ASchematic of an Industrial Ejector Pump (IMAGE) University of California - San Diego Caption This device transfers the energy of flow with higher pressure to the flow with lower pressure, hence elevating the pressure at the outlet. Based on the same concept, flow through the superior vena cava can be assisted by flow through the shunt to obtain a higher pressure in the pulmonary artery without increasing superior vena cava pressure. Credit Jacobs School of Engineering/UC San Diego Usage Restrictions Please credit Jacobs School of Engineering/UC San Diego License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.