Welch Allyn TR-2 User Manual
Tycos Hand Aneroid
Sphygmomanometer
Instructions
TR-2 Hand Aneroid
Operating Instructions
CUFF HOSE
CONNECTOR
AIR RELEASE
VALVE
SPHYGMOMANOMETER
SECTION
FRONT
1. Seat the patient and make him/her as relaxed and comfortable as possible with the arm free of clothing. Rest arm on a steady, smooth surface at heart level and slightly flex the elbow.
2. Check to see that the pointer rests within the zero (oval) indicator on the dial face. If not, return the unit to Tycos for recalibration.
3. Select the appropriate cuff size for patient’s arm. NOTE: Index line on cuff should
fall within the double arrow range. If index line falls short of range, use a larger cuff
to insure accurate results, If the index line is past the range, use a smaller cuff to
insure accurate results.
4. Wrap cuff around arm with “artery” symbol located over the brachial artery and with lower border about 2.5 cm above antecubital crease.
5. With trigger in “out” or “pump” position (see Diagram A), rapidly pump bulb to inflate cuff. Inflate to about 30 mmHg above the estimated (or palpatory) systolic pressure. NOTE: Verify the trigger is in “out” position or cuff will not inflate.
6. With the bell or diaphragm of a stethoscope (not included with this sphygmomanometer) lightly applied over the brachial artery, watch manometer, and deflate cuff
by pressing lightly on trigger until tension is felt. Bleed rate increases dramatically
as trigger is depressed beyond “tension point”. During the measurement phase,
attempt to keep the deflation rate at 2 to 3 mmHg per second. NOTE: Inflate the
cuff rapidly then quickly begin pressure deflation to avoid hazards that may occur
due to prolonged overinflation of the cuff.
7. As the pressure falls, note systolic pressure at the first appearance of repetitive
sounds (Phase 1)1.
8. Note diastolic pressure at the point when Korotkoff sounds disappear (Phase V)2.
9. Pull trigger in fully to lock it in maximum bleed or “dump” position (see Diagram A). This allows for complete deflation of cuff.
10.Push index finger upward to return trigger to “out” or “pump” position.
¹ Perloff, D., et al, Human Blood Pressure Determination by Sphygmomanometry, Dallas: 1994, pp 16-17.
² IBID, p.17.
CAUTION - Do not allow the cuff to remain on a patient for more than 10 minutes
when inflated above 10 mmHg. This may cause patient distress, disturb blood circulation, and contribute to the injury of peripherial nerves.
ZERO
RANGE
BULB
SIDE
TRIGGER
DIAGRAM A
OUT
(PUMP)
IN
(DUMP)
Loading...