Patent ID: 8956545
Filing Date: 2015-02-17
Classification: A61B,A61F,A61K,A61M,B29C,B29D,B29L,B81B,B81C,G01N

Abstract:
1. A method for manufacturing a hollow microneedle having a varied appearance, comprising: coating a solution of a viscous material on a surface of a substrate; bringing the solution of the viscous material into contact with a frame; lifting the substrate, the frame, or the substrate and the frame for the contacted frame and substrate to be spaced apart from each other to thereby manufacture a solid microstructure; obtaining a bent microneedle structure by sending wind of 5 μm/s to 10 μm/s in a specific direction before the solid microstructure which is manufactured in said lifting the substrate, the frame, or the substrate and the frame is hardened; depositing metal on the bent microneedle structure; protecting an upper portion of the metal-deposited microneedle structure, and plating metal on a surface of the microneedle structure; removing the microneedle structure to obtain a hollow microneedle, wherein a coating thickness of the viscous material, a diameter of the frame, a temperature of the viscous material, a lifting speed, a plating thickness, or combination thereof is adjusted.