The invention is a single use delivery device capable of delivery of an agent (e.g. vaccine drug medicament etc.) in a controlled manner and without requiring specialized skill in administering delivery of such agent. The delivery device is configured to be filled on site and in the field with a dose of an agent while remaining sterile and preventing the potential for contamination during the filling process. The delivery device is configured to be fitted with various types of administering components including but not limited to needles nozzles for producing spray or droplets and the like. The delivery device is further configured to be rendered incapable of reuse followings its intended use of delivering the fluid agent to a patient thereby preventing reuse of the device and reducing the risk of the spreading blood borne diseases through reuse.
