
DMR V4C-O2E Oxygen Mixer - 3.3 V-303-MAY-2022(Quick Start Guide)
Operation
1) Calibrate the FiO2 Sensor
CAUTION: If using the V4C-560™FiO2sensor kit, the sensor must be calibrated once prior to ventilation and again after
60 minutes of use to account for the warming of the sensor. Failure to recalibrate after 60 minutes could result in
incorrectFiO2readings. If desired, the sensor can be recalibrated throughout this warming period to ensure the most
accurate readings during this initial phase.
a. Remove the FiO2 sensor from the T-connector and expose to room air, shake the sensor for 15-30s,
and calibrate the FiO2sensor.
b. Start ventilating with desired settings.
c. Use the adjustment knob on the front of the oxygen mixer to adjust the FiO2percentage delivered.
Clockwise turning increases the FiO2percentage, while counter-clockwise decreases it. Monitor the
FiO2 on the compatible ventilator. Stop at the desired FiO2.
CAUTION: It may take a few breaths after FiO2adjustment for the FiO2reading to settle. Wait for a few breaths before
adjusting further.
d. After a minimum of 1 hour of ventilation, recalibrate the sensor as described below.
❖While ventilation continues, remove the FiO2sensor from the T-connector and expose it to ambient air.
❖Using a gloved hand or tubing cap, ensure the T-connector opening is plugged during this time to
ensure uninterrupted breath delivery to the patient.
❖Shake the sensor in ambient air for 45 seconds.
❖Recalibrate the sensor in air.
❖Return sensor to the T-connector.
CAUTION: The duration of shaking of the sensor affects the accuracy of calibration, therefore following the directions will
ensure the most accurate readings of the sensor. If shaking is less than the suggested amount residual oxygen on the sensor
may affect calibration. If the sensor is shaken for longer than recommended the sensor will cool, impacting the calibration.
2) To change the FiO2during ventilation, gradually turn the O2 knob clockwise to increase the FiO2or
counterclockwise to decrease the FiO2.
3) Monitor the FiO2on the compatible ventilator. Stop at the desired FiO2. Wait a few breaths for FiO2to stabilize
before re-adjusting.
4) Adjust the High and Low FiO2 alarms to reflect the new FiO2percentage. It is recommended to set the alarms within
5% of the required FiO2. Consult the instructions of the compatible ventilator or the FiO2sensor to set and adjust
these alarms.
WARNING: The delivered FiO2may be affected by a change in breath settings. When settings are adjusted manually or
changed due to patient status, check the FiO2being delivered and adjust the oxygen knob as needed. For this reason,
appropriate setting of the High and Low FiO2alarms is required.
NOTE: Patient lung pathology and the settings selected affect the maximum achievable FiO2. Some use cases will result in a
maximum achievable FiO2 <100%. If the desired FiO2cannot be reached,switching to a volume control mode, using a double
limb circuit, reducing the driving pressure, or decreasing the breathing rate may increase the FiO2delivered.If a patient
requires no less than 100% FiO2in these use cases, consider alternate means of ventilation.
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Baylis MedTech, V4C-560, and V4C-O2E are trademarks or registered trademarks of BaylisMedical
Technologies Incin Canada and/ or other countries. All other brandsare trademarks of their respective owners.
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2645 Matheson Blvd. East, Mississauga,Ontario L4W 5S4 Canada
www.baylismedtech.com [T]+1 (905)948-5800