(?)型宫内节育器(IUD)是一种新型的活性IUD。由于其低脱落率和带器妊娠率、高续用率,明显优于以往IUD,现已越来越受医务人员和患者的青睐。尤其对有月经过多史的妇女及放置其它种IUD有频脱落和出血史的妇女更适宜。但因(?)型IUD呈“(?)”型态,其两横臂及中部的纵臂部分不易 (?) IUD is a new type of active IUD. Because of its low shedding rate and device pregnancy rate, high renewal rate, significantly better than the previous IUD, has now been more and more medical staff and patients of all ages. Especially for women with a history of menorrhagia and placement of other types of IUD shedding and bleeding history of women is more appropriate. However, due to (?) Type IUD was “(?)” Type, the two arms and the middle part of the longitudinal arm is not easy