To prevent a coating agent applied to the surface of a needle tube from being infiltrated into the clearance between the needle tube and a needle hub.A device comprises a needle tube (5) that has a needle tip (5A) capable of puncturing a living body and that is coated with a coating agent on the surface of a tip-end portion on the side of the needle tip (5A) and a needle hub (6) adapted to hold the needle tube (5) in a state where the needle tip (5A) of the needle tube (5) is protruded. The needle hub (6) has a through-hole (21) through which the needle tube (5) is inserted, and a discharge hole (23) extending from the through-hole (21) to the outer surface of the needle hub (6) and adapted to discharge the coating agent infiltrated into the through-hole (21).
