Sphygmomanometer | 合法醫療器材資訊網

Instrument for measuring blood pressure

A sphygmomanometer ( SFIG-moh-mə-NO-mi-tər), a.k.a. a blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure, composed of an inflatable cuff to collapse and then release the artery under the cuff in a controlled manner,[1] and a mercury or aneroid manometer to measure the pressure. Manual sphygmomanometers are used with a stethoscope when using the auscultatory technique.

A sphygmomanometer consists of an inflatable cuff, a measuring unit (the mercury manometer, or aneroid gauge), and a mechanism for inflation which may be a manually operated bulb and valve or a pump operated electrically.

Both manual and digital meters are currently employed, with different trade-offs in accuracy versus convenience.

A stethoscope is required for auscultation (see ...