Blue pedal: During the operation, the surgeon usually needs to put his left foot on the blue pedal to control the height of the operating table.
Yellow pedal: During the operation, the doctor needs to put his right foot on the yellow pedal to control the direction of the camera.
Laparoscopy is a kind of medical instrument with micro-camera, which has the advantages of less trauma, quick recovery, less bleeding and low incidence of postoperative complications.