Olympus EVIS EXERA II - Air;Water, Suction, and Ultrasound Image Observation

Chapter 3 Preparation and Inspection
57
ULTRASOUND GASTROVIDEOSCOPE GF-UCT180
Do not obstruct the balloon water supply port with the cotton
thread. If the balloon water supply port is obstructed, the
balloon cannot be inflated or deflated (see Figure 3.27).
Figure 3.27
Balloon water supply port
Balloon attachment groove