Multi-needle module for skin treatment

A multi-needle module for skin treatment, which is connected to a syringe and mounted on an injection device and comprises:

• an upper body, a lower body, a connection part, and needles, wherein
• the upper body is open on front and rear sides, and includes a side wall, a plurality of needle pipes formed therein, through which the needles penetrates, and an insertion end formed on an outer periphery of the rear opening,
• the lower body includes an opening formed on a front side, side walls formed so as to define a space inside, an inlet hole formed in the bottom, an injection port formed on a rear side, through which a chemical solution is injected, a stepped portion formed on an inner peripheral surface of the front opening, and one or more injection holes formed on the rear side,
• the insertion end of the upper body is fitted into the fitting groove of the lower body, so that the insertion end is in close contact with the stepped portion,
• the connection part is inserted between the upper body and the lower body, and includes a plurality of insertion holders and needle holes formed on a front side,
• the front side of the connection part and a rear end of the upper body are spaced apart from each other to define a receiving space, and
• adhesive F injected into the injection holes is filled in the receiving space to adhesively fix the upper body, the lower body, the connection part, and the needles into an integrated structure at once.