A method and system for the localized delivery of therapeutic agents to internal body tissues, especially the brain. In one aspect the invention is a method of delivering a therapeutic agent to a target location within an internal body tissue, the method comprising: charging the therapeutic agent; providing...http://www.google.de/patents/US7706873?utm_source=gb-gplus-sharePatent US7706873 - System and method for controlled delivery of a therapeutic agent to a target location within an internal body tissue