2.7 Control Valves
<Suction Valve>
Used for suction from the instrument channel outlet at the
distal end. Also used to discharge water from the balloon.
When the suction valve is pressed halfway, suction
continues while the valve is pressed.
When the suction valve is fully pressed, water is
discharged from the balloon.
<Air/Water Valve>
Used to supply air or water from the nozzle on the distal
end onto the objective lens. Also used to feed water to the
balloon.
To supply air, stop the hole in the center of this valve with
a finger.
When the air/water valve is pressed halfway, the water is
supplied.
When the air/water valve is fully pressed, water is supplied
to the balloon.
Stopping the hole with a finger
Half press
Full press
Suction valve
Suctions water from the
instrument channel outlet.
Suctions water from the
balloon evacuation channel.
Air/water valve
Supplies air from the nozzle
at the distal end.
Supplies water to the nozzle
at the distal end.
Supplies water to the balloon
water feed channel.
Operation of the suction valve and air/water valve
Stop the hole with a finger.
(Only on the air/water valve)
Press the valve halfway.
(Half press)
Press the valve fully.
(Full press)
Suction Valve
Air/Water Valve
Chapter 2 Product Overview
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