User’s Manual for Omega 12Patient Monitor
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9 SpO2
9.1 SpO2 Description
SpO2(Oxygen saturation) is the percentage of saturated hemoglobin compared to total
hemoglobin measured by a two-wavelength pulse oximeter (also called functional or In Vivo
oxygen saturation). The SpO2 value is measured by light absorption technique: Red and infrared
light is emitted from the emitter side of the sensor. The light is partly absorbed when it passes
through the monitored tissue. The amount of transmitted light is detected in the detector side of the
sensor. When the pulsative part of the light signal is examined, the amount of light absorbed by
arterial hemoglobin is discovered and the saturation level can be calculated.
The SpO2 module processes the electrical signal and displays a “Pleth” waveform and digital
values for SpO2 and pulse rate.
This device is calibrated to display functional oxygen saturation.
SpO2 measurement is applicable to adults, pediatrics and neonates.
This monitor supports Infinium SpO2 module,Nellcor SpO2 module and Masimo SpO2
module.
Infinium SpO2: No logo on the module;
Nellcor SpO2: Nellcorlogo on the module;
Masimo SpO2: Masimologo on the module.
NOTE
Each SpO2 sensor connector can only be connected to the same type of extension cable. For
example, Masimo SpO2 connector can only be connected to Masimo SpO2 extension cable.
Functional testing equipment or SpO2 emulator can be used to evaluate the accuracy of PR
(pulse rate) measurement.
A functional tester or SpO2 emulator cannot be used to assess the accuracy of SpO2 sensor
and pulse oximeter for monitor. They must be verified with clinical data.
This monitor, and the SpO2 sensor, probe extension cable bundled with this equipment are all
verified in compliance with ISO80601-2-61.
9.2 SpO2 Safety Information
WARNING
When a trend toward patient deoxygenation is indicated, blood samples should be analyzed
by blood gas analyzer to completely understand the patient’s condition.
