Chapter 5 Operation
45
HIGH FLOW INSUFFLATION UNIT UHI-3
To keep insufflation safer, the UHI-3 controls the gas flow during the first
25 seconds after the flow starts.
Therefore, the actual flow rate of the gas might not reach the maximum flow rate
for up to 25 seconds.
1.
Connect the insufflation tube to the CO
2
insufflation connector on the UHI-3.
2.
Before use, and after replacement of the gas cylinder, allow at least 2 L of
CO
2
gas to flow through the tube. This expels air from the system and
ensures that only CO
2
gas is insufflated (see Figure 5.2). Press the START
switch and feed at least 2 L of gas.
Figure 5.2
3.
Connect the luer-lock connector attached to the insufflation tube to the
veress needle’s connector.
4.
Open the stopcock on the veress needle or trocar.
5.
Using the abdominal pressure control switch, select the desired abdominal
pressure.
6.
Using the insufflation mode selector, select the insufflation mode.
7.
Select the flow rate using the flow rate control switches.
8.
If the veress needle is connected, confirm that LOW (0.1 - 1.0 L/min)
insufflation mode is selected.
9.
Press the start switch.
Insufflation mode
Gas flow rate (L/min)
LOW
0.1 – 1.0
MED
1.1 – 19
HIGH
20 – 35
START switch