Справочник Пользователя для Innokas Yhtyma Oy VC150
8-14
VC150 Vital Signs Monitor
KO00065K
Masimo SpO
2
: Masimo rainbow
®
SET
®
SpO
2
and special features
Masimo rainbow
®
SET
®
SpO
2
and special features
Masimo Signal Extraction Technology (SET) pulse oximetry utilizes parallel
engines and adaptive digital filtering. The Masimo SET signal processing
algorithm, Discrete Saturation Transform
engines and adaptive digital filtering. The Masimo SET signal processing
algorithm, Discrete Saturation Transform
®
(DST
®
), in parallel with Fast Saturation
Transform (FST
®
), identifies the noise, isolates it and, using adaptive filters,
cancels it. It then reports the true arterial oxygen saturation for display on the
monitor.
monitor.
Functional oxygen saturation (SpO
2
) of arterial blood is noninvasively and
continuously monitored using pulse oximetry technology from Masimo
rainbow
rainbow
®
SET
®
. Functional SpO
2
is the ratio of oxygenated hemoglobin to
hemoglobin that is capable of transporting oxygen. This ratio, expressed as a
percentage, is shown in the SpO
percentage, is shown in the SpO
2
window, which is continually updated. If the
signal quality is low for any Masimo parameter, the corresponding
measurement value is dimmed. This is typical when the sensor is connected to a
patient and a new measurement begins. As the signal quality is determined to
be reliable, the values turn to normal brightness.
measurement value is dimmed. This is typical when the sensor is connected to a
patient and a new measurement begins. As the signal quality is determined to
be reliable, the values turn to normal brightness.
The SpO
2
parameter is indicated for use in continuous, noninvasive monitoring
of functional oxygen saturation and in providing pulse rate data as a component
of the monitor. This device is not designed, sold, or intended for use except as
indicated.
of the monitor. This device is not designed, sold, or intended for use except as
indicated.
rainbow Pulse CO-Oximetry Technology
rainbow Pulse CO-Oximetry technology is governed by the following principles:
1. Oxyhemoglobin (oxygenated blood), deoxyhemoglobin (non-oxygenated
blood), carboxyhemoglobin (blood with carbon monoxide content),
methemoglobin (blood with oxidized hemoglobin) and blood plasma
constituents differ in their absorption of visible and infrared light (using
spectrophotometry).
methemoglobin (blood with oxidized hemoglobin) and blood plasma
constituents differ in their absorption of visible and infrared light (using
spectrophotometry).
2. The amount of arterial blood in tissue changes with pulse
(photoplethysmography). Therefore, the amount of light absorbed by the
varying quantities of arterial blood changes as well.
varying quantities of arterial blood changes as well.
600
800 1000
1200
1400
1600
Wavelength (nm)
Carboxyhemoglobin
Oxyhemoglobin
Methemoglobin
Absorption (l/mm)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
Deoxyhemoglobin
Plasma
Absorption Spectra