Features:
1.The outline of the large intestine and the structure within the intestinal lumen can be observed.
2.Sigmoidoscopy can observe hyperplastic colon polyps and cancer in the intestine.
3.Can identify benign and malignant pathological changes
4.The large intestine model is installed on the base plate.
5.A variety of intestinal lesions are provided for diagnosis, and intestinal photography technology can be practiced.