Biliary drainage device

Abstract

The invention discloses a biliary drainage device. The biliary drainage device comprises an outer drainage tube and an inner drainage tube, as well as a connecting tube for communicating the outer drainage tube and the inner drainage tube, wherein the outer drainage tube and the inner drainage tube are attached and connected in a length direction; the far end of the outer drainage tube is sealed, and a plurality of drainage side holes are formed in the wall of the tube; an outer drainage valve port and a check valve are arranged on the connecting tube; and by virtue of the check valve, the outer drainage tube and the inner drainage tube communicate in a unidirectional mode. The biliary drainage device disclosed by the invention is unnecessary to place a stent inside the biliary tract and is convenient for replacing; a long-term drainage tube for a biliary tract obstruction section can be constructed for a patient; in addition, since bile can be led into duodenum through the inner drainage tube, the biliary drainage device can relieve influence on appetite and health of a patient, so that liver and gall functions of the patient can recover rapidly. In addition, by virtue of the check valve which is arranged on the connecting tube, the regurgitation of intestinal juice is avoided, so that such complications as cholangitis are relieved.

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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