The invention relates to a hypodermic injection system having a direct-drive motor for moving a ram towards an injectate chamber for discharging injectate therein through a discharge orifice. The system can have an injection head attached to a housing having an injectate chamber for holding injectate to be injected, a remote discharge device with a control apparatus or the structure for holding a cartridge containing injectate. The injectate supply could be a bottle, a remote reservoir or a cartridge. An injection head can have a nose actuator for enabling an injection only if the nose actuator has engaged the body to be injected. A clamping device clamps the body to be injected. Control is effected through a microprocessor to which the electrically-operated parts of the invention are attached. Control and output signals are readable through an electronic display.
