The drip tube 10 includes a housing 11, a nozzle 22 that has an inflow hole 22 a through which liquid can flow into the housing 11 and drops liquid from the tip 22 b of the inflow hole 22 a, and an inflow hole 22 a of the nozzle 22. A needle-like portion 24 that is held in a state where at least the distal end portion 24b is positioned downstream of the distal end portion 22b in the dropping direction.点滴筒10は、筐体11と、筐体11内に液体を流入可能な流入孔22aを有して流入孔22aの先端部22bから液体を滴下させるノズル22と、ノズル22の流入孔22aの先端部22bよりも滴下方向下流側において少なくとも先端部24bが位置した状態で保持される針状部24と、を備える。