Safety Functions
Automatic venting system
EN
Insufflation source
Overpressure
"Occlusion" alert
50
8
Safety Functions
8.1
Automatic Venting System
The device is equipped with an automatic venting system.
When the insufflator detects an overpressure it automatically activates the vent-
ing system. The venting system releases gas from the cavity until the set nominal
value has been reached again.
The automatic venting system can be configured individually in the user menu
for each indication.
If the venting system is activated, the safety threshold for the release is 3 mmHg
above the set pressure with a delay of 3 seconds.
Safety threshold and delay can be set in user menu.
If the venting valve is turned off, the message "Venting valve deactivated!" is dis-
played and you will hear an acoustic signal as soon as the indication is loaded.
Even if the valve is turned off, the venting function runs automatically and with-
out delay, if the abdominal pressure is greater than 45 mmHg.
The manufacturer advises against using additional, non-pressure controlled in-
sufflation sources during minimally invasive surgical procedures.
The use of CO
-cooled lasers and argon beamers can lead to values exceeding the
2
recommended and safe pressure rating.
WARNING!
Additional insufflation sources/automatic venting system
Make sure the automatic venting system is activated (see chapter 7 Menu). The
use of additional insufflation sources increases the intra-abdominal pressure.
Continuously monitor intra-abdominal pressure over the course of the entire in-
sufflation if additional sources are used.
WARNING!
The venting rate of the automatic venting system is limited. Always monitor the
actual pressure when using additional insufflation sources.
If the overpressure cannot be reduced by the automatic venting system within 5
seconds, the display depicts Overpressure. An acoustic signal is emitted.
Once the nominal pressure limit of the used indication has been reached/exceed-
ed the display depicts the message Maximum pressure reached! A warning signal
is emitted at the same time.
If the actual pressure exceeds 45 mmHg for more than 10 seconds the display de-
picts the message Excessive Overpressure along with an acoustic signal.
8.2
Occlusion
When tube, Veress needle, or trocar are blocked, the message "Occlusion!" is de-
picted and a warning signal is emitted. The actual pressure display depicts 0.
The acoustic signal can be turned on/off in the user menu.
CAUTION!
The pressure in the body cavity cannot be measured during an occlusion!