Implants are used in combination with a fibrosis-inducing agent in order to induce fibrosis that may otherwise not occur when the implant is placed within an animal or increase fibrosis between the implant and the host tissue. ...http://www.google.es/patents/US20050191248?utm_source=gb-gplus-sharePatente US20050191248 - Medical implants and fibrosis-inducing agents