Microneedle patch, micro needle system and method of fabricating the same

Abstract

There is provided a microneedle patch. The microneedle patch includes: a plurality of microneedles each having an upper end portion and a base portion and which are individualized from each other; and a base layer that is formed of a water-soluble material and includes linear portions that pass the base portions of the microneedles neighboring each other among the plurality of microneedles and are joined to the base portions of the microneedles neighboring each other.

What is claimed is: 
     
         1 . A microneedle patch comprising:
 a plurality of microneedles each having an upper end portion and a base portion and which are individualized from each other; and   a base layer that is formed of a water-soluble material and includes linear portions that pass the base portions of the microneedles neighboring each other among the plurality of microneedles and are joined to the base portions of the microneedles neighboring each other.   
     
     
         2 . The microneedle patch of  claim 1 , wherein:
 the upper end portions of the plurality of microneedles each include a sharp end portion; and   a maximum diameter of the base portion is larger than a diameter of the upper end portion.   
     
     
         3 . The microneedle patch of  claim 1 , wherein the plurality of microneedles is fixed to a region where at least two or more linear portions among the linear portions intersect. 
     
     
         4 . The microneedle patch of  claim 1 , wherein the base layer has a mesh structure or a nonwoven structure. 
     
     
         5 . The microneedle patch of  claim 1 , wherein pharmaceutically, medically, or cosmetically effective materials are dissolved or dispersed in the plurality of microneedles or are coated on the plurality of microneedles. 
     
     
         6 . The microneedle patch of  claim 1 , wherein:
 the plurality of microneedles further includes, in at least a portion thereof, a plurality of kinds of effective materials;   a first group of microneedles among the plurality of microneedles includes a first effective material among the plurality of kinds of effective materials; and   a second group of microneedles different from the first group includes a second effective material among the plurality of kinds of effective materials.   
     
     
         7 . The microneedle patch of  claim 1 , wherein, in a case in which the microneedle patch is attached to a target region and moisture is provided to the microneedle patch, the base layer degrades and is removed, and the microneedles remain in a region below the target region.