Application of Overlap Method to Digestive Tract Reconstruction of Totally Laparoscopic Left Colectomy

After the intestinal canal was dissociated and vascularized, the intestinal canal was nuded and cut off, and the distal and proximal intestinal canals were overlapped by 6 cm

After the corresponding colon and blood vessels were dissociated and treated, the carbon dioxide pneumoperitoneum was removed. The appropriate length of the incision was cut at the corresponding position of the abdomen, and the incision protector was placed. The tumor was lifted together with the free intestinal canal to the outside of the abdomen. The intestinal canals at the quasi-dismembered sites on both sides of the tumor were nuded, and the colon-colon functional end-to-end anastomosis was performed.