一次性宫颈扩张棒用于人工流产的吸宫术及钳刮术前扩张宫颈国内已有报道。除此之外,我院曾将一次性宫颈扩张棒用于孕14周～18周内需引产失败后扩张宫颈,避免二次用药,效果满意,报道如下。 1.临床材料:扩张棒系济南风星医疗器械厂生产。本组主要选用3号扩张棒,长度53mm,直径6.2mm,为一次性使用品。 2.方法:标准:中、晚期妊娠者经腹羊膜腔内注 Disposable cervical dilation stick for abortion aspiration and curettage dilatation cervix has been reported in China. In addition, the hospital once once the cervical dilation stick for pregnant 14 weeks to 18 weeks after induction of labor failure to expand the cervix to avoid secondary medication, the effect is satisfactory, the report is as follows. 1. Clinical Materials: Department of expanding rods Jinan Fengxing Medical Devices Factory production. The main choice of this group on the 3rd expansion bar, length 53mm, diameter 6.2mm, for the one-time use of goods. 2. Methods: Standard: middle and late pregnancy transabdominal intra-amniotic injection