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本文对13例使用“美尔伊”避孕针的妇女进行用药前后的纵向观察。实验结果表明:“美尔伊“避孕针的避孕原理是多环节的,其中影响H—P—O轴可以显著抑制排卵是本针剂的主要避孕作用,此外宫颈粘液的变化使精子不易穿透,子宫内膜变化使孕卵不同步而影响着床也是此针的避孕环节。通过9例子宫内膜电镜检查,就用避孕药对象而言,核仁管道系统(NCS)的出现可以作为排卵的特征。本文认为对月注射法的失败主要是因为注射日期离引经日期太远,不能抑制排卵所致。
In this paper, 13 cases of women using “Meryl” contraceptives were observed longitudinally before and after treatment. The experimental results show that the contraceptive principle of “Merdeyi” is multi-link, in which the influence of H-P-O axis can significantly inhibit ovulation is the main contraception of the injection. In addition, the changes of cervical mucus make the sperm difficult to penetrate, Endometrial changes so that the egg is not synchronized affect the implantation of the needle is also the contraception of this needle. By 9 cases of endometrial examination, in terms of contraceptives, the appearance of nucleolus ductal system (NCS) can be used as ovulation characteristics. This article believes that the failure of the monthly injection method is mainly because the injection date is too far from the cited date, can not inhibit ovulation caused.