GE B20, Руководство пользователя

Страница: 88 / 160

84
• A pulse oximeter should be considered an early warning device.
As a trend toward patient deoxygenation is indicated, blood
samples should be analyzed by a laboratory CO-oximeter to
completely understand the patient's condition. Check that the
pulse oximetry waveform is physiological in shape to ensure
waveform quality and minimize noise spikes caused by motion
conditions. (Not applicable when monitoring SpO
2
with Masimo
SET technology).
• Interfering substances can affect the SpO
2
reading.
• Improper sensor placement can affect the SpO
2
signal and
readings.
• Do not allow tape to block the probe light detector.
• During electrosurgery the SpO
2
measurement results may be
incorrect.
• Using the Maximum sensitivity setting delays the “Probe off”
Patient detection alarm.
• If you deactivate the “SpO2 probe off” alarm, keep the patient
under close surveillance.
Cautions
• Prolonged monitoring or incorrect sensor application can cause
skin irritation or impaired circulation. Recommend checking
probe site every four hours (more frequently for poor perfusion
or neonate). Refer to instructions supplied with sensor.
Measurement limitations
−
The pulse oximeter cannot distinguish between oxyhemoglobin
and dyshemoglobins.
−
Poor perfusion may affect the accuracy of measurement when
using the ear probe.
−
To avoid erroneous readings, do not use a blood pressure cuff or
arterial blood pressure measurement device in the same limb as
the sensor.
SpO
2
Configuration
The monitor have three options for SpO2 configuration: GE TruSignal,
Masimo and Nellcor. The set up will be preconfigured by the
manufacturer according to your choice. Different setup may have
different performance, please refer to
"Technical specifications" for
more details.
Patents
The device is covered one or more below USA patents or
international equivalents:
Masimo
5,758,644,6,011,986,6,699,194,7,215,986,7,254,433,7,530,955 and
other applicable patents listed at: http://www.masimo.com/
patents.htm.
Nellcor
5,485,847; 5,676,141; 5,743,263; 6,035,223; 6,226,539; 6,411,833;
6,463,310; 6,591,123; 6,708,049; 7,016,715; 7,039,538; 7,120,479;
7,120,480; 7,142,142; 7,162,288; 7,190,985; 7,194,293; 7,209,774;
7,212,847; 7,400,919.