3100B HFOV Operator Manual - CareFusion

36 3100B HFOV
The Airway Pressure Monitor processes the instantaneous airway pressure measurements of its
pressure transducer to derive the following:
1. Mean airway pressure (Pa)
2. Oscillatory peak minus oscillatory trough pressure (∆P)
Mean Airway Pressure is essentially an arithmetic mean of the airway pressure measurement. It is
obtained by filtering the instantaneous pressure signal with a DC to 0.5 Hz. low pass filter.
The ∆P reading is obtained by subtracting the oscillatory trough pressure from the peak pressure.
A detailed list of specifications for the Airway Pressure Monitor is contained in Chapter 3,
Specifications. A detailed description of the use of its control and display is contained in Chapter 5
Location and Function of Controls.
The Electronic Control and Alarm Subsystems
This subsystem contains the Oscillator Subsystem Controls and the alarm functions. It consists of
various electronic circuits and logic elements. It integrates information received from the Airway
Pressure Monitor to react in a fashion safest for the patient. It utilizes this information to orchestrate the
activity of the Oscillator Subsystem and the Pneumatic Logic and Control Subsystem.
The following are the Oscillator Subsystem controls which form a part of the Electronic Control and
Alarm Subsystem:
Power
% Inspiratory Time
Frequency–Hz
Start/Stop
The function of these controls is described in detail in Chapter 5, Controls.
The subsystem also contains the following indicators for reporting on the Oscillator Subsystem status:
Start/Stop LED
∆P digital meter
% Inspiratory Time digital meter
Frequency digital meter
The coordination of these indicators with the Oscillator Subsystem controls is described in detail in
Chapter 5.
767164–101 Rev. R