MedFlash puts your critical medical information in the hands of emergency personnel when you need it most. A USB device that stores your personal health record PHR and works on any windows based computer MedFlash comes pre loaded with software that allows you to enter and edit your PHR.. It s easy to use and can be taken with you anywhere. Emergency personnel will be able to view any information you want to share including your medical condition allergies prescriptions and more from virtually any computer.