An electrochemically driven drug dispenser for dispensing a drug at a controlled rate. The drug dispenser includes an electrochemical pump which pumps an electrochemically active fluid from a first compartment through a membrane into a scond compartment. As the fluid enters the second compartment it...http://www.google.es/patents/US4886514?utm_source=gb-gplus-sharePatente US4886514 - Electrochemically driven drug dispenser
