Air-Chamber Sensing for Blood Pressure Monitoring
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A non-invasive method for blood pressure (BP) monitoring, by using a continuously inflated air-chamber, positioned against the area of either brachial or radial artery pulsation is tested. Tracings obtained via conventional pressure transducers or a catheter-tip-manometer through 5 types of air-chambers are compared to simultaneously obtained tracings, via an intraarterial catheter. The pulse tracings obtained via an air-chamber of 2.0×2.5×4.0 cm, positioned into the empty case of a wrist watch and placed against the area of the radial artery pulsations showed a highly significant correlation (p varying from p<0.01 to p<0.001, in 20 patients, 10 hypertensives and 10 normotensives) to the simultaneously recorded intraarterial BP tracings for a time period of 2 hours.
KeywordsBlood Pressure Monitoring Blood Pressure Reading Hypertension Detection Wrist Watch Pulse Tracing
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