This equipment is an instrument used to inject drugs such as local anesthesia and includes a cartridge syringe. It is also composed of a main body with an operation part, an infusion kit attachment part, etc. and an infusion kit, and is an equipment that continuously injects anesthetic solution at a constant speed. It is an electric syringe that mechanizes the existing dental syringe method of injecting with hand power to inject with a powerful up and down motor.It is a device that plugs lidocaine (ampoule) into the handpiece, attaches it to the main body cartridge, and injects anesthesia into the patient with the action of the ampoule rod depending on whether it is operated or not.