Nasal gallbladder bile drainage catheter with expansile saccule

Abstract

The invention discloses a nasal gallbladder bile drainage catheter with an expansile saccule, wherein an elastic loop pipeI, an elastic loop pipe II, a drainage pipe segment I, a drainage pipe segmentII, a drainage pipe segment III, and a drainage pipe segment IV are interconnected and arranged on the nasal gallbladder bile drainage catheter from stem to stern. The drainage pipe segment I is shaped arc-like, and the arc opens towards the elastic loop pipe I. The drainage pipe segment II is shaped curved and forms a 'Sigma' shape with the final segment of an arc pipe segment II. The drainage pipe segment III is arc-shaped, and the arc opens towards an arc pipe segment I. The drainage pipe segment IV is shaped like a straight line. Bile drainage orifices are arranged on the elastic loop pipe I, the elastic loop pipe II, and the final segment of the arc pipe segment II. A saccule is arranged on the exterior wall of the head segment of the arc pipe segment II. The nasal gallbladder bile drainage catheter with the expansile saccule involves five curves, conforms to five physiological curves including gallbladder cavity, gallbladder duct to common bile duct, common bile duct to duodenum, duodenum to gastric antrum, greater gastric curvature, and has a good comfort level.

Description

technical field [0001] The invention relates to a bile external drainage tube, in particular to a nasal gallbladder bile external drainage tube with an expansion balloon. Background technique [0002] Cholecystolithiasis is a common and frequently-occurring disease in my country, which often induces complications such as acute and chronic cholecystitis, secondary choledocholithiasis, and obstructive jaundice. Open cholecystectomy is the traditional treatment for gallstones. With the development of endoscopic equipment and minimally invasive techniques, laparoscopic cholecystectomy and gallbladder stone removal have become the two main options for the treatment of gallstones. 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 gene...

AI Technical Summary

Problems solved by technology

[0003] The consumables for clinical application of ERCP combined with cystic duct metal stent expansion and SpyGlass stone extraction include duodenoscope, covered retrievable metal stent, SpyGlass and accessories, in which the covered retrievable metal stent is placed in the gallbladder-cystic duct-common bile duct -In the duodenum, the nasobiliary duct is placed in the intrahepatic bile duct, and the SpyGlass enters the gallbladder cavity through the metal stent to remove stones. The above-mentioned treatment plan and consumables have the following disadvantages: 1. The cost of the coated recyclable metal stent and SpyGlass accessories and its cost Expensive; 2. Gallstones in the gallbladder are easy to block the coated retrievable metal stent and induce acute cholecystitis; 3. Placement of the coated retrievable metal stent in the cystic duct is prone to gallbladder reflux of intestinal fluid, leading to colonization of intestinal bacteria in the gallbladder and even inducing acute cholecystitis ; 4. After the cystic duct is placed with a coated recyclable metal stent, bile cannot enter the gallbladder, making the gallbladder empty and destroying the physiological function of bile; 5. The metal stent is placed in the duodenum through the duodenal papilla, which is easy to induce In acute pancreatitis, intestinal reflux is prone to occur after nipple airtight damage, and there are long-term complications such as acute reflux cholangitis and common bile duct stones; 6. Removing the metal stent requires a second ERCP operation

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