Essure device (Conceptus Inc) is a permanent birth-control device. The micro-inserts are composed of metallic elements that can be seen on plain film, CT, ultrasound, and MRI. This device is inserted into the fallopian tubes by a catheter via the transcervical route. It contains inner polyethylene terephthalate fibers to induce a benign fibrotic reaction and is held in place by a flexible stainless steel inner coil and a dynamic outer nickel-titanium alloy coil.