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The current intrauterine device (IUD) is provided with a “visualized” anchor.
Notes: The anchor with visualization element (magnification × 1.5) consists of the anchoring knot and a tiny medical grade stainless steel element (AISI 316L/1.4404) (2 mm long and 0.5 mm in diameter) (left). 2-D and 3-D ultrasound showing the properly located anchor (arrow) as well as the frameless IUD in the uterine cavity of a young woman (middle 2-D and right 3-D).
