loop nasobiliary irrigation tube

Abstract

The invention discloses a loop type nasal biliary flushing tube. The loop type nasal biliary flushing tube comprises a straight tube, a spiral tube and a loop tube in sequential connection. A thread holding tube, a water inlet tube and a water discharging tube are arranged in the loop type nasal biliary flushing tube. The water inlet tube is communicated with an inner cavity of the head of the loop tube, and a partition plate is arranged between the water discharging tube and the inner cavity of the head of the loop tube. The outer wall of the loop type nasal biliary flushing tube is provided with a plurality of through holes I and a plurality of through holes II, the through holes I are communicated with the water inlet tube, and the through holes II are communicated with the water discharging tube. The head of the loop tube is provided with a thread, and the other end of the thread penetrates the outer wall of the loop type nasal biliary flushing tube to enter the thread holding tube. The loop type nasal biliary flushing tube is a double-channel flushing tube, the water inlet tube is connected with a flushing bottle, the water discharging tube is connected with a vacuum extractor, and an automatic flushing function is realized. Since the side wall of the water discharging tube is provided with the oval through holes II, blockage possibility is lowered, accumulation of flushing fluid in biliary ducts is avoided, and shedding probability of the flushing tube is low.

Description

technical field [0001] The invention relates to a flushing tube, in particular to a loop-type nasobiliary flushing tube. Background technique [0002] With the continuous development of endoscopic technology and the continuous improvement of its accessories, duodenoscopy (ERCP) has become an important measure for the treatment of hepatobiliary and pancreatic diseases, including common bile duct stones, acute obstructive suppurative cholangitis, bile duct injury , biliary stricture, biliary complications after liver transplantation, etc. Compared with traditional laparotomy, this technique has the advantages of less trauma, high safety factor, and faster recovery. After ERCP treatment, external nasobiliary drainage tubes are routinely placed to drain infectious bile, bile sludge, and gravel, which can reduce the incidence of postoperative cholangitis and the recurrence rate of choledocholithiasis. [0003] At present, the nasal and biliary drainage tubes in clinical use are...

AI Technical Summary

Problems solved by technology

[0003] At present, the nasal and biliary drainage tubes in clinical use are all single-channel drainage tubes. The body of the tube is straight, and the head end is bent into a loop. Under the action, bile can be drawn out through the lumen, but the flow rate of bile is slow, and viscous purulent bile is not easy to discharge, and its circular side hole is small, and debris can easily block the side hole of the drainage tube

This drainage tube has the following deficiencies: 1. In order to keep the drainage tube unobstructed and promote the discharge of viscous purulent bile, it is necessary to repeatedly use physiological saline to rinse the nasobiliary duct after the operation, so as to keep the drainage tube unobstructed and dilute the intrahepatic bile , promote the discharge of viscous purulent bile and gravel, and increase the clinical workload; 2. Since the drainage tube is straight, when the bile is sucked, the bile duct wall mucosa is easily adsorbed to the side hole of the drainage tube, resulting in backwashing of the flushing fluid Difficult; 3. The head of the drainage tube is naturally looped, and its fixation force is small, and the drainage tube is prone to prolapse; 4. During the extubation process, the head of the loop drainage tube can cause damage to the bile duct and intestinal mucosa, and even induce Acute cholangitis, acute pancreatitis, upper gastrointestinal bleeding and other complications

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