To evaluate the clinical application value of laparoscopic-assisted natural orifice specimen extraction radical colectomy by Cai tube.

Colorectal cancer surgery for samples obtained from natural orifice under full laparoscopy was conducted on seventy colorectal cancer patients by self-developed surgical instruments-Cai tube. Patients′ clinical data were retrospectively analyzed.

Surgeries of seventy patients were completed under full laparoscopy. Samples were obtained through anus. Wherein, seven cases, thirty-five cases, two cases and twenty-six cases belonged to cancer of descending colon, sigmoid, sigmoid-rectum junction, and rectum, respectively. Perioperative mortality was not discovered. Through retrospective analysis, we use the ″Body Mass Tumor Index″ to score patients before surgery to assess the ease of removal of surgical specimens.

Colorectal cancer surgery for samples obtained from natural orifice under full laparoscopy is characterized by safe operation, small trauma, lighter pain and more beautiful appearance, and radical resection effect can be achieved. In addition, higher colon cancer, such as cancer of descending colon, can be surgically excised under full laparoscopic colon surgery, and samples can be obtained from anus. Minimally invasive feature can be further improved on the basis of radical resection.