A neuro-surgical clamp device that has a semi-circular track that partially circles the patients head. A C-clamp clamps securing to the patients head, with the semi-circular track clamped to the C-clamp with a vice-clamp with at least one moving jaw. The C-clamp is coupled to a base bar though a series of three arms and four rotatable joints so that the semi-circular track can be tilted and rotated to any angle with respect to the patients head. Instrument attaches can be clamped anywhere along the semi-circular track.
