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Anti-displacement biliary drainage tube and implantation device

An internal drainage tube, anti-displacement technology, applied in the direction of catheters, balloon catheters, drug devices, etc., can solve the problem of damage to the intrahepatic bile duct and duodenal papilla mucosa, high probability of drainage tube prolapse, and difficulty in drainage tube prolapse And other issues

Active Publication Date: 2021-04-02
SHANGHAI EAST HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 3. The flanks of the drainage tube in the biliary tract are tapered, which can damage the intrahepatic bile duct and duodenal papilla mucosa during removal, causing papillitis, papillary Hemorrhage, even acute pancreatitis due to papilledema

Method used

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  • Anti-displacement biliary drainage tube and implantation device
  • Anti-displacement biliary drainage tube and implantation device
  • Anti-displacement biliary drainage tube and implantation device

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Such as figure 1 As shown, an anti-displacement biliary drainage tube includes a head end 1, a first pipe section 2, a second pipe section 3 and a tail end 4 in which the lumen is connected in sequence;

[0046] The upper end of the head end 1 is open, and the lower end has a first through hole 5;

[0047] The first pipe section 2 includes four arc-shaped pipe walls 6 that are evenly distributed around the axis of the first pipe section 2 and protrude away from the axis of the first pipe section 2 . The two ends are respectively connected to the lower end of the head end 1 and the upper end of the second pipe section 3;

[0048] The lumen of the second pipe section 3 runs through the upper end and the lower end of the second pipe section 3 and has a diameter larger than the first through hole 5 , and the side wall of the second pipe section 3 has a channel that communicates with the lumen 3 of the second pipe section. The drainage hole 7, the lower end of the side wal...

Embodiment 2

[0059] Such as Figure 2-6 As shown, a device for placing an anti-displacement biliary drainage tube, including an inner core 12;

[0060] The outer wall of the inner core 12 is sequentially sleeved with the anti-displacement biliary drainage tube and the drainage tube propeller 13 as described in Embodiment 1;

[0061] The inner core 12 includes a first core tube 14, a second core tube 15 and an inner core handle 16 in which the lumen is connected in sequence;

[0062] The first core tube 14 passes through the first through hole 5 and has an outer diameter smaller than the first through hole 5, and the second core tube 15 has an outer diameter smaller than the lumen of the second tube section 3 and larger than The diameter of the first through hole 5, the second core tube 15 is provided with a plurality of circular protrusions 21 on the tube section corresponding to the anti-displacement biliary drainage tube;

[0063] The tube wall at the head end of the drainage tube prop...

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Abstract

The invention discloses an anti-displacement biliary internal drainage tube and an implantation device. The anti-displacement biliary internal drainage tube comprises a head end, a first tube section,a second tube section and a tail end which are communicated in turn by a lumen. The first pipe section includes a plurality of arcuate pipe walls uniformly distributed about an axis of the first pipesection and protruding in a direction away from the axis of the first pipe section, two ends of the arcuate pipe walls are respectively connected with a lower end of the head end and an upper end ofthe second pipe section. The first tube segment of the invention comprises a plurality of arc-shaped tube walls, which naturally take on a spherical shape after being released, and exerts an anti-displacement effect by generating elastic tension on the bile duct wall; a plurality of transverse protrusions are arranged in the middle region of the outside of the arc-shaped tube wall to strengthen the anti-displacement effect of the internal biliary drainage tube.

Description

technical field [0001] The invention relates to a biliary internal drainage tube, in particular to an 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 + percutaneou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/10A61M25/08
CPCA61M25/0023A61M25/0043A61M25/0105A61M25/1011A61M2025/1086A61M2202/0403A61M2210/1075A61M2210/005A61M2202/0014
Inventor 杨玉龙张诚胡海赵刚
Owner SHANGHAI EAST HOSPITAL
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