Walmart Awarded Patent for Blockchain-Based Medical Records System

U.S. retail giant Walmart has been awarded a patent for a system that would store medical records on a blockchain from a wearable device, according to a patent filing published by the U.S. Patent and Trademark Office.

The system, according to the document, will allow medical professionals to retrieve medical data from a patient that is unable to communicate. The patient’s medical records will theoretically be stored on a blockchain, accessible by a device worn by the patient that first responders could access with an RFID scanner. The patent further explains the principles of the system's operation:
Walmart has filed patents for other blockchain-based systems, including a marketplace for reselling purchased products, a “Smart Package” system to track package contents, environmental conditions, location, and other details, and an electrical grid that will be powered by Bitcoin or other digital currencies. The company’s vice president Frank Yiannas said that Walmart is ready to use blockchain technology in its live food business, which will shorten the time it takes to track produce from six days to two seconds.
Don't you guys think If is applied it will be a blast in medical field specially in third world countries...