The core skills of endoscopic operation include mastering the correct holding and advancing/retreating techniques, precise field of view adjustment, stable endoscope control, and proficient pathological identification ability. Simultaneously, adjustments must be made flexibly based on patient position and organ anatomy to ensure safe and efficient operation.
Basic Operating Skills
Holding and Advancing/Retreating Techniques
One-handed Holding: Hold the operating part with the left hand, using the thumb to control the up/down angle knob, the index finger to operate the air/water injection button, and the remaining fingers to stabilize the endoscope.
Advancement/Retreating Principle: Follow the principle of "retreating for observation, advancing for supplementary purposes," avoiding excessive insertion that could cause mucosal damage. Advance by coordinating the rotation of the endoscope (clockwise/counterclockwise) with the angle adjustment knob.
Field of View Adjustment and Air Injection Control
Balance of Air Injection and Suction: Inject air in small amounts multiple times to avoid over-inflation that could lead to abdominal distension or perforation. When suctioning secretions, keep the endoscope clean to prevent blurred vision.
Endoscope Angle Adjustment: Flexibly adjust the field of view using the angle knob. When encountering curved intestinal segments or narrow cavities, "straighten the endoscope" to reduce tension.
