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本文对799例放置TCu220C型宫内节育器(简称T型环)与1641例放置金属单环的已婚育能妇女作了随访和调查,并对两种宫内节育器的避孕节育效果和放置环后的副反应做了对比分析。可见T型环的脱环率低,带环妊娠率低,一年后继续存放率高,它的副反应与金属单环相比,无显著差异。我(们)认为T型环是一种结构简单,造型合理。有效避孕节育率高,可以广泛推广使用的一种宫内节育器
In this paper, 799 cases of placement of TCu220C intrauterine device (referred to as T-ring) and 1641 cases of single-ring metal implantation of married women were made follow-up and survey of contraception and contraceptive contraceptive effect and placement After the ring side effects made a comparative analysis. It can be seen that the T-ring has a low rate of cyclization, a low rate of ring pregnancy, and a high rate of storage after one year. The side reaction has no significant difference from that of the metal single ring. I (we) think T-ring is a simple structure, reasonable shape. Effective contraceptive rate is high, can be widely used to promote the use of an IUD