Ldr Medical

Ldr Medical, S.a.s.

Thierry Dufour

Jean Huppert

Patrick Tropiano

Christian Louis

Jacques Beaurain

Jean-Marc Vital

Jean-Marc Fuentes

Jacques Beaurin

Intervertebral arthrodesis for insertion in an intervertebral space separating opposite faces of two adjacent vertebrae has a ring shaped intervertebral cage having a bar that extends perpendicular to the axis of the spine. The bar has a height less than the rest of the cage. A surface of the cage contacting the vertebrae has an undulating shape for limiting sliding of the cage in a plane parallel to the vertebrae faces.

Vertebral cage device with modular fixation

The present invention relates to an intervertebral disk prosthesis comprising at least three parts including a first plate, referred to as the upper plate (), a second plate, referred to as the lower plate (), and a core (), the upper surface of the core () being in contact with at least part () of the lower surface of the upper plate () and the lower surface of the core () being in contact with at least part of the upper surface of the lower plate (), and the lower plate () being movable at least with respect to the core (), characterized in that there are cooperation means between the lower to plate () and the core (), so as to limit or eliminate translation movements of the core () with respect to the lower plate () along an axis substantially parallel to the lower plate (), and to limit or eliminate rotation movements of the core () with respect to the lower plate (), around an axis substantially perpendicular to the lower plate (), the planes passing through the upper () is and lower () plates forming a substantially constant angle.

Intervertebral disc prosthesis

The present invention relates to an intervertebral disk prosthesis comprising at least three parts including a first plate, referred to as the upper plate (), a second plate, referred to as the lower plate (), and a core (), the upper surface of the core () being in contact with at least part () of the lower surface of the upper plate () and the lower surface of the core () being in contact with at least part of the upper surface of the lower plate (), and the lower plate () being movable at least with respect to the core (), characterised in that there are cooperation means between the lower to plate () and the core (), so as to limit or eliminate translation movements of the core () with respect to the lower plate () along an axis substantially parallel to the lower plate (), and to limit or eliminate rotation movements of the core () with respect to the lower plate (), around an axis substantially perpendicular to the lower plate (), the planes passing through the upper () is and lower () plates forming a substantially constant angle.

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Olivet, France

Thierry Dufour