<Tr> <Th> STI protection </Th> <Td> No </Td> </Tr> <Tr> <Th> Benefits </Th> <Td> Permanent contraception </Td> </Tr> <P> Essure is a surgical sterilization procedure for women developed by Conceptus Inc., a subsidiary of Bayer AG . With Essure, a coil designed to induce fibrosis and block the fallopian tubes is placed into each fallopian tube to prevent fertilization . It was approved for use in the United States on November 4, 2002 . </P> <P> Essure was designed as an alternative to tubal ligation, the standard procedure for surgical sterilization . In tubal ligation, a surgeon cuts a small hole in the abdomen, and through that hole, blocks or cuts the fallopian tubes . Tubal ligation is major surgery that is done in a hospital and requires anesthesia . Essure can be done in a doctor's office with less anesthesia . A 2009 review concluded that Essure seemed to be safe and effective based on short - term studies, and that it was less invasive and could be cheaper than laparoscopic bilateral tubal ligation . </P>

The essure system of female sterilization works by