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金塑铜环的结构是在塑料圈内加一立柱,立柱上缠绕250mm~2的钢丝,使之成为一种活性的环形IUD。1154例放置12个月时的临床总结,妊娠率为1.4每百妇女,脱落率为0.8每百妇女,因症取出率为3.14每百妇女,继续使用率为93.8每百妇女。曾和ML铜375和T铜220C作了随机分配的比较性观察,3种IUD之间除因症取出和总终止率和T铜220C的差异有显著性之外,其他方面差异均无显著性,说明金塑铜环的避孕效果已达到几种主要的活性IUD的水平。
The structure of the bronze ring is the addition of a column in the plastic ring, the column around the wire 250mm ~ 2, making it an active ring IUD. 1154 cases were placed 12 months clinical summary, the pregnancy rate of 1.4 per 100 women, shedding rate of 0.8 per 100 women, the removal rate was 3.14 per 100 women, the continued use rate of 93.8 per 100 women. Had and ML copper 375 and T copper 220C made a comparative analysis of random distribution, among the three kinds of IUD except for the removal of the disease and the total termination rate and T copper 220C the difference was significant, the other differences were not significant , Indicating that the contraceptive effect of the bronze ring has reached the level of several major active IUDs.