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RESEAU DE MICRO-AIGUILLES REVETU DE MEDICAMENT
专利权人:
LTD.;COSMED PHARMACEUTICAL CO.
发明人:
QUAN, YING-SHU,SAITO, MIO,YAMASHITA, HIROFUMI,KAMIYAMA, FUMIO
申请号:
CA3047543
公开号:
CA3047543A1
申请日:
2017.12.28
申请国别(地区):
CA
年份:
2018
代理人:
摘要:
Provided is a practical microneedle preparation which solves the problem that even if it is possible for a drug to be applied quantitatively onto a tip end portion of a microneedle, a drug residue is generated on the stratum corneum when the drug is actually used as a percutaneous absorption medication. In a microneedle array in which a needle length is at least equal to 350 µm and at most equal to 900 µm, the diameter of the apex of the needle tip end portion is at least equal to 20 µm and at most equal to 100 µm, which has a drug coat coating portion, and which has a bio-insoluble polymer as a base, a lower edge of the drug coating portion is at least 200 µm from a root of the needle.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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