A puller is provided with a number of advantages. The light striking the projection device is focused onto a diffusing screen. A rod is attached to the body and is able to provide a pivot axis for the head portion. The apparatus can further include a data controller configured to communicate output data to a user. The circuitry carried within the case is operable for generating electrical stimulation pulses and capable of electrically driving the generated electrical stimulation pulses from the pulse generator through the lead extending up to the anatomical furthest distance.