TERMIUM Plus®

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MERCURY TENSIOMETER [1 record]

Record 1 2008-08-15

English

Subject field(s)
  • Medical Instruments and Devices
CONT

A mercury sphygmomanometer is operated by inflating a rubber cuff placed around a patient's arm until blood flow stops. The cuff pressure is measured via the mercury column.

OBS

Currently, there are three major configurations of blood pressure monitors for home use: the mercury sphygmomanometer, the aneroid manometer, and semiautomatic manual-inflation or automatic-inflation digital devices.

OBS

Blood pressure measurement by sphygmomanometer is normally performed using a mercury manometer. This can consist of a U- tube half-filled with mercury, but more commonly it is a single tube, held vertical in use, which sits in a small reservoir of mercury. The reservoir is connected by a rubber tube to the source of air pressure to be measured. As pressure is applied mercury is forced up the column and the pressure can be read from a scale behind. The actual pressure is indicated by the difference in the level of the mercury in the column and the reservoir.

OBS

The mercury manometer is in fact only a part of the device called "mercury tensiometer". Mercury manometers are used in numerous fields. For example, the negative pressure within a dairy’s milking system is controlled by a mercury manometer.

French

Domaine(s)
  • Instruments et appareillages médicaux
CONT

Au cabinet médical, la méthode recommandée est la mesure clinique au moyen d’un sphygmomanomètre à mercure, le patient étant depuis plusieurs minutes en position assise ou couchée.

Spanish

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