1992年1～12月,我们采用羊膜腔内注射利凡诺施行晚期妊娠引产(孕28～42周,年龄为18～45岁,胎次为1～4胎),取得了满意效果。1.方法:术前常规准备后,取宫底与耻骨联合之间肢体侧为穿刺点,用20～21号腰穿针垂直刺入腹壁,当有落空感时抽出针芯,接5ml空针,抽出 From January to December 1992, we used amniotic injection of Rivanol to induce late pregnancy induced abortion (pregnant 28-42 weeks, aged from 18 to 45 years, parity 1 to 4 births), and achieved satisfactory results. 1. Methods: preoperative routine preparation, take the uterus and pubic symphysis between the limb side of the puncture point, with 20 to 21 lumbar puncture vertical piercing the abdominal wall, when a sense of frustration when the needle out, then 5ml empty needle , Pull out