Needle and medicament injection device

A needle tip of the puncture needle tube causes securely positioned in the skin upper layer to the skin, injected drug leaking to the outside. A BACKGROUND OF THE INVENTION needle 1 comprises a needle tube 2 of 26~33G with needle tip, a hub 3 for holding the needle tube 2, provided around the needle tube 2, the needle protruding surface 4b of the needle tip of the needle tube 2 is projected and an adjustment unit 4 with. Then, the needle protruding surface 4b of the adjustment unit 4, the distance S to the circumferential surface of the needle tube 2 is formed to be in the range of 0.3~1.4mm from the periphery. .FIELD 1