LOCATING AND REPLACING DEFECTIVE COMPONENTS
PERFORM AN OPERATIONAL CHECKOUT
Performing an operational checkout can reveal malfunctions which require
calibration or repair. There are no absolutely correct checkout procedures for the
Babybird 5900 Pediatric Ventilator. The ventilator case has instructions similar to the
following procedures printed on its side. They serve as a useful starting point for
calibrating the ventilator.
a. Initial Setup.
Verify the incoming pressure gauge reads between 45 and 55psi.
(2) Adjust the flow-control regulator until you obtain a flow-gauge reading of
15 liters per minute (lpm).
Turn the nebulization control fully clockwise.
Turn the inspiratory time-limit control fully clockwise.
Turn the expiratory-flow gradient fully clockwise.
Turn the mode selector rotary switch to spontaneous breathing.
b. Spontaneous Breathing.
(1) Turn the red arm on the outflow valve fully counterclockwise. The
proximal airway pressure (PAP) gauge should show at least a 20cm deflection.
(2) Turn the red arm on the outflow valve fully clockwise. The PAP gauge
should now show some positive pressure.
(3) Turn the expiratory-flow gradient counterclockwise. The PAP gauge
should now indicate more negative pressure.
If any symptom appears in the spontaneous breathing operations
mode, such as low pressure on the PAP gauge, that same symptom
will also appear in the controlled intermittent mandatory breathing
mode. Complete the entire checkout procedure, but return to the
spontaneous breathing mode for troubleshooting symptoms
common to both modes of operation.