随着四化的进程,关于人口的增长问题,就更迫切的要求有计划的生育。目前的女性绝育方法,仍是以输卵管结扎为主,效果可靠。但此种手术,不易被妇女所接受,她们迫切需要一种无痛苦,不开刀又安全有效的避孕方法。为此,探索一种经阴道不开刀的避孕方法是非常必要的。 With the progress of the four modernizations, there is an even more pressing demand for planned childbirth on the issue of population growth. The current method of female sterilization, tubal ligation is still based, the effect is reliable. However, such surgeries are not easily accepted by women and they are in desperate need of a painless, safe and effective contraceptive method. To this end, to explore a vaginal surgery without contraceptive method is very necessary.