ResMed Elisee 350 Clinical Manual page 23

Influence of the choice of flow shape in ACV mode with the I:E ratio or the
Ti set
In this case, the flow decreases at the rate of one of four downward gradients: 2, 3, 4 or 5.
V
5
4
3
2
1
The Ti remains constant regardless of the flow shape selected (
varies.
Influence of the choice of flow shape in ACV mode with the
The flow also decreases at the rate of one of four different gradients based on a percentage of
°
the max:
V
Vmax
°
The max remains constant regardless of the flow shape selected (
Ti varies.
Apnea time Tapnea (s), specific to pressure support
Period of time after which, if inspiration is not initiated by the patient, the ventilator delivers an
inspiratory cycle to the patient. The apnea time begins at the point when the last cycle was
initiated by the patient. Example of apnea ventilation in PACV mode (Pi = 15 cm H
P
Inspiration triggered by the patient
NOT013281-8
5: Max. flow = constant flow + 100%
4: Max. flow = constant flow + 75%
3: Max. flow = constant flow + 50%
2: Max. flow = constant flow + 25%
1: Constant flow
t (s)
t (s)
Decreasing flow with a downward gradient set at up to 75% of
Downward gradient set at up to 50% of
Downward gradient set at up to 25% of
Downward gradient set at up to 0% of
t (s)
t (s)
Tapnea (example:
20 s)
Apnea ventilation
1 3
2
). Only the
4 5
°
max set
V
°
°
max
°
max
°
max
1
2
4
5
O):
2
Patient effort
t
°
max
max
3
). Only the
Ventilation 17/102