Abstract: Disclosed is a functional drug injection module including: an injection unit including a body that is elongated, keeps a functional drug therein, has an outlet formed at a front end thereof, and is open at a rear end thereof, and a piston that is inserted in the body through the rear end of the body and discharges the functional drug by longitudinally sliding; a cover unit at least partially formed like a projection, inserted in the outlet, and adjust opening/closing of the outlet by selectively separating; and a sealing unit surrounding the injection unit and the cover unit, having a first crease formed in a longitudinal direction of the injection unit, and separating from the injection unit together with the cover unit by being divided along the first crease by external force.

Abstract: The present invention discloses a drug injection module including: a cylinder which is formed long, has a storage space capable of storing a drug therein, has a discharge port for discharging the drug formed at a front end, and has an open rear end; a piston that is inserted into the storage space through the rear end of the cylinder and slides in a longitudinal direction to discharge the drug; and a slip-assisting unit that is at least partially formed to protrude or depress from an outer surface of the cylinder to form an uneven cross-sectional shape, and generates variations in pressure acting on the surface when coming into contact with a user's body, in which the slip-assisting unit prevents the pressure of the human body acting along the periphery from becoming uniform and facilitates a slip in a state in which the cylinder is inserted into the human body.

Abstract: Disclosed is a functional drug injection module including: an injection unit including a body that is elongated, keeps a functional drug therein, has an outlet formed at a front end thereof, and is open at a rear end thereof, and a piston that is inserted in the body through the rear end of the body and discharges the functional drug by longitudinally sliding; a cover unit at least partially formed like a projection, inserted in the outlet, and adjust opening/closing of the outlet by selectively separating; and a sealing unit surrounding the injection unit and the cover unit, having a first crease formed in a longitudinal direction of the injection unit, and separating from the injection unit together with the cover unit by being divided along the first crease by external force.