A biliary drainage device

Abstract

The invention discloses a biliary drainage device. The biliary drainage device includes an external drainage tube, an internal drainage tube, and a connecting tube connecting the external drainage tube and the internal drainage tube, wherein: the external drainage tube and the internal drainage tube are attached and connected along the length direction; the distal end of the external drainage tube is closed, and the tube wall There are multiple drainage side holes on the top; the connecting pipe is provided with an external drainage valve port and a one-way valve, and the one-way valve connects the external drainage tube to the internal drainage tube in one direction. With this biliary drainage device, there is no need to place a stent in the biliary tract, and it is easy to replace. It can establish a long-term drainage channel for the obstructed segment of the biliary tract for patients; in addition, because bile can be introduced into the duodenum through the internal drainage tube, it can reduce the burden on the patient. Appetite, health impact, so that the patient's liver and gallbladder function quickly recovered. In addition, the one-way valve set on the connecting tube can prevent intestinal fluid reflux, thereby reducing complications such as cholangitis.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a biliary drainage device. Background technique [0002] Biliary obstruction is a disease with a high mortality rate in surgical acute abdomen. Parasites, etc.), benign biliary strictures (such as surgical and traumatic biliary cicatricial strictures, etc.), tumors (such as liver cancer, bile duct cancer, gallbladder cancer, duodenal cancer, pancreatic cancer, and lymph node metastases near the biliary tract, etc.), And congenital abnormalities (such as congenital choledochal cyst, etc.). [0003] Percutaneous transhepatic biliary drainage is a percutaneous puncture of the biliary tract through the liver under the guidance of medical imaging equipment, and a catheter is placed for drainage. This operation can treat cholestasis, obstructive jaundice, secondary infection and other conditions caused by biliary obstruction, so as to achieve the therapeutic purpose of re...

AI Technical Summary

Problems solved by technology

Due to the limitation of the diameter of the internal and external drainage tubes and the extrusion of the narrow wall of the biliary tract, the drainage is often not smooth enough

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