An air elimination system is provided for an intravenous fluid delivery system for intravenous injection of fluid into a patient. An air-detection apparatus (5) is disposed in an intravenous fluid line (3). A return line (8) is attached to a point in the line (3) below the air-detection apparatus (5)....http://www.google.de/patents/US5211201?utm_source=gb-gplus-sharePatent US5211201 - Intravenous fluid delivery system with air elimination
