The nucleus pulposus implant according to the present invention, arranged between two adjacent vertebrae Va, Vb of a spinal segment Sr, constitutes an intervertebral bracing device which absorbs shocks and which ensures the mobility of the functional unit formed by said vertebrae of a spinal column, said nucleus pulposus implant being characterized in that it comprises a filling element (2) having at least one continuous filament (50, 51) which is arranged inside a nucleus pulposus space Es, obtained after nucleotomy of the intervertebral disk Di, and which follows a ring-shaped profile, and of which the stack of spirals (55) delimits an inner space (52).
