During the development of the injector child psychology about the fear of medical injection procedures was studied. The effective age periodization from 3 to 8, from 8 to 13 and for 13+ age is revealed and the appearance of the device is developed for each age group. This allowed reducing the emotional response to the injection. A “stamp” system was developed to enhance the effect of reducing the emotional response to the injection. Stamp pads with images of animals will be attached to the injector. Using an antiseptic substance with colored food dyes the images will be imprinted on the skin. This will allow disinfecting the injection area, in that way the procedure will be safer. In addition, the injector reduces the physical response to the injection because of unique construction. It is universal and therefore it is unique. It is ergonomic and suitable for people with hand weakness. In addition, it is portable (small), a transportation system of syringes and ampoules was developed