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近10年,从各种已发表的研究资料表明:发展释放甾体的阴道避孕环,通过其对宫颈粘液或宫内膜的作用以抑制排卵并抗生育是可能的。本文从激素,月经类型,代谢以及中断原因等方面作一探讨。材料和方法:采用含17B-雌二醇(E_2)和18甲炔诺酮组成的圆柱状三层硅胶阴道避孕环。外径61mm,厚9.5mm,中层充填类固醇。在月经周期第5天置环于阴道内,放置3周。然后取出一周,以撤退出血,以后按放置3周,取出一周的方案取
Nearly 10 years from a variety of published research data show that: the development of steroid-releasing vaginal rings, through its role in cervical mucus or endometrial inhibition of ovulation and anti-fertility is possible. This article from hormone, menstrual type, metabolism and the reasons for the interruption to make a discussion. MATERIALS AND METHODS: A cylindrical three-layer silicone vaginal ring consisting of 17B-estradiol (E_2) and 18 norethindrone was used. Outer diameter 61mm, thickness 9.5mm, middle filling steroids. On the 5th day of the menstrual cycle in the vagina, placed for 3 weeks. Then remove a week to withdraw bleeding, press after 3 weeks, remove the program for a week to take