Image Which Shows The Robotic Arm (IMAGE) University of Leeds Caption The robotic arm houses a magnet that interacts with magnets on a small capsule inside the patient and is able to navigate the capsule to the correct spot inside the colon. Credit University of Leeds Usage Restrictions Please credit 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.