A casette employing a stretchable elastomeric membrane used with an intravenous infusion controller to limit the field flow to a patient. The casette includes two sections of rigid plastic fused together with the membrane between them. The membrane and one section of the plastic form the channel through...http://www.google.es/patents/US4181245?utm_source=gb-gplus-sharePatente US4181245 - Casette for use with an I.V. infusion controller
