Hoffrichter 5CPD10, User Manual

Page: 62 / 130

62 Chapter 5: Therapy Modes
ST mode
Main features
•
Pressure supported
•
Device or patient triggered
•
Flow controlled
•
Background frequency
•
Spontaneous breathing possible
If the patient is capable of breathing on their own, the device works in S mode. If the
patient is no longer able to breathe spontaneously, the device automatically enters T
mode and ventilates the patient with the set frequency. The mode is switched to T mode
after a set delay time lapses.
20
10
0
0 5 10 15 20 25
IPAP
EPAP
t (s)
p (hPa)
➊
➋
➊
➌
Ⓐ Ⓜ Ⓐ Ⓐ
IPAP = 20 hPa EPAP = 8 hPa  spontaneous breathing
➊
Background frequency
➋
Apnoea Time > expiration time
➌
Apnoea Time < Expiration time
Ⓜ
Mandatory ventilation
Ⓐ
Pressure controlled supported ventilation
Figure 26: Diagram of ST mode
0
5 10 15 20 25
t (s)
(l/s)
Ⓐ Ⓜ Ⓐ Ⓐ
V
Figure 27: Flow diagram of ST mode