Apple has filed a series of patents relating to a future solution for obtaining a user's blood pressure over the years. A few of these patents could be reviewed here: 01, 02, 03, 04 and 05. Today the U.S. Patent and Trademark Office officially granted Apple a patent that covers one of their inventions for a low-profile blood pressure measurement system, methods and a cuff design.

The system includes an expandable member or structure that has a multi-compartment structure and/or is mounted on a rigid surface or structure. The system is incorporated into a portable multi-function device, or is configured to communicate with a portable multi-function device.

Apple's patent FIGS. 1A and 1B below are posterior and anterior views of an exemplary blood pressure measurement system worn on the wrist; Apple's patent FIG. 3A presented above is a block diagram illustrating an exemplary controller configuration of a system.

Apple's patent FIGS. 12A and 12B presented below are schematic cross-section and perspective views of an exemplary expandable member comprising multiple expandable cells in a stacked and bi-sectioned configuration; FIG. 17A is a schematic perspective view of an expandable member comprising a lower plurality of expandable cells and an upper plurality of expandable cells with different orientation than the lower plurality. FIG. 17B depicts the overall orientation of the expandable member in FIG. 17A with respect to the band of the blood pressure measurement system.

Apple patent FIGS. 4A and 4B below are perspective schematic views of an expandable member in a flat and circumferential configuration; FIG. 5 is a perspective schematic view an exemplary system with an expandable member and a housing that supports a display; FIG. 19 is a perspective schematic view of an exemplary system with an expandable member located on a frame member.

For more details, review Patently Apple's original 2018 report or Apple's granted patent 11633114.

A Few of Apple's Inventors

• Habib Karaki: Health Technologies Electrical Engineer
• Richard Kimoto: Senior Research Scientist
• Thomas Sullivan: Lead Sensor System Architect