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穗Ⅰ号宫内避孕环是用高压聚乙烯制成的环状圈,中有支架,外径缠绕不锈钢丝的一种混合环,1972年底试制成功。现有外径24、22、20、18毫米等四种规格,经过2年临床应用,共有3,247例(不包括下乡放环数)。现将追踪随访2,354例小结如下:一、一般情况1.资料来源:本文资料来自本市计划生育科研协作组单位。2.放置时间:3,247例放置时间,大多数在人工流产同时或月经后放入,分别占放环总数的46.5％及42.4％,少数在哺乳期放环,
Ear No. I intrauterine contraceptive ring is made of high pressure polyethylene ring, in the stent, the outer diameter of a mixed ring of stainless steel wire, the trial success by the end of 1972. The existing outer diameter of 24,22,20,18 mm and other four specifications, after 2 years of clinical application, a total of 3,247 cases (not including the release of the ring to the countryside). Now follow-up 2,354 cases are summarized as follows: First, the general situation 1. Source: This article information from the city family planning research collaboration unit. 2. Placement time: 3,247 cases of placement time, most of them were placed in abortion at the same time or after menstruation, respectively, accounting for 46.5% and 42.4% of the total number of release rings, a small number of rings in lactation,