Catheter and test in pigs (IMAGE) University of California - San Diego Caption A view of the steerable catheter, right, and how it navigates a brain blood vessel (insert on the left). Credit University of California San Diego Usage Restrictions Please credit University of California San Diego 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.