Joe Kiani, addresses the second-annual Patient Safety, Science & Technology Summit in January 2014. Courtesy of the Patient Safety Movement Foundation hide caption

itoggle caption Courtesy of the Patient Safety Movement Foundation

Proton beam therapy can precisely target tumors to avoid harming surrounding tissue, advocates say. Blythe Bernhard/St. Louis Post-Dispatch/MCT/Landov hide caption

itoggle caption Blythe Bernhard/St. Louis Post-Dispatch/MCT/Landov

The company Proteus has developed a computer that attaches to a pill and tracks the pill's absorption into the body. The technology has passed clinical trials. iStock hide caption

itoggle caption iStock

Andreas Fhager, a biomedical engineer at the Chalmers University of Technology in Sweden, adjusts the Strokefinder device on a test subject's head. Gunilla Brocker hide caption

itoggle caption Gunilla Brocker

Ed Damiano and his son David, 15, play basketball at home in Acton, Mass. Ed has invented a device he hopes will make David's diabetes easier to manage. Ellen Webber for NPR hide caption

itoggle caption Ellen Webber for NPR

The dream of epilepsy research, says neurobiologist Ivan Soltesz, is to stop seizures by manipulating only some brain cells, not all. Steve Zylius/UC Irvine Communications hide caption

itoggle caption Steve Zylius/UC Irvine Communications

This advertisement for the da Vinci surgical robot led former hospital executive Paul Levy to ask the University of Illinois Hospital and Health Sciences System about its role in marketing the high-tech device. Paul Levy/ProPublica hide caption

itoggle caption Paul Levy/ProPublica