A flow control valve for medical liquid is disclosed. The valve has a housing including an inlet, an outlet, and a flow path therebetween. A plurality of flow restrictors are located in the flow path to define a plurality of flow streams of differing flow rates. A flow control member is disposed in the...http://www.google.es/patents/US7690396?utm_source=gb-gplus-sharePatente US7690396 - Multirate tubing flow restrictor
