Raven (IMAGE) University of Washington Caption Raven, the mobile surgical robot developed in the UW's BioRobotics Lab, weighs about 50 pounds. Its nimble appendages can suture wounds and perform minimally invasive surgeries. Credit David Clugston 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.