Yong Sun Yoon;Moon Youn Jung;Dae Sik Lee;Seon Hee Park
发明人:
Dae Sik Lee,Yong Sun Yoon,Moon Youn Jung,Seon Hee Park
申请号：
US12635480
公开号：
US08402629B2
申请日:
2009.12.10
申请国别(地区):
US
年份:
2013
代理人:
摘要：
Provided is a method of manufacturing a hollow microneedle structure. The method includes coating a hollow core having a predetermined section and being long in a lengthwise direction with a coating solution, and solidifying the coating solution to form a coating layer, depositing a metal seed layer on the coating layer, plating the seed metal layer with a metal to form a plated layer, cutting the hollow core having the plated layer at an inclination angle with respect to the lengthwise direction for form a surface inclination, and removing the hollow core and the coating layer to form a hollow microneedle structure. Thus, the hollow microneedle structure can be manufactured to have such diameter, length, hardness, and inclination angle as to minimize pain. By use of the hollow core, the microneedle structure can have vertical microneedles with a uniform inner diameter.
