Injector for small needle autologous repair cosmetic method

Abstract

The invention discloses an injector for a small needle autologous repair cosmetic method, which comprises a needle cylinder, a piston, a push rod and an injection needle head; one end of the push rod is arranged in the needle cylinder; the piston is mounted at the end, located in the needle cylinder, of the push rod and driven by the push rod to move back and forth in the needle cylinder; a mounting part used for the injection needle head to penetrate is arranged at the end, corresponding to the piston, of the needle cylinder; the injector is characterized in that a mounting groove is formed in the piston; an elastic clamping protrusion is arranged on the inner wall of the mounting groove; a clamping groove is formed in the position, corresponding to the elastic clamping protrusion on the mounting groove, of the push rod; and the elastic clamping protrusion is located in the clamping groove, so that the push rod and the piston can be fixedly mounted and connected.

Description

technical field [0001] The invention belongs to the technical field of cosmetic medical devices, and in particular relates to a syringe used in a small needle self-repair cosmetic method. Background technique [0002] In aging skin tissue, under the dual effects of age and environment, the collagen fibers and elastic fibers of the skin are gradually disintegrating and breaking, and the subcutaneous fat cells are also slowly shrinking and shriveling. The aging of the underlying tissue causes the dermis to lose its support, and the skin begins to loosen and prolapse, causing wrinkles, collapses, and gullies. The facial contour also changes from a tight and smooth "parabola" to an uneven "sawtooth line". At present, there are many methods in the beauty industry to delay skin aging, such as simply filling collagen, thread carving, skin lifting and other methods. The content of injection products can be roughly divided into two categories: one is absorbable hyaluronic acid, colla...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to aim at the above-mentioned existing syringe, the defect that the assembly connection between the push rod head and the piston is difficult in the assembly process, to provide a syringe for the small needle autologous repair and cosmetic method, and to change the push rod and the piston fitting part into a straight one. Rod, use the protrusion in the installation groove of the piston to cooperate with the groove on the piston rod to realize the assembly and connection of the push rod and the piston. At the same time, since the syringe is disposable, there is no need to consider the separation of the piston rod and the push rod. After a successful assembly use, reducing the difficulty of assembly

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