您的位置: 首页 > 农业专利 > 详情页

유리체강 주사용 중공형 마이크로니들
专利权人:
INDUSTRY-ACADEMIC COOPERATION FOUNDATION; YONSEI UNIVERSITY
发明人:
JUNG, Hyung Il,정형일,LEE, Chang Yeol,이창열,LEE, Kwang,YOU, Yong Sung,유용성,LEE, Sung Ho,이성호
申请号:
KRKR2012/010254
公开号:
WO2013/081399A1
申请日:
2012.11.29
申请国别(地区):
WO
年份:
2013
代理人:
摘要:
The present invention provides a preparation method of a hollow microneedle for intravitreal injection comprising the following steps: (a) coating a viscous material solution on the surface of a substrate (b) bringing the viscous material solution into contact with a frame (c) lifting the substrate, the frame, or the substrate and the frame in such a way that the contact frame and the substrate are spaced from each other, thereby preparing a solid microstructure (d) depositing a metal on the solid microstructure (e) plating a metal on the metal-deposited solid microstructure (f) bevel cutting a tip portion of the metal-plated solid microstructure, wherein the bevel angle formed by the bevel cutting is 5-20 degrees and (g) removing the solid microstructure to obtain a hollow microstructure. The hollow microneedle for intravitreal injection of the present invention comprises a metal, and thus has the strength or force capable of passing through the sclera and the retina. The hollow microneedle for intravitreal injection of the present invention has an ultrahigh aspect ratio, and thus can minimize damage of the retina. The hollow microneedle for intravitreal injection of the present invention has an effective length sufficient for delivery of a drug to the center of the eyeball, and thus can enhance the efficacy of a drug. The hollow microneedle for intravitreal injection of the present invention is compatible with a normal syringe, and thus can be easily used.La présente invention concerne un procédé de préparation dune micro-aiguille creuse pour une injection intravitréenne, lequel procédé de préparation comprend les étapes suivantes consistant à : (a) revêtir la surface dun substrat dune solution de matière visqueuse (b) à amener la solution de matière visqueuse en contact avec un cadre (c) à soulever le substrat, le cadre, ou le substrat et le cadre dune manière telle que le cadre de contact et le substrat sont espacés lun de lautre, permettant ainsi de préparer
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充