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多年来,由于微型腹腔镜或腹腔镜技术的改进,使全世界女性绝育数在1984～1990年的6年中增加45％,约有1亿4千万妇女依赖此法避孕。其中1千5百万在发达国家。夹子绝育法优点为损伤少,复通率高。最近,经美国绝育协作评审组调查结果发现,在美国绝育法失败率较高,这和所用方法有关。Hulka塑料弹簧夹最差,术后10年失败率可高达3.65％,而Filshie夹的效果最好,该夹的关键为:上下两臂内侧衬以硅橡胶垫,故具有弹性,当被钳夹的输卵管萎缩时,可在管上继续维持一定的压力。 为了降低塑料模型喷制过程的费用,Casey(曾参与Filshie夹的研制)又设计了一
Over the years, the improvement in mini-laparoscopic or laparoscopic techniques has led to a 45% increase in female sterilization worldwide over the six-year period from 1984 to 1990, with about 140 million women relying on this method of contraception. Of these, 15 million are in developed countries. Clip sterilization method has the advantages of less damage, high pass rate. Recently, the survey conducted by the US Sterilization Collaboration Review Group found that the failure rate of sterilization in the United States was high, which was related to the method used. Hulka plastic spring clip the worst, 10 years after the failure rate of up to 3.65%, while the Filshie clip the best effect, the key to the folder: upper and lower arms lined with silicone rubber pad inside, it is flexible, when the clamp Of tubal atrophy, the tube can continue to maintain a certain pressure. In order to reduce the cost of plastic model spray process, Casey (who participated in the development of Filshie clip) has designed a