Patent ID: 7048718

Claim:
A winged injection needle comprising: a needle tube for puncturing having a lumen, a base end, a terminus, a base end side and a forward end side opposite said base end side, a hub for retaining the base end of the needle tube, a hollow needle-housing member having left and right outer faces, a pair of flexible wings projectingly formed on the left and right outer faces of the hollow needle-housing member, and a guide tube joined to the hub, and wherein: (1) the hub is formed to have an arced curved shape including an upper part in the axial direction, wherein said upper part is formed from a middle part forming a maximum diameter in the axial direction and two side parts forming diameters gradually reduced from the maximum diameter, (2) the hollow needle-housing member is formed from a flexible material; (3) the hollow-needle-housing member has at least two expanded parts each formed with an inner surface and an outer surface corresponding to the inner surface expanding radially outward, wherein the expanded parts can house therein at least one part of an upper part of the hub; and (4) the two expanded parts are spaced via a reduced diameter part, wherein the reduced diameter part has a reduced inner and outer diameter.