The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 2012
Filed:
Nov. 19, 2009
Dae Sik Lee, Daejeon, KR;
Hyun Woo Song, Daejeon, KR;
Moon Youn Jung, Daejeon, KR;
Seon Hee Park, Daejeon, KR;
Dae Sik Lee, Daejeon, KR;
Hyun Woo Song, Daejeon, KR;
Moon Youn Jung, Daejeon, KR;
Seon Hee Park, Daejeon, KR;
Electronics and Telecommunications Research, Daejeon, KR;
Abstract
Provided is a method of manufacturing a hollow microneedle structure. The method includes forming an injection mold having a through hole, filling the injection mold with a photoresist formed of a viscous material, and extruding the photoresist from the injection mold through the through hole, solidifying the extruded photoresist to form a needle-type photoresist structure, forming a seed layer on the surface of the photoresist structure, forming a metal plated layer on the seed layer, inclining an end tip of the photoresist structure having the metal plated layer, and removing the photoresist from the metal plated layer to form a hollow. Thus, the hollow microneedle structure can be manufactured to have such diameter, length, hardness, and inclination angle as to minimize pain. The hollow microneedle structure can be combined with an apparatus for detecting a biomaterial or injecting cosmetic substances or medicines, and variously applied.