Disclosed are medical devices for use in delivering a medical solution into the body of a patient, including: an elongated main body defining a reservoir for containing a medical solution； longitudinal tip extending axially and distally from the main body, the longitudinal tip defining a fluid path extending axially through the longitudinal tip and in fluid communication with the reservoir； and a gripping portion formed on an outer surface of the longitudinal tip, wherein the main body and longitudinal tip are made of glass, the gripping portion including at least three ribs integrally formed with the longitudinal tip and extending around a longitudinal axis of the longitudinal tip, and the gripping portion has an average roughness of 0.5 μm to 3 μm.
