Disclosed is a method and apparatus of contraception. The apparatus can include an implant sized for insertion into a fallopian tube. The implant can comprise a plurality of loose, bulked fibers. The fibers can be formed from one or more bioabsorbable materials, for example, the method can include inserting...http://www.google.com/patents/US8011370?utm_source=gb-gplus-sharePatent US8011370 - Method for permanent occlusion of fallopian tube
