Sphygmomanometer

Sphygmomanometer

Pressure Sensors

Published in John G Webster, Minimally Invasive Medical Technology, 2016

A typical sphygmomanometer consists of an inflatable cuff for occlusion of blood, a rubber bulb for inflation of the cuff and either a mercury or aneroid manometer for measurement of pressure. First the occlusive cuff is inflated until the cuff pressure is higher than the systolic pressure. Then the cuff is deflated at 2–3 mmHg s−1. When the cuff pressure is between the systolic pressure and diastolic pressure, the blood under the cuff spurts and causes a palpable pulse in the wrist. The vibration of the vessel under the cuff generates an audible sound (korotkoff sound), which can be heard by a stethoscope. At the first audible sound, the pressure read from the manometer indicates the systolic pressure. The last audible sound indicates the diastolic pressure (Peura 1998).

Indoor thermal environment during heating season and the health of elderly in China

View Article

Journal Information

Published in Science and Technology for the Built Environment, 2022

Bai Song, Hiroshi Yoshino, Tomonobu Goto, Huibo Zhang, Jun Guan, Kenichi Hasegawa, Naoki Kagi, Nianping Li, Zhenhai Li, Jing Liu, Yang Lv, Jingchao Xie, U. Yanagi, Qingyuan Zhang

The blood pressure (systolic blood pressure (SBD) and diastolic blood pressure (DBP)) of the elderly was measured using a UA-767PC sphygmomanometer (A&D Medical Corp., Japan) within one hour of waking up and before sleeping, and the data were continuously recorded for one week. The measurement was performed twice each time, and the average value was used for the analysis. The accuracy of the sphygmomanometer was ± 3 mmHg and the valid range was 0–280 mmHg.

Explore chapters and articles related to this topic

Pressure Sensors

Indoor thermal environment during heating season and the health of elderly in China