The tech could be used for a disposable wristband that stores and transmits health information to your doctor's smartphone.
The US Patent and Trademark Office on Tuesday published 58 newly granted Apple patents, but one that envisions communication between a device like the iPhone or iPad and a wireless disposable wristband has received some attention.

The patent, which was earlier reported on by Patently Apple, covers technology for an "autonomous battery-free microwave frequency communication device" that could be embedded on physical objects such as a wristband, flyer, or card.

In the patent, Apple describes how a smartphone could wirelessly transmit data to a disposable hospital wristband that incorporates the microwave frequency device and also contains sensors or stored information, such as medical records or procedures performed on a patient during hospitalization. The smartphone would be able to both read information from the wristband and write information to the wristband. The patent suggest the wristband could have sensors that measure certain health functions, such as body temperature and pulse.