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释放左旋18甲基炔诺酮(LNG)宫颈节育器(ICCD)是LNG宫内节育器(IUD)的改进。体积小,释放LNG与IUD相同(20μg/d),除易于放置和研究培训少外,还可用于小子宫及未产妇。研究此节育器置于颈管或官腔12个月间持续性卵巢滤泡的数量及对阴道出血、闭经的影响。
Release of Levonorgestrel 18 (LNG) Cervical IUD (ICCD) is an improvement of the LNG intrauterine device (IUD). Small size, the same release of LNG and IUD (20μg / d), in addition to easy to place and research training less, but also for small uterus and non-mothers. To study the contraceptive device placed in the neck or bureaucratic 12 months of persistent ovarian follicles and the number of vaginal bleeding, amenorrhea.