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采用宫内节育器达到避孕目的在世界上已有80多年历史,我国在30年代已开始使用,但使用率较低,1957年我国正式推广。近40年的临床实践证实,宫内节育器是一种安全、有效、简便、经济的避孕方法,很受群众欢迎,现已成为我国育龄妇女主要节育措施之一。据报导全国采用宫内节育器避孕者约占妇女所有节育措施的50%以上。我院自1986年使用我国天津医疗器械厂制造的TCU220C型宫内节育器以后,带器妊娠率及脱落率下降,效果较好。TCU220C型带铜宫内节育器内含活性物质——金属铜,横臂上套有二个小铜管,直柱上套有五个小铜管,铜的总面积为220平方毫米。优点:(1)铜被体内溶解释放铜离子,增加子宫内膜的炎症反应和前列腺素的产生,提高宫腔和宫颈粘液的含铜量,增加了对精子的毒性
The use of IUD to achieve the purpose of contraception has been in the world for more than 80 years of history, our country has begun to use in the 1930s, but the utilization rate is low, 1957 China’s official promotion. Nearly 40 years of clinical practice have confirmed that IUD is a safe, effective, simple and economical method of contraception and is very popular with the public. It has become one of the main birth control measures for women of childbearing age in our country. It is reported that contraceptives using IUDs account for more than 50% of all birth control measures in the country. Our hospital since 1986 using China’s Tianjin Medical Instrument Factory TCU220C-made intrauterine device, the pregnancy rate with the device and drop off rate, the effect is better. TCU220C with copper intrauterine device contains active substances - metal copper, horizontal arm with two small brass, straight column with five small brass, copper, a total area of 220 square millimeters. Advantages: (1) copper is dissolved in the body to release copper ions, increase the endometrial inflammation and prostaglandin production, increase the copper content of uterine and cervical mucus, increased sperm toxicity