Nucleus prosthesis, the insertion device therefor and the method of fitting same

摘要

A device ( 3 ) used to fit a nucleus prosthesis made up of: a deformable elastic nucleus prosthesis ( 1 ) which can adapt to the shape of intervertebral cavities, the prosthesis consisting of two parts, namely a male part ( 11 ) and a female part ( 12 ); and an insertion assembly ( 2 ) which is connected to the nucleus prosthesis ( 1 ). The elastic deformation of the nucleus prosthesis ( 1 ) makes it possible for the prosthesis to be inserted into the intervertebral cavity. The prosthesis is inserted using the elasticity thereof and the insertion means ( 2 ) which form part of the device ( 3 ) before insertion, but which can be subsequently removed.