Dräger Narkomed 2B - Respiratory Volume Monitoring; Overview

Section 5 - Operation
Respiratory Volume Monitoring
Overview
Respiratory volume is measured by a respiratory sensor which is
attached to the expiratory valve and mounted to the top of the absorber
assembly. The sensor uses a positive displacement rotating-lobe impeller
that generates electronic pulses in response to the patient’s expiratory
flow. These pulse patterns are converted into meaningful readings for
minute volume, tidal volume, and respiratory rate displays.
INSPIRATOR
Y
VALVE DOM
E
OP15751
EXPIRATORY
VALVE DOME
RESPIRATOR
Y
VOLUM
E
SENSO
R
TO BREATHING
SYSTEM SENSOR
INTERFACE
PANEL
CAUTION: Although the Narkomed 2B is designed to minimize the
effects of ambient radio-frequency interference, the
functioning of the respiratory volume monitor may be
adversely affected by the operation of electrosurgical
equipment or short wave or microwave diathermy
equipment in the vicinity.
NOTE: Sudden, irregular expiratory flow may cause erratic tidal
volume and respiratory rate displays. To avoid such erroneous
measurements, defer reading the display until a full minute
has elapsed after the irregular flow has stopped.
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