Welch Allyn GS 777, Directions For Use Manual

Page: 47 / 54

Welch Allyn 使用说明 41
Wall and Mobile Aneroid
Sphygmomanometer
Model 509 and Model 767
Blood pressure measurements determined with
this device are equivalent to those obtained by a
trained observer using the auscultatory method,
within the limits prescribed by the American
National Standard ANSI/AAMI SP10, 2002,
Manual, electronic, or automated
sphygmomanometers.
Introduction
Intended Use
Welch Allyn aneroid sphygmomanometers are
used by professional healthcare providers and
individuals trained in auscultatory blood pressure
technique to determine systolic and diastolic blood
pressure in humans and animals.
Contraindications
Welch Allyn aneroid sphygmomanometers are
contraindicated for neonate use. Do not use with
neonatal cuffs or neonate patients.
Warnings
A warning statement in this manual identifies a
condition or practice which, if not corrected or
discontinued immediately could lead to patient
injury, illness, or death.
WARNING: If luer lock connectors are used
in the construction of tubing, there is a
possibility that they might be inadvertently
connected to intravascular fluid systems,
allowing air to be pumped into a blood
vessel. Immediately consult a physician if
this occurs.
WARNING: Do not allow a blood pressure
cuff to remain on patient for more than 10
minutes when inflated above 10 mm Hg.
This may cause patient distress, disturb
blood circulation, and contribute to the injury
of peripheral nerves.
WARNING: Safety and effectiveness with
neonate cuffs (sizes from neo 1 to neo 5) is
not established.
WARNING: Use only Welch Allyn
manufactured blood pressure cuffs and
accessories; substitution might result in
measurement error.
Connections
1. Connect one end of the coil tubing to the
sphygmomanometer valve at the bottom of the
unit.
2. Align and press the FlexiPort
TM
adapter onto
the cuff port.
3. Attach the inflation bulb to the tube (if needed).
Use alcohol to facilitate this.
4. Join the coil tubing to the cuff tube.
5. Verify an airtight seal is achieved at all
connection points.
Operation
Blood pressure measurements can be affected by
the position of the patient and their physiologic
condition. Before beginning a procedure, ensure
that the patient rests for at least five minutes, has
support of their back and feet, and does not cross
their legs. Passively support the patient’s lower
arm and keep the upper arm at heart level. The
procedure needs to take place in a quiet
environment with no talking. Failure to follow these
recommendations can result in inaccurate blood
pressure measurements.
1. Select cuff size appropriate for the patient’s
arm circumference. The applicable range, in
centimeters, is printed on each cuff.
Note: The “Artery Index Marker” on the cuff
should fall within the “Range” indicated on the
cuff. If the artery index marker falls short of range,
use a larger cuff to ensure accurate results. If the
artery index marker is past the range, use a
smaller cuff to ensure accurate results.
2. Wrap the cuff around the arm with the artery
index marker located over the brachial artery
and with the lower edge of the cuff 2.5 cm
above the bend in the elbow.
3. Inflate cuff rapidly to a level 30 mm Hg above
estimated (or palpatory) systolic pressure.
4. Partially open the valve to allow deflation at a
rate of 2 to 3 mm Hg per second. As the
pressure falls, note systolic pressure and
diastolic pressure detected with your
stethoscope.
5. Rapidly release the remaining pressure and
record measurements immediately. After a