The cholangioscope was ready and entered the abdominal cavity through a special sheath, then into the Common Bile Duct through an incision. The cholangioscope's light source was turned on, and the condition of the patient's Common Bile Duct appeared on the connected electronic display.
The various ducts of the human body are displayed as cavities under an optical lens, and when magnified, they look like the landscape of a cave.
Similar to colonoscopy, the doctor mainly used the cholangioscope to observe the bile duct's inner wall and the various contents within the duct lumen. Inside, there were not only possible gallstones but also the bile normally secreted by the human liver, as well as various proliferations, including tumors, that could not be ruled out.
The surgeon adjusted the focus and the direction of the cholangioscope's light source to perform the examination, which was very similar to the operation of a Laparoscopic exam.
