Device for carrying out the injection, including a housing having a, a shaft extending between a lower end portion including a bottom surface having an upper end, a needle opening, and the upper and lower ends. The device includes a needle disposed in the housing so as to operate between the extended position and the retracted position.注射を実施するためのデバイスは、上端部と、注射針開口部を有する底表面を含む下端部と、上端部と下端部との間に延在する軸と、を有するハウジングを含む。該デバイスは、後退位置と延長位置との間で動作するようにハウジング内に配置される注射針を含む。