PHILIPS Respironics Trilogy 100 Clinical Manual page 82

Trigger Type
The device can be set to trigger breaths based on automatic flow
thresholds or specific flow settings. You can select either Auto-Trak
or Flow Trigger as the Trigger Type. When Auto-Trak is selected, the
Auto-Trak trigger initiates based on automatic flow thresholds. When
Trigger Type is set to Flow Trigger, Flow Trigger Sensitivity and Flow
Cycle Sensitivity become active, and the trigger initiates based on the
Flow Trigger Sensitivity setting.
Flow Trigger Sensitivity
If you set the Trigger Type to Flow Trigger, the Flow Trigger Sensitivity
setting displays. You can increase or decrease the setting from 1 to 9
l/min in 1 l/min increments.
The flow trigger initiates when the patient's inspiratory effort creates
a flow equal to or greater than the flow sensitivity setting.
Flow Cycle Sensitivity
If you set the Trigger Type to Flow Trigger, the Flow Cycle Sensitivity
setting displays. You can increase or decrease the setting from 10 to
90 percent (%) in 1% increments.
As flow begins to decrease during inspiration, if the patient flow is
less than the flow cycle set point, the device will cycle
to expiration. For example: if the flow cycle is set at
75%, when the flow has decreased by 25% of the peak
flow, the device will cycle to the EPAP/PEEP level.
Note: Trigger Type is not
available when an Active PAP
circuit is selected. Flow trigger is
the triggering method used for
Active PAP circuits.
Flow Cycle Sensitivity
Note: A flow cycle sensitivity
set at 90% will result in the
most sensitivity. If the flow cycle
sensitivity is set at 10%, this will
result in the least sensitivity.
Chapter 5 Viewing and Changing Settings
75