RAIS device (IMAGE) University of Leeds Caption A diagram showing how the RAIS retractor is used to lift the abdominal wall during surgery Credit University of Leeds/Dr Pete Culmer Usage Restrictions Please us the credit License Original 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.