Blood pressure watches anyone?

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Caltech Team Develops First Noninvasive Method to Continually Measure True Blood Pressure

https://www.caltech.edu/about/news/caltech-team-develops-first-noninvasive-method-to-continually-measure-true-blood-pressure

Device uses sound waves to gather blood pressure data from blood vessels, monitoring the response with ultrasound.

Caltech Team Develops First Noninvasive Method to Continually Measure True Blood Pressure

Seems very interesting, pr burble aside. Wonder how close this is to a micro-sonogram if generalised ? Star Trek medical tricorder component material by my reckoning.