The Automatic Hyoidermic Syringe -- (Top) The "Ampin" ... (Middle) the protective glass covering around the syringe needle is broken off. (Bottom) the needle can then be quickly inserted i to the arm. Through the clothes is necessary. When the needle is deep Enou the neck of the Ampulla is broken, just as you would break a matchstick. The injection then flows into the arm under the pressure of the compressed air in the top of the Ampulla. Hundreds of Thousands of "Ampins" are being produced in Sweden for the civil defence. This Spanish invention is an automatic syringe that can be used by anyone. In Sweden the syringes are filled with atropin, for used against nerve-gas, but they can of course be used for other kinds of injections too. January 22, 1955. (Photo by Paul Popper Ltd.).