User Manual for the Hopkins
®
Newborn & Mom Pulse Ox
hemoglobin of the arterial blood. SpO
2
is an important
physiological parameter to reflect the respiration function;
it is calculated by the following method:
SpO
2
= HbO
2
/ (HbO
2
+Hb) ×100%
HbO
2
are the oxyhemoglobins (oxygenized
hemoglobin), Hb are those hemoglobins which release
oxygen.
2. Principle of Measurement
According to the Lamber-Beer law, the light absorbance
of a given substance is directly proportional with its
density or concentration. When the light with certain
wavelength emits on human tissue, the measured intensity
of light after absorption, reflecting and attenuation in
tissue can reflect the structure character of the tissue by
which the light passes. Oxygenated hemoglobin (HbO
2
)
and deoxygenated hemoglobin (Hb) have different
absorption characteristics in the spectrum range from red
to infrared light (600nm~1000nm wavelength). By
using these characteristics, SpO
2
can be determined. SpO
2
measured by this oximeter is the functional oxygen
saturation -- a percentage of the hemoglobin that can
transport oxygen. In contrast, hemoximeters report
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Summary of Contents for Newborn & Mom Pulse OX 594020
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