A fluid pumping assembly for particular use in delivery of sterile fluid used in surgical procedures, includes a pump control structure to which a replaceable fluid pumping cartridge is connected and disconnected to provide convenient replacement and disposability of the cartridge. The pump cartridge...http://www.google.es/patents/US5476368?utm_source=gb-gplus-sharePatente US5476368 - Sterile fluid pump diaphragm construction
