Israel’s MyMDband is a smart waterproof lifetime-guaranteed silicon band with a laser-engraved QR code on a stainless-steel buckle that displays all the data needed immediately after it’s scanned: prior medical conditions, current medications, allergies. Everything a paramedic needs to know.

http://www.israel21c.org/headlines/medics-create-smart-wearable-bands-with-complete-medical-profiles/