The right to make design modifications is reserved.
The measured values specified apply to ATPD conditions.
No part of the therapy devices contains latex.
Flow at max. speed with bacteria
filter at 0 hPa:
Tolerance
Leakage ventilation: 320 l/min
Single patient circuit with patient valve: 330 l/min
Double patient circuit with patient valve (VENTIlogic LS only):
330 l/min
±15 l/min
Filtering and smoothing
techniques
– Actual values:
recalculated after each breath (no averaging)
– Mean values:
calculated across all breaths since the device started
– AirTrap statistics:
calculated across all breaths since the device was started up.
– Leakage:
calculated continuously, updated after each breath
– Volume compensation:
In the "slow" stage, the device checks after 8 breaths whether
the target volume has been reached and changes the pressure by
0.5 hPa. If the pressure reaches a corridor around the target
volume, the device switches to precise control. In the "medium"
stage, the device checks after 5 breaths whether the target
volume has been reached and changes the pressure by 1.0 hPa. If
the pressure reaches a corridor around the target volume, the
device switches to precise control. In the "fast" stage, the device
checks after each breath whether the target volume has been
reached and changes the pressure by 1.5 hPa. If the pressure
reaches a corridor around the target volume, the device switches
to precise control
– Physiological alarms:
“low” alarms are triggered when the relevant alarm limit has
been undershot in at least three of the last five breaths. The
alarms are automatically reset as soon as the relevant alarm limit
has been exceeded again in at least three of the five following
breaths. “High” alarms are triggered and reset correspondingly
when the alarm limit is exceeded.
– display Ti, Te, frequency, Ti/T: low-pass filter
– alarm frequency: low-pass filter
– pressure display in the P(t) and PV loop display: low-pass filter and
gradient filter
Continuous pressure algorithm Pressure is monitored by means of a pressure sensor. If the therapy
pressure does not change its value by at least ± 8 % for at least 15
seconds, the alarm is triggered.
Therapy device
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