Intrahepatic portosystem shunt stent with diameter capable of being automatically adjusted

Abstract

The invention belongs to the technical field of medical treatment, and particularly discloses an intrahepatic portosystem shunt stent with the diameter capable of being automatically adjusted. The intrahepatic portosystem shunt stent with the diameter capable of being automatically adjusted comprises an intrahepatic membrane segment, a non-projection line gold marker line, a portal bare segment and a through hole groove, wherein a right side end of the intrahepatic membrane segment is fixedly connected with the non-projection line gold marker line, a right side end of the non-projection line gold marker line is fixedly connected with the portal bare segment, a dilation head is fixedly installed at a right side end of the portal bare segment, multiple overhead hooks are evenly and fixedly installed on an outer wall of the dilation head, an inner membrane dilation opening is fixedly formed in an inner wall of the dilation head, and the through hole groove is formed in both inner walls ofthe intrahepatic membrane segment and the portal bare segment. The intrahepatic portosystem shunt stent with the diameter capable of being automatically adjusted has the comprehensive effects that the intrahepatic portosystem shunt stent with the diameter capable of being automatically adjusted can be effectively and steadily connected with a blood vessel, and is not liable to fall off, a successrate of installation is high, and meanwhile, the insertion depth can be observed conveniently.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to an intrahepatic portosystemic shunt bracket whose diameter can be automatically adjusted. Background technique [0002] Transjugular intrahepatic portosystem stent-shunt (TIPSS). The principle is to use special interventional treatment equipment, under the guidance of X-ray fluoroscopy, through the jugular vein approach, establish an artificial shunt channel in the liver between the main branches of the hepatic vein and portal vein, and maintain it permanently with metal internal stents Unobstructed, to control and prevent rupture and bleeding of esophageal and gastric varices after reducing portal hypertension, and promote ascites absorption. Puncture of portal vein branches is a technical difficulty of TIPS. The spatial relationship between the hepatic vein and the portal vein is complex, and anatomical variation and pathological changes of liver cirrhosis can change the spa...

AI Technical Summary

Problems solved by technology

Simple application of bare stents has a high restenosis rate, and the application of covered stents can reduce the inflammatory stimulation caused by bile endoleak, which can reduce the restenosis rate to a certain extent, but the high hardness of covered stents can easily lead to poor shunt shape and affect long-term outcomes. Patency

[0004] The intrahepatic portosystemic shunt stents in the prior art generally have poor fixation stability, which may easily cause the shunt

Images