Patent ID: 11285308

Abstract:
The present invention relates to a microstructure including a biocompatible polymer or an adhesive and to a method for manufacturing the same. The present inventors optimized the aspect ratio according to the type of each microstructure, thereby ensuring the optimal tip angle and the diameter range for skin penetration. Especially, the B-type to D-type microstructures of the present invention minimize the penetration resistance due to skin elasticity at the time of skin attachment, thereby increasing the penetration rate of the structures (60% or higher) and the absorption rate of useful ingredients into the skin. In addition, the D-type microstructure of the present invention maximizes the mechanical strength of the structure by applying a triple structure, and thus can easily penetrate the skin. When the plurality of microstructures are arranged in a hexagonal arrangement type, a uniform pressure can be transmitted to the whole microstructures on the skin.