CN2527227Y

CN2527227Y - Portal vein-hepatic vein shunt support

Info

Publication number: CN2527227Y
Application number: CN 01264796
Authority: CN
Inventors: 李彦豪; 李天晓; 张美凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-15
Filing date: 2001-09-15
Publication date: 2002-12-25
Anticipated expiration: 2011-09-15

Abstract

The utility model pertains to the technical field of professional medical devices of interventional radiology of imaging medical interventional radiology. The utility model is characterized in that the front of which is a mushroom head 1, the back end is a round tube 2, the tail end of the round tube 2 is provided with more than two small holes 3, and a fine wire mesh 4 used for strengthening the supporting force of the tube wall is arranged in the round tube wall. The utility model has the dual advantages of surgical treatment and endoscopic treatment of various complications which are caused by hepatitis B and cirrhosis of liver, the wound is extremely small, the efficacy is definite, the long-term effect is good, and the patients are willing to accept the utility model.

Description

Type gate vein---hepatic vein shunting support

The technical field of the invention is a medical imaging interventional radiology professional medical apparatus.

China is hepatitis b virus infected big country, and the hepatitis B virus carrying rate is up to 20% among the crowd, and the hepatitis B sickness rate occupies first place in the world.Owing to still there is not effective medicine at present, most hepatitis change liver cirrhosis into, thereby cause portal hypertension through the chronic process of several years to decades.Its clinical manifestation is mainly spleen enlargement, spleen hyperfunctioning, ascites, digestive tract hemorrhage, and part is converted into hepatocarcinoma, and final final result is many to cause hepatorenal syndrome etc. former thereby dead because of liver failure, digestive tract hemorrhage, hepatocarcinoma, a large amount of ascites.

For a long time, the countries in the world scholar is devoted to the research of various complication treatments due to hepatitis B, the liver cirrhosis, and its Therapeutic Method and measure have a lot, but how undesirable effect and practicality be.At present, the digestive tract treatment of Massive Hemorrhage is mainly contained four big class methods clinically, the one, internal medicine treatment, little to amount of bleeding, that the portal hypertension symptom is light patient's clinical effectiveness is better, but can only be temporarily effective, and relapse rate is high; The 2nd, interventional therapy under the endoscope, the method that adopts injection of sclerosing agent and cover to prick is blocked varicosis, and haemostatic effect is reliable, but shortcoming is to massive hemorrhage, recurrent hemorrhage weak effect, can not reduce portal hypertension, very easily recurrence after the treatment.The 3rd, the capable portal vein of surgery-vena systemica bypass reduces portal hypertension, and is better to most of patient's effect, but patients with terminal can not tolerate surgery, and its major defect is that wound is big, operative mortality is high; The 4th, the percutaneous that occurs in recent years is portal vein in the jugular vein liver---vena systemica bypass (TIPSS) method, can effectively remove portal hypertension, can adopt simultaneously sclerosing agent sclerosis and blocking-up varicosis, haemostatic effect is very reliable, two-fold advantage with surgical intervention and therapeutic endoscopy, and wound is minimum, patient is willing to accept, but portal vein---vena systemica shunting support was metal net shaped in the past, because hepatic tissue can be by mesh deeply wherein, often cause the sub-runner restenosis, long-term effect is poor.

This utility model aims at and overcomes the problems referred to above and design.

This utility model is to realize like this.This utility model front end is mushroom head 1, and the rear end is a pipe 2, and its tail end has 2 above apertures 3, for strengthening the support force of pipe 2 tube walls, filamentary webs 4 is arranged in its tube wall.Below in conjunction with accompanying drawing this utility model is further described.

In the drawings, the 1st, be front end of the present utility model, for the mushroom capitiform, have groove on it, to guarantee that portal venous flow is unobstructed; In the utility model rear end is a pipe 2, and tail end has the aperture 3 (for example opening 3 apertures) more than 2, refluxes to make things convenient for hepatic vein, and can fetch this utility model by the claw type recover; Strengthen for the tube wall support force that makes pipe 2, the filamentary webs 4 of reinforcement is arranged in its tube wall.This utility model can (for example polyethylene) made of plastic, and filamentary webs 4 can be the finer wire net.

It uses step:

---the hepatic vein intubate------insert in resilient channels expansion---thromboembolism of coronary vein of stomach---, uses pusher that support is sent into sub-runner in the liver, discharging support after the accurate positioning under the perspective in the portal vein puncture by support through jugular puncture.If it is improper to discharge the position, back, can uses the claw type recover that support is fetched again and discharge.

Use this utility model that following advantage is arranged.

1, caliber does not have mesh, and hepatic tissue and blood vessel endothelium can't go deep into wherein, can overcome the restenosis problem.

2, front end has aperture, makes things convenient for hepatic vein to reflux, and reclaims back support by claw type, accurately locatees to guarantee support.

4, simple to operate, wound is little.

5, determined curative effect, long-term effect is good, and expense is cheap.

Use through zoopery and clinical principium, prove safety, effective, simple to operate, very big application value arranged.

The applicant retrieves through medical literature, does not find to have similar medical apparatus and instruments both at home and abroad.

Claims

A kind of type gate vein---hepatic vein shunting support is characterized in that its front end is mushroom head 1, and the rear end is a pipe 2, and pipe 2 tail ends have 2 above apertures 3, and the fine rule net 4 of strengthening the tube wall support force is arranged in the pipe 2 pipe walls.