Ku and Collaborators (IMAGE) Georgia Institute of Technology Research News Caption Georgia Tech Regents' Professor David Ku, consultant Harris Bergman and graduate student Prem Midha (left to right) set up a Masterflex pump system, which is used to create pulsatile blood flow through the prosthetic vein valve to test for thrombus formation. Credit Georgia Tech Photo: Gary Meek Usage Restrictions None 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.