Apparatus is provided for assuring that fluid is introduced from a pump to a receiver, such as a patient, at a controlled and safe pressure. This arrangement includes conduit means, such as inlet and outlet lines, which extend from the pump to the receiver and which are included in a disposable unit....http://www.google.de/patents/US4277227?utm_source=gb-gplus-sharePatent US4277227 - Apparatus for converting a pump to a controller
