Expansion type drainage tube with balloon for fistula

Abstract

The invention provides an expansion type drainage tube with a balloon for a fistula, and belongs to the technical field of medical device manufacturing. The drainage tube includes a drainage tube bodyand an inner core, the head of the drainage tube body is tapered, the drainage tube body is provided with a spherical air bag and a cylindrical air bag, and the tail part of a water injection channelin the spherical air bag is provided with a connector; the tube wall between the spherical air bag and the cylindrical air bag is provided with side holes; and the surface of a connector at the tailpart of the drainage tube body is provided with threads, the tail part of the inner core is provided with a connecting cap, threads are arranged in the connecting cap, the threads are matched with thethreads of the structure surface of the tail part of the drainage tube body, the inner core is inserted into the drainage tube body, and the connectors at the tail part are tightened. The drainage tube achieves the following beneficial effects: the balloon is arranged at the head part of the device to avoid the displacement of the drainage tube, and the drainage tube body of the device is provided with the cylindrical air bag, and the drainage tube gradually expands the fistula by using a gradual compression manner without causing fistula tearing and bleeding, and has less side effects such as pain.

Description

technical field [0001] The invention belongs to the technical field of medical device manufacturing, and relates to a fistula expansion drainage tube with a balloon. Background technique [0002] Gallbladder and intrahepatic bile duct stones are a common disease, which can induce complications such as acute and chronic cholecystitis, cholangitis, obstructive jaundice, and biliary tract tumors. The traditional treatment methods for gallstones are open cholecystectomy and hepatic lobectomy. Today, with the increasing development of laparoscopic and choledochoscopy techniques, laparoscopic cholecystectomy and biliary exploration have become important means for the treatment of gallstones. [0003] Whether it is laparoscopic cholecystectomy or biliary exploration, it needs to be performed under general anesthesia. For elderly and high-risk patients who cannot tolerate the risk of general anesthesia, and patients who have undergone multiple laparotomy, percutaneous transhepatic ...

AI Technical Summary

Problems solved by technology

There are two ways to dilate the fistula tract. One is to use different types of hard dilation tubes to expand the fistula tract in one operation. The other is intermittent replacement of thicker biliary drainage tubes. This method does not require anesthesia, but the interval between two operations is longer, resulting in longer treatment time for the disease

If the interval time is short or a thicker type of drainage tube is selected, it will not only increase the pain of the patient, but also increase the difficulty of tube placement

Images