Connectable positioning system for the firm fixation without play to the human skull

摘要

The positioning apparatus has a holder (31) which is secured to the skull, supporting a base (4) with a manually-operated linear drive having a linear guide receiving the therapeutic ir diagnostic instrument (12). A manually positioned ball joint (3) is inserted between the base and the linear drive and secured via a clamp mechanism, with the longitudinal axis of the instrument offset sidewards relative to the axis of the linear guide and the ball joint, to allow the working end of the instrument to be viewed, e.g via a microscope.