Welch Allyn LC101 CO2 Module - User Manual - Manual (Page 14)

LC101 CO
2
Module OEM Implementation Manual
Page 14 Confidential Welch Allyn OEM Technologies
Inlet and Exhaust Tubing
The internal inlet tubing provides the means to transport the gas sample from the watertrap
receiver to the sidestream bench. The inlet tubing includes the tubing, connectors and a
secondary shutoff pellet. Attachment of the inlet tubing to the watertrap receiver is via a Luer®
connector. A secondary shutoff pellet is attached in line with the inlet tubing to provide additional
backup.
The exhaust tubing provides the means to expel the exhaust gas. A 5
µm screen, or filter, is
positioned in line with the exhaust tubing to muffle, or reduce the pump noise.
CO
2
Sample Line and Cannula
The CO
2
sample line, or sample line, is used to transport the gas sample from the patient to the
watertrap assembly.
NOTE The sample line is not included with the LC101 Module and may be ordered separately
from Welch Allyn OEM Technologies or other suppliers.
For a non-intubated patient, the sample line connects to a cannula that is positioned on the
patient. A variety of cannulas are available to accommodate patient requirements. Nasal, oral/
nasal and divided cannulas which deliver oxygen and sample CO
2
simultaneously may be used.
NOTE Cannulas are not included with the LC101 Modules and may be ordered separately
from Welch Allyn OEM Technologies or other suppliers.
For an intubated patient, the sample line connects to the patient’s breathing circuit.
Sample connections for both intubated and non-intubated patients are shown below.
Sample line
To cannula
Elbow connector
to breathing
apparatus
Typical Connection to Non-Intubated Patient Typical Connection to Intubated Patient
Watertrap
Sample line
Watertrap