Internal gallbladder drainage tube

Abstract

The invention discloses an internal gallbladder drainage tube. An elastic loop pipe, a drainage tube section I and a drainage tube section II, which mutually communicate, are sequentially arranged from the head to the tail of the drainage tube; the drainage tube section I is of an arc-like structure, with an arc opening facing the elastic loop pipe; the drainage tube section I comprises an arc tube section I and an arc tube section II which sequentially communicate; the arc tube section I communicates with the elastic loop pipe; a part where the arc tube section I is connected to the arc tubesection II is deviated from the direction of the axial arc tube section II by 45-60 degrees; the arc tube section II communicates with the drainage tube section II; the head section of the arc tube section I extends along the direction of the elastic loop pipe; barbs are arranged at the lower end of the outer wall of the inner side of the arc tube section II; the drainage tube section II is represented as a single pigtail; the elastic loop pipe, the arc tube section II and the drainage tube section II are provided with bile drainage holes; and through holes are formed in the head of the elastic loop pipe. According to the internal gallbladder drainage tube provided by the invention, the head of the elastic loop pipe I is of a conical structure; and the internal gallbladder drainage tube, which is provided with a hydrophilic coating on the outer wall, can enter gallbladders through duodenal papillae and cystic gall ducts more easily.

Description

technical field [0001] The invention relates to a drainage tube, in particular to a drainage tube in the gallbladder. Background technique [0002] Acute cholecystitis is a common and frequently-occurring disease in my country, and gallstones are its main cause. Laparoscopic cholecystectomy is the traditional treatment for acute cholecystitis. With the development of endoscopic equipment and minimally invasive techniques, laparoscopic cholecystectomy has become the main treatment for gallstones associated with acute cholecystitis. With the rapid development of China's economy and society in the 21st century, population aging has gradually become one of the hot issues in contemporary Chinese society. Elderly patients often have underlying diseases such as hypertension, diabetes, and coronary heart disease, and are resistant to general anesthesia and long-term operations. On this basis, local anesthesia cholecystostomy, percutaneous transhepatic gallbladder drainage (PTCD), e...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no commercialized gallbladder internal drainage tube used clinically. In clinical practice, the internal biliary drainage tube is used for gallbladder bile drainage. Commonly used biliary internal drainage tubes include straight type, single pigtail type, and double pigtail type. Biliary drainage tubes are the most commonly used, and there are the following problems in the application of biliary drainage tubes for gallbladder bile drainage: 1. There are side holes at both ends of the drainage tube, but there is no side hole in the tube body. The drainage tube has no drainage effect on hepatic bile duct bile, and then loses the effect of the drainage tube in the bile duct; 2. Intrahepatic bile cannot enter the gallbladder through the cystic duct or drainage tube, and the hepatic bile duct bile cannot dilute the inflammatory mediators in the gallbladder. Conducive to the recovery of cholecystitis; 2. The shape of the cystic duct is arc-shaped and merges with the common hepatic duct at an acute angle, while the body of the biliary drainage tube is straight, which does not match the physiological results of the biliary tract. The biliary drainage tube is inserted into the gallbladder The posterior cystic duct is easy to be compressed, and the gallbladder wall is also easily pulled, which can induce abdominal pain symptoms or displacement of the drainage tube; 3. The head of the drainage tube in the straight or single pigtail biliary tract is straight, and the head end is easy to compress the gallbladder mucosa. Lead to local hyperplasia and even gallbladder perforation; 4. There are barbs at the head of the straight and single pigtail biliary drainage tubes to prevent the drainage tube from shifting. The structure does not match, leading to the easy drainage of the biliary tract through the gallbladder and into the common bile duct, thus losing the drainage effect on gallbladder bile

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