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宫内节育器(以金属单环为主,简称环),系我国妇女的主要避孕措施,但置环妊娠率占2.55％～8.8％,为探讨置环妊娠的环位,试制短刻度软探针,放置宫颈管内拍骨盆侧位片作环定位,能在人流术前检测出环在宫外或宫内的具体位置,以便指导取环的方式及为以后采取避孕措施作参考。我科于1984年5月开始和用本法对置环妊娠的环定位共110例,现分析如下: 一、宫颈短刻度软探针(见封底图) 使用方法;1.消毒:使用前将探针用1‰新洁尔灭浸泡30分钟备用。2.双合诊检查子宫大小、方位、常规消毒,将窥器插入阴道。3.用止血钳夹着宫颈外标盘的柄,将宫颈探针插入宫颈管内3cm,使标盘紧贴宫颈,先退出窥器,再退出止血钳,使刻度尼龙尾丝露于会阴处。4.记录子宫大小及方位。5.受检者自行到放射线科拍骨盆侧位片,20分钟可看到结果.当日可手术。二、判断方法根据妊娠不同周数子宫大小的官腔长度的经验常数(A)减去环的直径(C),再减去环下缘与宫颈刻度探针顶的距离(可用X光片上宫颈探针1cm刻度为标尺测量)为(D),再减去宫颈刻度探针长度3cm(E)。即B(环上缘与宫底距离)=A-(C+D+E)。 (按一般认为子宫鸭卵大,官腔9cm,鹅卵大为
Intrauterine device (mainly metal single ring, referred to as the ring), the Department of Chinese women’s main contraception, but the rate of ring pregnancy accounted for 2.55% ~ 8.8%, in order to explore the location of ring gestation, trial short soft detection Needle, place the endocervical tuberculosis pelvis lateral position for ring positioning, before the abortion can detect the ring in the uterus or intrauterine specific location in order to guide the way to take the ring and for future contraception measures for reference. Our department in May 1984 and began to use this method for ring positioning of the ring around a total of 110 cases of pregnancy, are analyzed as follows: First, the short-term cervical soft probe (see the back cover) use; 1. Disinfection: Probe with 1 ‰ Bromogeramine soak 30 minutes spare. 2. Double check the uterus size, orientation, routine disinfection, the speculum into the vagina. 3. With a hemostatic forceps pinch the outer handle of the cervical plate, the cervical probe inserted into the cervical canal 3cm, so that the standard plate close to the cervix, first exit the speculum, and then exit the hemostatic forceps, so that the scale exposed nylon tail wire in the perineum Department. 4. Record the size and position of the uterus. 5. Subjects to the radiology department to take pelvic lateral radiographs, 20 minutes to see the results .On the day surgery. Second, determine the method According to the different weeks of pregnancy, the size of the uterus of the uterine cavity length of the empirical constant (A) minus the diameter of the ring (C), and then subtract the lower edge of the ring and the top of the cervical scale probe distance Needle 1cm scale for the ruler to measure) (D), then subtract the cervical scale probe length 3cm (E). That B (ring edge and the distance from the palace) = A- (C + D + E). (According to the general that the uterus duck egg, the official cavity 9cm, goose great