Skin superficial injector

A skin superficial injector relates to the technical field of medical instruments and comprises an injection needle cylinder, an injection needle, an injection push rod and a piston mounted in the injection needle cylinder. A needle joint is arranged at the left end of the injection needle cylinder, and the injection needle is mounted on the needle joint at the left end of the injection needle cylinder; the left end of the injection push rod is fixedly connected with the piston, and the right end of the injection push rod rightwards extends out of a right end cylinder opening of the injection needle cylinder; the injection needle is composed of a needle left section and a needle right section, the whole injection needle is in a two-fold-line shape, and the included angle between the needle left section and the needle right section is 140-170 degrees; the needle connector is provided with a protective sleeve which can stretch out and draw back leftwards and rightwards, the protective sleeve is a moldable corru