Pemphigus vulgaris is an autoimmune disease with a possible fatality of the skin and mucosae which is induced by an antibody against desmoglein 3. The interface combines tactile representations of graphical elements, non-visual cues, and a hardware element to allow the effective placement and interconnection of graphic elements using design software. The conductive stud is coupled to a main surface of the insulated metal substrate, and electrically connected with the inverter output stage. The control apparatus includes a signal generator configured to generate, on the basis of the extracted or ascertained data provided for operation of the motor, at least one control signal for the motor, such as a commanded direction of rotation. The system allows for blind targeting of one or more landmarks. An actively oscillatably changeable sealed fluid volume can be in fluid communication with the cerebrospinal conduit.