end-plate, and at least a projecting anchoring element extending from the support part towards the opposite vertebral end-plate. Thus, when the implant is compressed between the vertebral end-plates, the anchoring member is stressed by the first vertebral end-plate at the support part to move relative to the body and the at least providing projecting element overlaps the body surface facing the opposite vertebral end-plate and is anchored therein. The invention is particularly applicable to bone fusion between cervical vertebrae.
摘要:
The invention concerns a spinal intervertebral implant (200) comprising at least an upper element (203), a lower element (205), and an intermediate member (201) adapted to co-operate with the upper and lower elements by helical linking means (207, 254) including means (216) forming hard pass points when the helical linkage is carried out.