1·The utility model relates to a T-shaped contraceptive device with a ball head and the placing mould.
球头T型节育器是一种新型医疗器械，专用模具是一种新型非金属材料成型工具。
2·Objective To evaluate the clinic significance of trans hysteoscopic removal of occult intrauterine contraceptive device.
目的探讨宫腔镜应用于困难取出宫内节育器的临床意义。
3·The effects of nylestriol and misoprostol are equal on the extraction of contraceptive device in postmenopausal women. Both drugs are curative and safe.
结论尼尔雌醇与米索前列醇对绝经后妇女取节育环难易影响相当，且安全、成功率明显提高。