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Trilogy200 clinical manual
38
A sudden change in patient flow will cross the shape signal, causing
the pressure level to change.
Pressure
Flow
IPAP
EPAP
Shape
Signal
Estimated
Patient
Flow
Trigger to
IPAP
Crossover
Point
Cycle to
EPAP
Crossover
Point
Tracking the patient’s flow pattern with the Shape Signal provides a
sensitive mechanism to trigger to inspiration or cycle to expiration in
response to changing breathing patterns and circuit leaks.
Shape Signal