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    • 4. 发明公开
    • MULTI-LAYERED GRADIENT VAGINAL RING
    • MEHRSCHICHTIGER VAGINALRING MIT GRADIENT
    • EP2456421A1
    • 2012-05-30
    • EP10714730.8
    • 2010-04-07
    • THE POPULATION COUNCIL, INC.
    • VARIANO, BruceSPECK, JeffreySALLENT, Maria, TeresaEVANS, Simone
    • A61K9/00A61K31/565
    • A61K9/0036A61K31/565A61K2300/00
    • Multi-layered vaginal rings 2 comprising silicone elastomers and pharmaceutically active ingredients are disclosed. The rings comprise a number of layers, at least one of which contains a pharmaceutically active ingredient, and each of which is a silicone elastomer. The multiple layers preferably are produced from these layers of different compositions, including an inner layer 4, a middle layer 5, and an outer layer 6. After extrusion and simultaneous curing, however, the ring 2 includes a contiguous body which comprises a continuous silicone body providing unimpeded diffusion of the pharmaceutically active ingredient from the inner layer (s) 4 to the outer layer (s) 6. Methods of producing these vaginal rings and of using them are also disclosed.
    • 公开了包含硅氧烷弹性体和药物活性成分的多层阴道环2。 环包括多个层,其中至少一个含有药物活性成分,并且其中每一层均为硅氧烷弹性体。 多层优选由不同组成的这些层制成,包括内层4,中间层5和外层6.然而,在挤压和同时固化之后,环2包括连续的主体,其包括连续的硅氧烷 身体提供药物活性成分从内层4到外层的无阻碍扩散。6.还公开了制备这些阴道环并使用它们的方法。
    • 6. 发明公开
    • Contraceptive membrane ring
    • EmpfängnisverhütenderMembranring。
    • EP0134671A1
    • 1985-03-20
    • EP84304889.3
    • 1984-07-18
    • THE POPULATION COUNCIL, INC.
    • Luukkainen, Tapani
    • A61F5/46
    • A61F6/08
    • @ This invention relates to a contraceptive membrane ring designed to cover the cervical os which comprises a flexible ring (18) having a top and bottom surface, a sperm impermeable flexible membrane (20) stretched across and attached to the bottom surface of the ring, a disposable flexible insert (22) resting on the sperm impermeable membrane made of an absorbent material having a diameter slightly larger than the inner diameter of the ring and impregnated with a spermicide and a flexible permeable cover (24) positioned over the insert and pressing against the inner circumference of the ring having a diameter approximately equal to the inner diameter of the ring (18).
    • 本发明涉及一种设计用于覆盖宫颈口的避孕膜环,其包括具有顶部和底部表面的柔性环(18),跨越并连接到环的底部表面的精子不渗透柔性膜(20), 一次性柔性插入物(22)搁置在由吸收材料制成的精子不透性膜上,该吸收材料的直径略大于环的内径,并且浸渍有杀精剂和柔性可渗透盖(24),其位于插入物上并压靠 环的内圆周的直径近似等于环(18)的内径。