Philips Trilogy Evo Universal - Page 20

Instructions for Use | Therapy Modes and Controls
Control Modes 20
A/C-VC: Assisted/Control-Volume Control
DESCRIPTION:
The A/C-VC mode provides volume-controlled mandatory and assist breaths. When the Trigger Type is set to Off, both triggering and cycling are
performed by the ventilator. When the Trigger Type is not Off, then the trigger can be performed by the vent or patient and the cycle is always
performed by the ventilator. To deliver the set volume in the set time, the ventilator alters the flow rate. The flow pattern setting defines the shape
of the flow delivery pattern.
SETTINGS:
Setting Name
Description
Tidal Volume
Set inspiratory volume
PEEP
Positive end expiratory pressure
Inspiratory Time
Length of the inspiratory phase
Breath Rate
Minimum rate of mandatory breaths per minute
Flow Pattern
Sets the shape of the waveform as a ramp or square
Trigger Type
• Auto-Trak
• Sensitive Auto-Trak (passive circuits only)
• Flow Trigger (Passive, Active PAP, Active Flow, or Dual Limb circuits)
• Off
Flow Trigger
Sensitivity
This control is available when the trigger type is Flow Trigger. The flow trigger initiates when the
patient’s inspiratory effort creates a flow equal to or greater than the flow trigger sensitivity setting.
Flow Cycle
Sensitivity
This control is available when the trigger type is Flow Trigger.
As flow begins to decrease during inspiration, if the patient flow is less than the flow cycle set point, the
device cycles to expiration.
SETTABLE ALARMS:
• Circuit disconnected
• High tidal volume
• Low tidal volume
• High minute ventilation
• Low minute ventilation
• High respiratory rate
• Low respiratory rate
• High inspiratory pressure
• Low inspiratory pressure
ILLUSTRATION