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4
Monitoring
4.6
SpO
2
-
,
SpCO
,
SpMet monitoring (Option)
Page 50
A
rt.
no.
: 0-48-
0227
Rev.:
g
DEFIGARD/PHYSIOGARD Touch 7
4.6 SpO
2
-
,
SpCO
,
SpMet monitoring (Option)
• The pulse oximeter enables the continuous, non invasive monitoring of functional
oxygen saturation of arterial haemoglobin as well as the pulse rate. The signal
received from the patient sensor is used to calculate the patient's functional oxygen
saturation and pulse rate.
• The Masimo Rainbow SET® technology for SpCO and SpMet measurements is
based on the same principles as pulse oximetry. The Masimo Rainbow SET
technology uses a multi-wavelength sensor to distinguish between oxygenated
blood, deoxygenated blood, blood with carbon monoxide, blood with oxidized
haemoglobin and blood plasma. Once the Masimo Rainbow SET technology
receives the signal from the sensor, it calculates the patient's functional oxygen
saturation (SpO2), fractional concentration of carboxyhaemoglobin (SpCO),
fractional concentration of methaemoglobin (SpMet) and pulse rate.
• The display shows the continuous progress of the numeric SpO
2
value, pulse rate,
plethysmographic waveform and signal quality.
• The displayed plethysmographic curve is not proportional to the pulse volume.
• The update period of the measurement readings on the display is 0.2 seconds.
• According to the relevant standards, the temporary alarm suppression must not
exceed 2 minutes.
• Equipment used to perform functional tests cannot be used to give an indication as
to the accuracy of the SpO
2
module.
• SpO2, SpCO and SpMet are empirically calibrated in healthy adult volunteers with
normal levels of carboxyhaemoglobin (COHb).
• The peak wavelength and maximum optical power of the light emitted by the pulse
oximeter probes has to be considered in certain cases, e.g. when performing
photodynamic therapy. They are as follows:
– Range of peak wavelengths: 600 nm to 900 nm
– Maximum optical power output LNCS sensor: <15 mW
– Maximum optical power output Rainbow sensor: <25 mW
• Masimo sensors use LEDs that are non-laser with the SpO2 module.
• High-intensity extreme lights (such as pulsating strobe lights) directed on the
sensor, may not allow the pulse co-oximeter to obtain vital sign readings.