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本文报告了1980年9月至1982年6月在南斯拉夫、巴拿马、哥斯达梨加和埃及的5个研究中心进行的 TCu380Ag 和 MLCu375临床试验结果。TCu380Ag 系塑料制 T 形 IUD,其横臂上有铜套,纵臂上紧绕铜丝,内有银芯,铜的表面积为380cm~2,其纵臂末端有一塑料小球以防宫颈穿孔。MLCu375有塑料制、能弯曲、具锯齿状翅的臂部,以利 IUD的固定,IUD 的臂上缠以铜丝,表面积为375mm~2。研究包括1499名健康、有正常性生活的妇女,随机分为二组,737例置 TCu380Ag,740例置 MLCu
This paper reports the results of the clinical trials of TCu380Ag and MLCu375 conducted at five research centers in Yugoslavia, Panama, Costa Rica and Egypt from September 1980 to June 1982. In this paper, TCu380Ag plastic T-shaped IUD, the horizontal arm of the copper sleeve, vertical arm around the copper wire, silver core, the surface area of copper is 380cm ~ 2, the trailing arm at the end of a plastic ball to prevent cervical perforation. MLCu375 has a plastic, flexible, jagged wing arm to facilitate IUD fixation. IUD’s arms are wrapped with copper wire and have a surface area of 375mm-2. The study included 1499 healthy, normal-life women who were randomly divided into two groups: 737 TCu380Ag, 740 MLCu