Prosthetic 2 (of 2) (IMAGE) Johns Hopkins University Caption Jesse Sullivan, a former high-power lineman, lost both arms in 2001 after being shocked on the job. Here, he demonstrates the capabilities of the Proto 1 prosthetic arm system during clinical tests at the Rehabilitation Institute of Chicago. Credit Rehabilitation Institute of Chicago 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.