A wearable blood pressure monitor uses sound to capture a continuous record of the vital sign data.
PNAS NexusJul 30 2024 Continuous, noninvasive blood pressure monitoring has been a longtime goal of medicine, given blood pressure 's utility as a metric for clinicians, but for decades, the options have been limited to internally placed arterial catheters or inflatable pressure cuffs. Newer proposed methods need frequent calibration with an inflatable cuff.
Raymond Jimenez and colleagues propose a method based on resonance sonomanometry, in which the artery is stimulated by an acoustic transducer and its resonant response and dimensions are measured using ultrasound. Just as a guitar string changes tone as its tension is manipulated, so does the circumferential tension of the arterial wall change its resonant frequency through the continuous phases of the cardiac cycle.
Additional testing on the carotid arteries of six volunteers showed promising results, albeit with lower systolic values, although this would be predicted given the carotid being closer to the heart than the brachial artery measured by the cuff. According to the authors, their proposed device could be worn over any ultrasound-accessible artery, even including the radial, where the device could be worn like a watch.Journal reference:Jimenez, R., et al.
Blood Pressure Imaging Ultrasound
Deutschland Neuesten Nachrichten, Deutschland Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
Nobody's Child's 'wearable sunshine' polka dot dressThe dress is perfect for a special occasion
Weiterlesen »
New wearable patch measures trace perspiration during activity and restResearchers at University of Tsukuba have pioneered a state-of-the-art wearable device capable of precisely and continuously measuring trace perspiration amounts. This innovative device is adept at monitoring perspiration levels during not only physical activity but also rest.
Weiterlesen »
Off-the-shelf wearable trackers provide clinically-useful information for patients with heart diseaseA study published in Nature Medicine examined if a commercially-available fitness tracker and smartphone could continuously monitor the response to medications, and provide clinical information similar to in-person hospital assessment.
Weiterlesen »
Consumer wearable devices provide clinical information similar to hospital assessment of heart diseaseMonitoring of heart rate and physical activity using consumer wearable devices was found to have clinical value for comparing the response to two treatments for atrial fibrillation and heart failure.
Weiterlesen »
The Future is Wearable: Advancing Human Health Through Portable SpectroscopyIn this interview conducted at Pittcon 2024 in San Diego, we spoke to Richard Crocombe about his journey in the field of spectroscopy, focusing on the development of portable spectrometers and their transformative potential in wearable health and fitness technologies.
Weiterlesen »
The Role of Nanotechnology in Biomedical Wearable SensorsNanotechnology enhances wearable sensors, offering high sensitivity and accuracy for early disease detection and health monitoring.
Weiterlesen »