Copperkierukka
Copperkierukka is a Finnish term that translates to "copper coil" and most commonly refers to a type of intrauterine device (IUD) used for contraception. This small, T-shaped device is inserted into the uterus by a healthcare professional. Its primary mechanism of action involves copper, which is released by the coil. This copper is spermicidal, meaning it is toxic to sperm and prevents fertilization. Additionally, the presence of the IUD itself can create an inflammatory reaction in the uterus that is hostile to implantation, should fertilization occur.
Copperkierukka is considered a highly effective, long-acting reversible contraceptive method. Its effectiveness rate is over 99%.