10 Image presentation apparatus for medical purposes; namely, electromagnetic medical diagnostic imaging apparatus; neurosurgical instruments; medical robots, namely, surgical robots, and parts therefore; surgical devices and instruments, namely, control boxes, instrument adapters, tool holders, endoscope adapters, microscope adapters and connection cables, all for medical applications, namely, neurosurgical, orthopedic and surgical applications, and for ear, nose and throat surgery; medical tomographs, namely, nuclear spin tomographs and computed tomography (CT) apparatus; instruments and apparatus for characterizing structures in patient data sets produced using medical image forming apparatus, namely, medical image processors; medical apparatus, namely, marking pens marking aids for indicating contours of anatomical structures in image displays of sectional patient images, and for automatically recognizing complete structures on the basis of indicated individual contours; medical apparatus system for precisely positioning patients for radiotherapeutic and neurosurgical purposes comprised of medical collimators, infrared cameras and video camera and tripods and mounting devices therefor, patient marking pens for use in surgical procedures, blood pressure monitors, isocenter phantoms, calibration phantoms, patient trays, head holders and head adaptors, vacuum pumps, vacuum cushions, referencing stars, ultrasound phantoms, ultrasound device adaptors, x-ray registration kits comprised of medical x-ray films and medical x-ray device, and medical computed tomography apparatus, all of the foregoing sold as a unit; intra-operative, image-guided localization systems for medical and surgical purposes, namely, a breast localization wire and parts and fittings therefor; medical apparatus systems for software-controlled precision treatment in neurosurgery, orthopedics, radiotherapy and in ear, nose, and throat surgery, namely, systems comprised of tissue localization wires, stereotactic and neurosurgical arcs, biopsy kits comprised of needles and test tubes, tissue fixation device adaptors, instrument calibration matrixes and instrument fixation rings, planning stations in the nature of bedside surgery tables, computers, couchmounts, collimators, medical radiation target positioners, film holders, mask systems comprised of respiratory masks and textile headgear specially adapted for use with medical ventilator mask interfaces, couch stabilizers, couch adaptors, medial radiation apparatus, linear accelerators, proton beam treatment stations consisting of gantries, microscope adaptors, surgical fixation pins, head and neck immobilization devices; medical apparatus, namely, sensors for medical use to be worn by a human to gather and register human biometric data and also including marking pens for use in surgical procedures; light pointers for medical surgical use; laser light pointers for medical surgical use; infrared light pointers for medical surgical use; reference markers and reference marker arrangements for medical surgical use attached to surgical medical and surgical instruments or attached to patients for referencing; laser pointing device for medical surgical use