An IV port body defining an IV port includes a valve body configured as a luer fitting, and a movable valve member defining an outer periphery that is uninterrupted within the periphery is disposed in the valve body. The valve member is biased to a first configuration, wherein a passageway for fluid...http://www.google.es/patents/US6068617?utm_source=gb-gplus-sharePatente US6068617 - Needleless valve for use in intravenous infusion
