User's Manual Part 1

1-13
The pulse oximeter may be used during electrocautery, but this may affect the accuracy or
availability of the parameters and measurements.
The pulse oximeter should not be used for arrhythmia analysis.
If using pulse oximetry during full body irradiation, other than in MRI, keep the sensor out of the
radiation field. If the sensor is exposed to the radiation, the reading might be inaccurate or the
device might read zero for the duration of the active irradiation period.
A functional tester cannot be used to assess the accuracy of the pulse oximeter.
High-intensity extreme lights (such as pulsating strobe lights) directed on the sensor, may not
allow the pulse oximeter to obtain vital sign readings.
At higher sensitivity settings, performance of the "SpO2 Probe Off" detection may be
compromised. If the device is in this setting and the sensor becomes dislodged from the patient,
the potential for false readings may occur due to environmental "noise" such as light, vibration,
and excessive air movement.
Do not loop the fiber optic sensor cabling into a tight coil or wrap around the device, as this can
damage the patient cabling.
1.3.7.4. CO
2
Only and Multi-Gas Systems
The 3880 MRI Patient Monitoring system offers two methods of gas monitoring, consisting of an
integrated CO2/Respiration only option, and an external Multi-Gas (P/N 3886) option. The 3886
Multi-Gas Unit provides measurement of CO2/ Respiration, Fast ‘Parametric’ O2, N2O with
automatic identification and measurement of a two gas mixture of five possible anesthetic
agents. The unit is based upon the Masimo/Phasein ‘OR+’ sidestream gas analyzer. This unit
is intended to be located in magnetic fields of less than 600 Gauss, such as direct mounting to
an MR Anesthesia machine. See appendix E for more details of both methods of gas analysis.
The integrated CO2/Respiration only solution, utilizes a solid state gas detection system as well
as a non-magnetic piezo sampling pump, for operation to 30,000 Gauss. This CO2 only unit is
not for use with anesthetic agents.
The accessory items for the built in CO2/Respiration only option can be found in section 9.4,
with the accessories for use with the 3886 Multi-Gas Unit in section 9.5. The accessories have
different types of connections so that the Multi-Gas Unit accessories only can connect to the
3886 Multi-Gas Unit, while the CO2 only accessories can only mate with the built in CO2 only
option.
Always select the appropriate CO
2
tubing set for the patient being monitored. Verify that the
patient’s breathing efforts and timing coincide with the monitor’s waveform before completion of
the patient set-up.
Frequently inspect the CO
2
patient tubing for proper gas flow. Avoid kinking of the CO
2
patient
tubing that can result in leaking, reduction, or cut-off of the sample gas flow. Inaccurate gas
measurements could result.
During gas monitoring, a water vapor evacuating tubing (Nafion) which is included in the gas
sample circuit, reduces water vapor content of the patient's exhaled breath.
For proper operation, check the CO
2
calibration during routine service. Routine calibration