An infusion pump for administering fluid from a fluid source to a patient comprises a base member having an electric motor for driving a fluid pump housed within a cassette detachably mountable on the base and connectable to the motor. The cassette houses a reciprocative piston and cylinder assembly...http://www.google.fr/patents/US4838860?utm_source=gb-gplus-shareBrevet US4838860 - Infusion pump
