Patrick Wellborn and Granular-Jamming Cap (IMAGE) Vanderbilt University Caption Vanderbilt graduate student Patrick Wellborn viewing the granular-jamming cap that he has helped develop in order to improve the accuracy of the image guidance system surgeons use for endonasal surgery. Credit Joe Howell, Vanderbilt University 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.