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blood pressure deviceCaltech
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86% Informative
Caltech researchers have developed a method to noninvasively and continually measure blood pressure anywhere on the body with next to no disruption to the patient.
The new technique uses sound waves to gently stimulate resonance in an artery and then uses ultrasound imaging to measure the artery's resonance frequency.
In a small clinical study, the device produced results akin to those obtained using the standard-of-care blood pressure cuff.
The Esperto device is small, noninvasive, relatively inexpensive, and it has an automated method for locating the patient's blood vessel without needing to be physically repositioned.
Like a guitar changing pitch as it is plucked while being plucked, the frequency at which an artery resonates when struck by sound waves changes depending on the pressure of the blood it contains.
Abu-Mostafa's new technique is called "Resonance sonomanometry for noninvasive, continuous monitoring of blood pressure" Additional authors on the paper include Raymond Jimenez (BS '13 ), Steven Dell , Austin C. Rutledge , Matt K. Fu and William P. Dempsey of Esperto Medical.
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