Airway Adapter Tube; Figure 7. Model 9840Aat Airway Adapter Tube - Nonin 9847 Operator's Manual

Carbon Dioxide (CO ) Sensor and Airway Adapter Tube
2

Airway Adapter Tube

WARNING: Do not use the Model 9847 CO
old and weighing less than 10 kg (22 lb) due to the dead space introduced by the
airway adapter tube.
WARNING: Do not reuse the Model 9840AAT Airway Adapter Tube.
WARNING: If the airway adapter tube becomes contaminated or damaged, discard it
and replace it with a new one. Cleaning the interior will damage the anti-fog coating
and cause inaccurate readings.
WARNING: Do not use the airway adapter tube if the airway adapter tube is below
5 °C. An airway adapter tube that is below 5 °C may frost, causing a false reading.
Warm the airway adapter tube to above 5 °C by putting it in a warm place (for example
in your hands or in a vehicle) before use.
WARNING: The Model 9840AAT Airway Adapter Tube will increase dead space by
approximately 6 cubic centimeters (0.4 cubic inches); this may adversely affect
ventilation for patients with small tidal volumes.
CAUTION: An airway adapter tube that is between 5 °C and 10 °C may cause
!
inaccurate readings due to fogging of optical surfaces. It is recommended that the
airway adapter tube be warmed to above 10 °C before use.
The Model 9840AAT Airway Adapter Tube (Figure 7) is a single-use only, disposable adapter designed
to be placed between the endotracheal tube and the breathing circuit of intubated patients. The airway
adapter tube connects to the CO
may notice the connection by feel or sound).
The CO detector will not function properly unless the light emitting and detecting elements of the CO
2
sensor are properly aligned with the windows in the airway adapter tube.
(To Breathing
Device)
sensor so that the two devices do not move relative to each other (you
2
Windows
Figure 7: Model 9840AAT Airway Adapter Tube
detector for patients younger than 3 years
2
Reflector
(To Endotracheal
Tube)
Tabs
2
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