Microneedle structure for efficient skin perforation

Abstract

The present invention relates to a soluble microneedle and, more particularly, to a microneedle and a microneedle patch comprising the same, wherein the microneedle is used to perforate skin, and themicroneedle, when inserted through the perforated skin, is then dissolved, thereby administering the target material from inside the microneedle into the skin. The microneedle according to the presentinvention, when used, has appropriate levels of mechanical strength, viscosity, and hardness and can be easily inserted into skin without undergoing shape change, for example, bending or breaking, thereby enabling efficient skin perforation. In addition, as the microneedle according to the present invention is dissolved through the perforated skin, the target material penetrates the skin at an excellent ratio. Accordingly, there is no need to apply strong force, and the target material can be effectively delivered into the skin regardless of which part of the microneedle contains the target material.

Description

technical field [0001] This application claims priority based on Korean Patent Application No. 10-2016-0041577 filed on April 5, 2016, and all the contents disclosed in the specification and drawings of this application are incorporated into this application. [0002] The present invention relates to a dissolvable microneedle. After the skin is perforated by the microneedle, when the microneedle is inserted through the perforated skin, the microneedle dissolves, thereby injecting the target substance in the microneedle into the skin. Background technique [0003] Various methods for efficiently transdermally administering a target substance have been studied. However, the skin surface layer has a barrier function to prevent impurities from entering the body, so it is difficult to absorb a sufficient amount of the target substance to exert the desired effect, and it is very difficult to accurately supply the target substance to a designated part of the skin surface layer. In...

AI Technical Summary

Problems solved by technology

[0005] The characteristic of microneedles is that they do not feel pain and do not bleed even when inserted into the skin. However, it is very difficult to manufacture microneedles that do not break or bend while maintaining such characteristics.

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