Balloon type nasobiliary duct for preventing duodenal papilla bleeding

Abstract

The invention provides a balloon type nasobiliary tube for preventing duodenal papilla bleeding. The balloon type nasobiliary tube comprises an elastic loop tube I, a straight tube I, a straight tubeII, an elastic loop tube II and a straight tube III; a channel I is formed in the elastic loop tube I; a channel II is formed in the straight pipe I; a channel III and a channel IV are formed in the straight pipe II; the balloon is cylindrical; a channel V and a channel VI are formed in the elastic loop tube II; a channel VII and a channel VIII are arranged in the straight pipe III; the connectorconnected with the tail end of the straight pipe III comprises a nut and a connector body, and an inner cavity of the nut is provided with internal threads; two parallel metal needles are arranged atone end of the connector body, the other sides of the two metal needles are connected with a conical structure, and external threads connected with the internal threads in a matched mode are arrangedon the conical structure. A drainage joint and a pressurizing joint are arranged on the other side of the conical structure. When bile is drained, duodenal papilla bleeding can be prevented; intestinal juice and chyme do not flow back into the common bile duct in the using process; after use, the balloon is released and can be pulled out, and secondary endoscope operation is not needed.

Description

technical field [0001] The present invention relates to the field of minimally invasive medical technology and surgical instrument technology, in particular, to a balloon-type nasobiliary tube for preventing duodenal papilla bleeding, which is a microscopic tube used to drain bile and prevent duodenal papilla bleeding. Surgical instruments. Background technique [0002] Duodenoscopy (ERCP) is currently an important measure for the treatment of hepatobiliary and pancreatic diseases, including choledocholithiasis, bile duct injury, bile duct stricture, and biliary complications after liver transplantation. Compared with traditional laparotomy, this technique has the advantages of less trauma, high safety factor, and faster recovery, but there are still complications such as bleeding, acute pancreatitis, perforation, and acute cholangitis. With the increase of therapeutic ERCP, the incidence of complications after ERCP is also on the rise, among which the incidence of duodenal...

AI Technical Summary

Problems solved by technology

However, the use of fully covered metal stents to prevent bleeding has the following disadvantages: 1. The price of fully covered metal stents is as high as 20,000 yuan, which limits its wide clinical application; The tightness of the intestinal papilla is destroyed, and the intestinal juice and chyme in the intestine are easy to flow back into the bile duct through the metal stent, resulting in cholangitis and bile duct stones; 3. After the nipple wound is healed, a second endoscopic operation is required to remove the metal stent, and some patients need to use The balloon clears the regurgitated chyme in the bile duct

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