I've written about sterilizing iPads and iPhones for use in the operating room and that does work, but there are challenges with subjecting electronics to sterilization.
However, there's another cool option for examining medical records and digital images in the OR - a touch screen you do not touch. Check out this gestural interface to EHRs and PACS systems that uses an Xbox and Kinect.
Traverse pages, select tabs, and zoom into images using only body movements.
The system, called TedCas, was recently named one of the top applications for Kinect.