Intervertebral disc prosthesis

The invention claims an intervertebral disc prosthesis which comprises at least two plate and it is first and second plate through at least one board with curved surface it is winding joint each other is hinged with the each panel comprises a known as a contact surface of the and the false body is embedded into the one of the lumbar vertebrae bone fracture plate contact each plate of the contact surface of it is comprised of geometrical center g1 g2 the geometric centre and at least two line located on plate zhou diameter which is corresponding to the characteristics of equal distance wherein the plate the geometric centre of the g1 g2 is not aligned with the vertical plate the geometric centre of the g1 g2 the offset d plate caused by the edge of the at least one is vertical to spine of vertical axis direction displacement