The invention concerns an implantable infusion pump for dosed emission of medicines into the human body comprising a pump chamber formed by an upper chamber portion (3) and a lower chamber portion (2), whereby said pump chamber is divided by a flexible membrane (6) into a pressure chamber (8) and...http://www.google.es/patents/US5836915?utm_source=gb-gplus-sharePatente US5836915 - Implantable infusion pump
