Endobiliary drainage tube for preventing duodenal papilla bleeding

Abstract

The invention provides an endobiliary drainage tube for preventing duodenal papilla bleeding. The endobiliary drainage tube comprises a drainage tube body, an inner core and a propeller, wherein at least two side holes are formed in the head tube section of the drainage tube body, a cylindrical balloon is attached to the middle tube section of the drainage tube body, a one-way injection valve is arranged in the tail tube section of the drainage tube body, and the head of the injection valve is communicated with the balloon; the balloon is cylindrical after being filled; the head of the inner core comprises a channel I and a needle tube, the channel I is arranged in a tube cavity of the drainage tube body and penetrates out, and the needle tube penetrates through the tail end of the injection valve; the tail part of the inner core is positioned in a pipe cavity of the propeller; the tail part comprises a channel II communicated with the channel I and a channel III communicated with theneedle tube; a channel IV communicated with the channel II and a channel V communicated with the channel III are arranged in the base of the inner core; and the channel V is connected with a balloon injection joint. While bile is drained, the filled balloon can press the duodenal papilla sphincter, and postoperative cholangitis and duodenal papilla bleeding can be prevented.

Description

technical field [0001] The present invention relates to the field of minimally invasive medical technology and surgical instrument technology, in particular to a biliary drainage tube for preventing duodenal papilla bleeding, which is a minimally invasive tube for draining bile and preventing 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; (2) after the metal stent is placed across the duodenal papilla, ten The tightness of the duodenal papillae is destroyed, and intestinal fluid and chyme easily flow back into the bile duct through the metal stent, resulting in cholangitis and bile duct stones; (3) After the nipple wound heals, a second endoscopic operation is required to remove the metal stent, and some The patient needs to use a balloon to clear the refluxed chyme in the bile duct

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