User's Manual Part 3

10-18
E.2.3. Sampling
A sidestream gas analyzer continuously removes a gas sample flow from the respiratory
circuit, for example a nasal cannula, a respiratory mask or the Y-piece of an intubated
patient. The gas sample is fed through a sampling line to the gas analyzer. The sampled
gas is usually warm and humid, and cools down in contact with the wall of the sampling
line. Water therefore condenses in form of droplets on the inner wall of the sampling line.
These droplets could potentially occlude the sampling line and interfere with the gas
measurement.
The Nomoline Family
To overcome the shortfalls of current gas sampling solutions, the Nomoline Family
sampling lines have been developed for the ISA sidestream gas analyzers.
Unlike traditional solutions that remove water vapor and collect water in a container, the
Nomoline Family sampling lines incorporates a unique water separation
(NO MO isture)
section, which removes condensed water. The NOMO section also has a bacteria filter
which protects the gas analyzer from water intrusion and cross contamination.
Figure 4-3 . The NOMO section.
The Nomoline Family sampling lines are specially designed for 50 sml/min low sample
flow applications. The Nomoline Family sample lines have a very low dead space that
results in an
ultra-fast rise time, making measurements of CO
2
, N
2
O and anesthetic agents
possible even at
high respiratory rates. ISA sidestream gas analyzers are therefore
suitable for adult, pediatric and infant patients.
The Nomoline Family sampling lines are available in a wide variety of versions for both
intubated and spontaneously breathing patients and in both disposable and ReSposable
configurations - intubated patients can for instance be monitored using the disposable
Nomoline Airway adapter Set or a combination of the multiple patient use Nomoline
Adapter and a disposable Nomoline Extension / T-adapter.
The Nomoline Airway Adapter Set with integrated airway adapter can be used with
intubated patients.
The Nomoline with a male Luer Lock type connector is compatible with any normal
configuration that uses a female Luer Lock connector. When connecting to a T-adapter,