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多層浸透デバイス
专利权人:
オスモティカ・ケレスケデルミ・エス・スゾルガルタト・ケイエフティ
发明人:
ファオウル,ホアキーナ,マヨルガ,ホルヘ
申请号:
JP2007007536
公开号:
JP5059421B2
申请日:
2007.01.17
申请国别(地区):
JP
年份:
2012
代理人:
摘要:
The present invention provides a simple and improved multi-layered osmotic device ( 1 ) that is capable of delivering a first active agent in an outer lamina ( 2 ) to one environment of use and a second active agent in the core ( 5 ) to another environment of use. Particular embodiments of the invention provide osmotic devices in which the first and second active agents are similar or dissimilar. An erodible polymer coat ( 3 ) between an internal semipermeable membrane ( 4 ) and a second active agent-containing external coat ( 2 ) comprises poly(vinylpyrrolidone)-(vinyl acetate) copolymer. This particular erodible polymer results in an improved multi-layered osmotic device possessing advantages over related devices known in the art. The active agent in the core ( 5 ) is delivered through a pore ( 6 ) containing an erodible plug ( 7 ). The osmotic device ( 1 ) can be coated by a final finish coat ( 8 ).
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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