I. Principle of laparoscopic surgery The principle of laparoscopic surgery is to use CO2 gas to create an artificial pneumoperitoneum as a space for observation and operation, to establish a channel between the abdominal cavity and the outside world with a puncture device through 2~6 small holes of 0.5~1.2CM size in the abdominal wall, and to insert a laparoscope with a video camera system and a light source through the puncture device, so that the situation inside the abdominal cavity is transmitted to the TV through a CCD camera. monitor. The operating surgeon looks at the image on the TV screen and inserts the surgical instruments into the abdominal cavity through the puncture device to perform the operation; therefore, laparoscopic surgery is a product of the application of recent high-tech technology to surgery, and is a new technology that has been developed in the last 20 years. Second, our hospital general surgery in the application of laparoscopic surgical techniques and prospects Our hospital in 2000 after the introduction of television laparoscopic surgical equipment in general surgery began to apply. According to incomplete statistics, about 3600 cases of various types of laparoscopic surgery have been completed. At present, laparoscopic surgery has been carried out for further improvement, such as trans-laparoscopic cholecystectomy, trans-laparoscopic appendectomy, trans-laparoscopic hepatic cyst windowing, trans-laparoscopic pediatric hernia repair, trans-laparoscopic colon and rectal surgery, trans-laparoscopic intestinal adhesion release, etc. 2.Prepare to carry out new surgical items, firstly carry out some moderately difficult surgeries, such as laparoscopic tension-free hernia repair, laparoscopic gastric surgery, colon and rectal surgery, splenectomy, laparoscopic thyroid surgery, etc., and gradually increase the difficulty of surgery. For some more complicated laparoscopic surgery, we can invite experts to our hospital to help carry out. We should continue to sum up our experience to better serve our patients.