3. A sphygmomanometer, blood pressure meter, blood pressure monitor or
blood pressure gauge (also referred to as a sphygmometer) is a device used
to measure blood pressure composed of an inflatable cuff to restrict blood
flow, and a mercury or mechanical monometer to measure the pressure.
Manual sphygmomanometers are used in conjunction with a
stethoscope.
4.
The word comes from the Greek (sphygmos, pulse), plus
the scientific term manometer (pressure meter). The
device was invented by Samuel Siegfried in 1881.
The usual unit of measurement of blood pressure is
millimeters of mercury (mmHg) as measured directly
by a manual sphygmomanometer
HISTORY
7. Digital
Digital, using oscillometric
measurements and electronic
calculations rather than
auscultation. They may use
manual or automatic inflation.
These are electronic, easy to
operate without training, and
can be used in noisy
environments; they are not as
accurate as mercury
instruments. They measure
systolic and diastolic pressures
by oscillometric detection
10.
The stethoscope is an acoustic medical device for
auscultation or listening to the internal sounds of an
animal or human body.
Stethoscope
11. It is a medical instrument for listening to the action of
someone's heart or breathing, typically having a small disc-
shaped resonator that is placed against the chest, and two tubes
connected to earpieces. It is often used to listen to lung and
heart sounds. It is also used to listen to intestines and blood
flow in arteries and veins.
12. In combination with a
sphygmomanometer. It is
commonly used for
measurements of blood
pressure. Less commonly,
"mechanic's stethoscopes" are
used to listen to internal
sounds made by machines,
such as diagnosing a
malfunctioning automobile
engine by listening to the
sounds of its internal parts.
The stethoscope was invented
in France in 1816 by René
Laennec in Paris