The three-stage treatment plan combining Chinese and Western medicine is more effective than the traditional nasogastric tube in treating acute small bowel obstruction, which not only provides rapid relief of symptoms and shortens the time required to relieve the obstruction, but also increases the success rate of conservative treatment, and can cure and prevent recurrence of complex intestinal obstruction with serious adhesions by internal small bowel tube arrangement. Phase I Nasogastroscopy-assisted transnasal type intestinal obstruction catheter placement Transnasal type intestinal obstruction catheter is manufactured by Cooley Aite, Japan, with a total length of 3m, a silicone catheter, a polyethylene plastic catheter containing 45% barium sulfate at the front end, two capsules and three chambers, consisting of three parts: outer tube (4.5mm outer diameter, 3.5mm inner diameter, attracting gastrointestinal contents), inner tube (for injecting water into the inside of the air sac at the top), and air sac, which are anterior guiding head (anterior guide), air bladder, lateral hole, catheter section, caudal air bladder, valve, fill port, suction port, etc. X-ray imaging is possible, and the guidewire is 3.5m long. Using a combination of nasogastroscopy-assisted and dynamic observation under X-ray for placement, the hydrophilic intestinal obstruction guidewire is delivered with the nasogastroscope into the horizontal segment of the duodenum, and in some cases directly over the vicinity of the Treitz ligament; the depth of the guidewire is maintained and Withdraw the nasogastroscope; fill the lumen of the transnasal type intestinal obstruction catheter with sterilized distilled water, insert the intestinal obstruction catheter along the guide wire through the nose, cross the guide wire over the Treitz ligament under dynamic X-ray observation, push the catheter through the guide wire to the jejunum, advance the catheter toward the distal end of the small intestine with the cooperation of the guide wire, inject contrast agent to understand the morphology of the dilated small intestine intestine if necessary, until the catheter cannot go deeper, fill it with 5 ml of sterilized distilled water All 34 patients were successfully placed, and the average depth of intestinal obstruction catheter placement was 198 (110-250) cm. After 24 h of deep decompression of the small intestine by intestinal obstruction catheter, the catheter was injected with Chinese medicine Da Cheng Qi punch (formula composition: Hou Pu, Hovenia, Rhubarb, Mannite) and the catheter was closed for 4 hours. The catheter was closed for 4 hours; 1.5 hours after the injection of traditional Chinese medicine, Neostigmine 1mg was given to close the pudendal three miles bilaterally; 15 minutes after the closure, soapy water was applied to wash the intestine. The above treatment was given once a day. Third stage, surgical treatment After 120 hours of the above treatment, if the small intestine intestinal obstruction is still not lifted, surgical treatment will be performed. The surgical method mainly adopts intestinal adhesion release + sodium hyaluronate or small intestine built-in tube arrangement according to the abdominal adhesions.