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近年来临床要求终止妊娠10周以上的孕妇呈上升趋势,而妊娠10～14周子宫较大、较软,负压吸引术操作困难,钳刮术难度大,风险高,易造成大出血、子宫损伤、流产不全等并发症,且羊水少,羊膜腔穿刺成功率低,宫颈未成熟时易发生软产道损伤。已往我们多采用米非司酮配伍米索前列醇终止10～14周妊娠,但完全流产率<80%。有报道将一次性导尿管应用于宫腔镜术前宫颈管准备中〔1〕,且获得了良好效果。笔者于2010年1月至2011年6月采用一次性导尿管宫颈扩
In recent years, the clinical requirements of pregnant women who have terminated pregnancy more than 10 weeks are on the rise. However, the uterus is larger and softer during 10-14 weeks of gestation. It is difficult to operate with negative pressure aspiration, and it is very difficult to clamp and cure patients with high risk of hemorrhage and uterine injury , Abortion and other complications, and less amniotic fluid, low success rate of amniocentesis, cervical immature prone to soft birth canal injury. In the past we use mifepristone and misoprostol to terminate 10-14 weeks of pregnancy, but the complete abortion rate <80%. There are reports of disposable catheters used in hysteroscopic cervical canal preparation [1], and obtained good results. The author in January 2010 to June 2011 disposable catheter cervical expansion