Patent ID: 9144440
Filing Date: 2015-09-29
Classification: A61B

Abstract:
1. A vertebral osteosynthesis equipment comprising: at least one rigid connecting bar configured to connect several vertebrae; first bone anchoring members and first connecting parts wherein the first bone anchoring members anchor the connecting bar to the vertebrae and the first connecting parts connect the connecting bar to the bone anchoring members, such that the connecting bar is immobilized; second bone anchoring members and second connecting parts wherein the second bone anchoring members anchor the connecting bar to the vertebrae and the second connecting parts connect the connecting bar to the bone anchoring members, such that the connecting bar is configured to slide; each second connecting part comprises a receiving conduit through which the connecting bar is received, slidingly, and comprises at least one contact member therein forming a contact interface between said each second connecting part and said connecting bar; each second bone anchoring member is in the form of a flexible ligament configured to engage around a lamina or an apophysis of a vertebra of the several vertebrae; said each second connecting part comprises a conduit receiving said ligament and at least one screw configured to lock said ligament in the conduit, such that the ligament is maintained under tension; each at least one contact member comprising at least one rotating part mounted in said each second connecting part, said each at least one contact member in point contact with said connecting bar; and said each at least one contact member includes a series of beads supported by an annular cage placed coaxially to the conduit comprised by said each second connecting part for the engagement of the connecting bar.