Spinevision Sa

Gerard M Vanacker

Reinhard Zeller

A connector for an osteosynthesis system is intended to provide a connection between a rigid correction rod of circular cross section and a transverse connection element of a spinal osteosynthesis system. The connector comprises a hook having a first semicylindrical seat oriented substantially along a first axis to receive the correction rod in a sliding manner. The connector also having a second seat having an axis substantially perpendicular to the first axis. The second seat opening into the first seat to receive a substantially spherical end of a transverse rod of the transverse connection element. The second seat comprises a tapped hole with an axis oriented substantially perpendicular to the axis of the second seat in order to receive a clamping screw which will exert pressure on the spherical end of the transverse rod, the spherical end coming to bear on the correction rod.

Connector for an osteosynthesis system intended to provide a connection between two rods of a spinal osteosynthesis system, osteosynthesis system using such a connector, and method of implanting such an osteosynthesis system

The invention concerns an osteosynthesis system, comprising at least a linking element in the form of a rod, at least two fixing elements each capable of being anchored in a vertebra, and a locking screw. The invention is characterized in that the base of the head has a general horse-saddle shape, and the head has guide means for an independent closure component designed to be fixed on the head after the linking element has been positioned in the fork of the head, said closure component being generally U-shaped whereof the branches are urged to co-operate with the branches of-the fork-shaped part of the head and whereof the base comprises an internal thread for co-operating with the locking screw and the guide means provided on the head is formed by an arc-shaped shoulder on the outer side surfaces of the fork-shaped part. The invention also concerns an ancillary and an element for fixing such a system.

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Saint Maur, France

Gerard M Vanacker