Technical skills and training of upper gastrointestinal endoscopy for new beginners

Figure 7 Intubation of scope from oral cavity into pharynx. A: The examiner is inserting a mouthpiece into the mouth of the examinee (dotted circle). The pillow (arrow mark) helps keep the neck and head straight with the trunk; B: To ensure a smooth insertion of the endoscope, the examiner needs to raise the chin of the examinee and have the head protrude a little bit forward. If this happens, the tongue base separates from the hypopharynx so that the insertion of the endoscope is easier; C: A small container is placed close to the mouth of a patient to collect saliva during and after the esophagogastroduodenoscopy; D: The examinee with a mouthpiece placed in the mouth is fully ready for the examination.