Medical apparatus and instruments, namely, medical electrodes; diagnostic apparatus for medical purposes, namely, medical instruments for cardiovascular diagnosis; ultrasonic diagnostic apparatus for medical purposes; ultrasonic devices and parts thereof for medical use, namely, ultrasonic therapy machines and apparatus; Roentgen apparatus for medical purposes, namely, X-ray apparatus with image resolution in the micrometer and submicrometer/nanometer range; galvanic therapeutic appliances, namely, hi-volt pulsed galvanic devices; radiological apparatus for medical purposes