Abstract: A device (1) for intersomatic stabilization using a mini-invasive approach, which is designed to be inserted between two contiguous vertebrae to keep them at a distance from one another and has a substantially cylindrical body (2) extending along a longitudinal axis (A), and a thread (5) external to and fixed to the body (2) itself; a head end (4) having a cross section that increases along the axis (A) is provided at one end of the body (2) for dilating the intervertebral space as advance of the end (4) itself in the intervertebral space proceeds until there is created with the thread (5) a seat for the subsequent advance of the device (1) having stabilizing function.