Apple licenses blood-measuring bracelet

Apple on Thursday was granted a patent for what appears to be a blood pressure-measuring device that connects to existing Apple devices. 

"The system includes an expandable member or structure that has a multi-compartment structure and/or is mounted on a rigid surface or structure," reads the patent, issued from the U.S. Trademark and Patent Office. "The system is incorporated into a portable multi-function device, or is configured to communicate with a portable multi-function device." 

Photos attached imply that the "portable multi-function device" referenced is the Apple Watch, according to Appleinsider.com.