An implantable programmable infusion pump (IPIP) is disclosed and generally includes: a fluid reservoir filled with selected medication; a pump for causing a precise volumetric dosage of medication to be withdrawn from the reservoir and delivered to the appropriate site within the body; and, a control...http://www.google.ca/patents/US4731051?utm_source=gb-gplus-sharePatent US4731051 - Programmable control means for providing safe and controlled medication infusion
