Device Helmet (image) Houston Methodist Share Print E-Mail Caption Device helmet with 3 oncoscillators securely attached. The oncoscillators are connected to a controller box powered by a rechargeable battery. Credit Houston Methodist Usage Restrictions None Share Print E-Mail 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.