A medical infusion pump is disclosed which provides for greatly improved accuracy in the delivery of medicaments to a patient. Among the various features included in the instant invention is a pumping body which serves to deform and reform a tube so as to maintain the initial cross-section thereof and...http://www.google.es/patents/US6213738?utm_source=gb-gplus-sharePatente US6213738 - Volumetric infusion pump
