CPC A61M 5/3286 (2013.01) [B81B 1/008 (2013.01); B81C 1/00111 (2013.01); A61M 2207/00 (2013.01); B81B 2201/055 (2013.01); B81B 2203/0361 (2013.01); B81C 2201/0197 (2013.01)] | 19 Claims |
1. A method for manufacturing a microneedle having a coating layer on a surface of a tip, the method comprising:
dripping a swellable polymer solution on the tip of the microneedle to form the coating layer thereon;
wherein the method further comprises, before forming the coating layer, coating a sacrificial layer solution on a surface of the tip of the microneedle to form a sacrificial layer thereon,
wherein forming the coating layer includes dripping the swellable polymer solution on the sacrificial layer to form the coating layer thereon,
wherein the sacrificial layer has been dissolved in water before the swellable polymer based coating layer has been dissolved in water.
|