• When performing high-frequency cauterization, do not allow the external surface of
the control section and its surroundings to become wet. Unintended leakage
current may cause operator and/or patient injury.
Set the brightness of the light source to the minimum level necessary to perform
the procedure safely. If the endoscope is used for a prolonged period at or near
maximum light intensity, vapor may be observed in the endoscopic image. This is
caused by the evaporation of organic material (blood, etc.) due to heat generated
by the light guide near the light guide lens. If this vapor continues to interfere with
the examination, remove the endoscope, wipe the distal end with lint-free cloths
moistened with 70% ethyl or 70% isopropyl alcohol, reinsert the endoscope and
continue the examination.
Holding and manipulating the endoscope
Figure 4.1
4.2 Insertion
1 The control section of the endoscope is designed to be held in the left hand. The
suction valve can be operated using the left index finger. The UP/DOWN angulation
control lever can be operated using the left thumb.
2 Maintain the insertion section using the right hand.
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