FEAS 3850, User Manual

Page: 46 / 72

DEFIBRILLATOR MONITOR
Mod. 3850B-BIPHASIC - USER MANUAL
Page 40 of 63
110
Verify that displays the message "Low
Perfusion". CHECK = OK.
-- -- -- -- -- --
111 Register Pulse Rate with Low Perfusion. -- -- -- 75ppm 72 78
112 Register SpO
2
with Low Perfusion. -- -- -- 95% 93 97
113
If you have Cardiosat100 simulator, skip to
Item122. CHECK = OK.
-- -- -- -- -- --
114
Simulate Movement (95% SpO
2
- 75ppm).
CHECK = OK.
-- -- -- -- -- --
115
Verify that displays the message "Movement".
CHECK = OK.
-- -- -- -- -- --
116 Register Pulse Rate with Movement. -- -- -- 75ppm 70 80
117 Register SpO
2
with Movement. -- -- -- 95% 93 97
118
Simulate Neonatal (90% SpO
2
- 180ppm).
CHECK = OK.
-- -- -- -- -- --
119 Select PATIENT=NEONATE. CHECK = OK. -- -- -- -- -- --
120 Register Pulse Rate with NEONATAL. -- -- -- 180ppm 177 183
121 Register SpO
2
with NEONATAL. -- -- -- 90% 87 93
3.6.6. MEASUREMENT PRINCIPLES
The SpO
2
module measures the SpO
2
content with a continuous non-invasive method to measuring oxyhemoglobin saturation. The
principle of measurement is determining SpO
2
under cyclic congestion status of the tissues during pulsation. The method determines
how much light emitted by the sensor light source penetrates the patient’s tissue (finger or ear, for example) and reaches the receiver.
The amount of light penetrating the tissue depends on many factors, many of them are constant; but one of them, the blood flow, varies
with time as it is pulsed, therefore, the oxygen saturation of arterial blood can be calculated by measuring light absorption during
pulsation. The pulsation control system provides a pulse waveform and a pulse signal. For the measurement, the wavelength of red light
is 660nm and 940nm for infrared light. The optical power delivered to the patient is 4mW (milliwatts).
3.6.7. OXIMETER ALARMS
ALARMS Option: Select the alarms limits for SpO
2
and Pulse Rate. Position the cursor with the keys on the alarm limit to be
changed and press the keys to adjust the desired value.
SpO
2
Alarm: Sets upper and lower limits of SpO
2
at which will alarm is activated.
Lower limit alarm for SpO
2
:
ATTENTION! The lower limit alarm for SpO
2
is, by default, 85% and will be operational from the first pulse detection.
Using the keys, position the cursor over the lower limit (from SpO
2
alarm section, the bottom) and with the keys select
the minimum value of oxygen saturation for the activation of the alarm; between 0% and 100% in 1% steps; if the upper limit alarm for
SpO
2
is selected, the top value of the lower limit will be (upper limit alarm for SpO
2
) - 1%.
Upper limit alarm for SpO
2
:
Using the keys, position the cursor over the upper limit (from SpO
2
alarm section, the top) and with the keys select the
maximum value of oxygen saturation for the activation of the alarm; between 0% and 100% in 1% steps; if the lower limit alarm for SpO
2
is selected, the lower value of the upper limit alarm for SpO
2
will be (lower limit alarm for SpO
2
) + 1%.