Kisnisci H, Champion C B
Int J Gynaecol Obstet. 1985 Feb;23(1):51-4. doi: 10.1016/0020-7292(85)90011-6.
Delta devices, modifications of standard Lippes Loop D and TCu 220C IUDs, were designed for postpartum insertion. A study of the Delta T and the Delta Loop was conducted at Hacettepe University School of Medicine in Ankara, Turkey. The IUDs were randomly allocated to 246 immediately postpartum women (less than 10 min postplacenta). Twelve-month expulsion rates were low for both devices; 3.7 for Delta Loop users and 7.6 for Delta T users.
Delta装置是标准Lippes Loop D型和TCu 220C型宫内节育器的改良型，专为产后放置而设计。在土耳其安卡拉的哈杰泰佩大学医学院对Delta T型和Delta Loop型宫内节育器进行了一项研究。这些宫内节育器被随机分配给246名产后即刻（胎盘娩出后不到10分钟）的妇女。两种装置的12个月脱落率都很低；Delta Loop型使用者为3.7%，Delta T型使用者为7.6%。
