Hoffrichter 5CPD10, User Manual

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60 Chapter 5: Therapy Modes
T mode
Main features
•
Pressure controlled
•
Device or patient triggered
•
Time controlled
•
Spontaneous breathing possible when trigger function enabled
In this therapy mode, therapy is controlled exclusively by the device when the trigger
function is disabled. Spontaneous breathing on the patient’s part is not possible. The
ventilation period is based on the set frequency and a defined I:E ratio.
Please note: During the exhalation phase, no negative pressure (vacuum) is generated.
20
10
0
0 5 10 15 20 25
IPAP
EPAP
t (s)
p (hPa)
6 s 6 s 6 s
Ⓜ Ⓜ Ⓜ Ⓜ
IPAP = 20 hPa EPAP = 8 hPa I:E = 1:2 (2 s : 4 s) f = 10 bpm
Ⓜ
Mandatory ventilation
Figure 22: Diagram of T mode without trigger function
0
5 10 15 20 25
t (s)
(l/s)
Ⓜ
V
Ⓜ
Ⓜ Ⓜ
Figure 23: Flow diagram of T mode without trigger function
If the trigger function is enabled, the patient can trigger the next inspiration by spon-
taneous breathing efforts during the expiration phase, which increases the frequency.