Bidirectional anti-displacement biliary drainage tube and implantation device

Abstract

The invention discloses a bi-directional anti-displacement biliary internal drainage tube and an insertion device thereof. The bi-directional anti-displacement biliary internal drainage tube comprisesa head end, a first tube section, a second tube section, a third tube section and a tail end, wherein the head end, the first tube section, the second tube section, the third tube section and the tail end are communicated in turn. An upper end of that head end is open and a low end is provided with a first through hole. The first tube section includes a plurality of first arcuate tube walls uniformly distributed about an axis of the first tube section and protruding away from the axis of the first tube section. A lumen of that second pipe section penetrate the upper end and the lower end of the second pipe section and has a diameter larger than that of the first through hole, and a side wall of the second pipe section is provided with a drainage hole communicating with the lumen of the second pipe section, wherein the side wall of the second pipe section has a drainage hole communicating with the lumen of the second pipe section; the third tube section includes a plurality of second arcuate tube walls uniformly distributed about an axis of the third tube section and protruding away from the axis of the third tube section. The first tube section and the third tube section of the present invention are respectively composed of a plurality of first arc-shaped tube walls and a plurality of second arc-shaped tube walls, and the first tube section and the third tube section are integrally spherical after spontaneous release, and play an anti-displacement role by generating elastic tension on the bile duct wall. The first tube section and the third tube section of the present invention are respectively composed of a plurality of first arc-shaped tube walls and a plurality of second arc-shaped tube walls.

Description

technical field [0001] The invention relates to a biliary internal drainage tube, in particular to a bidirectional anti-displacement biliary internal drainage tube and an insertion device. Background technique [0002] Choledocholithiasis is a common and frequently-occurring disease in my country. Blockage of the common bile duct by stones can lead to poor bile excretion, which in turn induces complications such as acute cholangitis, obstructive jaundice, liver damage, and other manifestations such as chills, fever, abdominal pain, and jaundice. Severe cases may even lead to shock, and long-term calculus stimulation has the risk of cholangiocarcinoma, which is an important disease that endangers human health. The current treatment options for choledocholithiasis include open biliary tract exploration, laparoscopic biliary exploration, endoscopic retrograde cholangiopancreatography (ERCP) stone extraction, percutaneous transhepatic bile duct puncture (PTCD) + fistula dilation ...

AI Technical Summary

Problems solved by technology

Most of the currently used biliary drainage tubes are resin biliary drainage tubes with non-slip flanks at both ends. The above-mentioned drainage tubes have the following disadvantages: 1. After the biliary drainage tube head end flanks are inserted into the intrahepatic bile duct, due to the side of the bile duct The wall is squeezed, and the flanks are often in a closed state to varying degrees, which in turn leads to a higher probability of drainage tube prolapse; 2. If the head of the drainage tube in the biliary tract is located in the common bile duct, the common bile duct is often dilated to varying degrees in patients with choledocholithiasis , the well-released flanks are also difficult to prevent the drainage tube from prolapse; 3. The tail flanks of the drainage tube can be closed by themselves, and under the action of intestinal peristalsis, the drainage tube in the biliary tract enters the common bile duct, thus losing the purpose of draining bile 4. The flanks of the drainage tube in the biliary tract are tapered, and the flanks at the head end of the drainage tube can damage the intrahepatic bile duct and duodenal papilla mucosa during removal, causing papillitis, papilla hemorrhage, and even acute pancreas due to papillary edema. inflammation

Images