Although this patent does not mention any of Apple’s existing equipment, but from the application image, this device is a wristband-type product, so we do not rule out the future use of Apple Watch equipment, as long as sufficient integration, So Apple Watch can be used to measure blood pressure.
In fact, health companies in China have already developed healthy bracelets capable of car heart rate and blood pressure. However, because of the combination of algorithms and sensors, the accuracy has yet to be improved, but the results can already be measured relatively accurately.
In this patent it is stated that: A blood pressure measurement system comprising: a pressure sensor; an expandable member comprising a plurality of expandable batteries, wherein the plurality of expandable batteries comprises at least three or at least two expandable batteries; And constructed as a selective expandable extension actuator.
Working through a series of miniature airbags or patented 'batteries' where these airbags exert pressure on the wearer's arm. The device measures the systolic blood pressure before release to measure the diastolic pressure of the heart.