Patently Apple has covered a number of Apple patents over the years regarding their work on blood pressure cuff systems (01, 02, 03 and 04). Today the US Patent & Trademark Office published another two patent applications from Apple on this area of healthcare. The first patent is titled "Ambulatory Blood Pressure Cuff."  More specifically, the invention relates to ambulatory blood pressure cuffs that can be worn around a limb of a user to, periodically or continuously, measure a blood pressure of the user during their daily activities.

The Verywell Health site: "Ambulatory blood pressure monitoring is a way of assessing a person's blood pressure during their routine daily activities and during sleep. This measurement is often more accurate than those taken in a healthcare office."

According to Apple, a blood pressure measurement device including a blood pressure cuff is typically worn during measurement of a blood pressure, and is removed promptly thereafter. In some cases, it might be desirable to wear the monitoring device for longer periods of time such that physiological measurements can be performed periodically or continuously.

Apple's patent application covers a wearable blood pressure measurement device having an inner sleeve and a cuff module. The inner sleeve may be wearable on a limb of a user and having a first attachment mechanism. The cuff module may have a second attachment mechanism that is attachable to the first attachment mechanism.

The cuff module may include a cuff configured for placement over the inner sleeve, a bladder assembly having one or more bladders configured to expand and contract in response to a flow of a fluid (e.g., one or more gases (e.g., air) or liquids (e.g., oil)) therethrough, and a controller. The controller may be configured to measure a blood pressure of the user while controlling expansion and contraction of the one or more bladders.

Apple patent figures are also directed to a wearable device having an inner sleeve and a measurement module. The inner sleeve may be wearable on a limb of a user. The measurement module may be removably coupled to the inner sleeve. The measurement module may include one or more sensors, a controller, and a power delivery system. The controller may be in communication with the one or more sensors and configured to measure one or more health parameters of the user using the one or more sensors. The power delivery system may be configured to supply power to the one or more sensors and the controllers.

Apple patent figures are also directed to a wearable device for attachment to a limb of a user. The wearable device may include an elongate strap having a first end and a second end, a fold between the first end and the second end in the elongate strap, and a sizing mechanism. The sizing mechanism may allow the fold to open after the elongate strap is attached to the user, such that a portion of the elongate strap is released as slack to accommodate the limb of the user.

Apple's patent FIG. 1 shows a perspective view of a wearable device having an ambulatory blood pressure cuff worn by a use; FIG. 2A shows an exploded perspective view of the wearable device of FIG. 1.

Apple's patent FIG. 3A above shows a first way of wearing the wearable device of FIG. 1, using a shoulder strap; FIG. 3B shows a second way of wearing the wearable device of FIG. 1, using a stretchable fold of an inner sleeve of the wearable device.

Apple's patent FIG. 5A below illustrates a first example sizing mechanism of the wearable device of FIG. 1; FIG. 5B shows a second example sizing mechanism of the wearable device of FIG. 1.

Apple's patent FIG. 6A above illustrates shows a first fastening mechanism for the cuff of the wearable device of FIG. 1; FIG. 6B shows a second fastening mechanism for the cuff of the wearable device of FIG. 1; FIG. 7 shows a block diagram of a wearable device having an ambulatory blood pressure cuff, according to aspects of the present disclosure.

For greater details, review Apple's patent application # US 20230063813 A1.

Apple Inventors

• Will Smith: Leading Development of Health Products at Apple (Mechanical Engineering)
• Motohide Hatanaka: Product Design Engineer, Health Products
• Nick Trincia: Product Developer - Soft Goods
• Wegene Tadele: Apple Watch EE Tech Lead
• Salomé (Morales) Bavetta; Product Design / Mechanical Engineer