REDUCING STENT FOR A TRANSJUGULAR INTRAHEPATIC PORTOSYSTEMIC SHUNT

摘要

A stent used in reducing a diameter of a transjugular intrahepatic portosystemic shunt (TIPS) for secondary restriction of flow through a TIPS tract is disclosed. In one example approach, a reducing stent comprises a tube-shaped framework with a tubular material affixed around an outer surface of the framework and extending through the interior of the framework to define a reducing passage in the interior of the framework. In another example approach, a transjugular intrahepatic portosystemic shunt system including a transjugular intrahepatic portosystemic shunt and a reducing stent mounted within an interior of the transjugular intrahepatic portosystemic shunt is disclosed.

主权项

1. A stent used in reducing a diameter of a transjugular intrahepatic portosystemic shunt, the stent comprising:
a tube-shaped framework having a substantially constant diameter along a longitudinal axis of the framework from a first open end to a second open end opposing the first open end; a tubular material with first and second opposing open ends, where the first end of the tubular material is affixed to a first region around an outer surface of the framework and wherein the tubular material extends from the first region over an edge of the first open end of the framework, through an interior of the framework, and over an edge of the second open end of the framework to terminate at the second end of the tubular material which is affixed to a second region around the outer surface of the tube-shaped framework thereby defining a reducing passage extending through the interior of the tube-shaped framework along the longitudinal axis of the framework, wherein a diameter of the reducing passage in a middle portion of the interior of the framework is less than the diameters of the framework at each of the first and second opposing ends of the framework.