Duet stent deployment system and method of performing a transjugular intrahepatic portosystemic shunting procedure using same

a deployment system and stent technology, applied in the field of stent deployment system, can solve the problems of increasing costs, increasing costs, increasing procedure time and complication risks for patients, and high cost of procedures

Inactive Publication Date: 2016-08-25
COOK MEDICAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are a variety of problems associated with the current TIPS procedure.
One problem is that the stent length and sometimes diameter needed for a patient is uncertain, even with careful measuring and estimation.
In addition, when it is necessary for the physician to complete the procedure with the implan

Method used

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  • Duet stent deployment system and method of performing a transjugular intrahepatic portosystemic shunting procedure using same
  • Duet stent deployment system and method of performing a transjugular intrahepatic portosystemic shunting procedure using same
  • Duet stent deployment system and method of performing a transjugular intrahepatic portosystemic shunting procedure using same

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[0015]Hospitals that perform TIPS procedures must normally inventory stent introducers with stents having a variety of lengths to accommodate both physician discretion in deciding a stenting length needed for a particular patient, as well as accommodating the substantial variety in different lengths among patients from a junction of the shunt with the portal vein to a junction of the hepatic vein with the vena cava. Because of the three dimensional structure of these passageways, It can often be time consuming to determine precise stenting length requirements for each individual patient. In many instances, the physician will implant a first sleeve covered stent in the newly made shunt with a first stent deployment device and then reenter with a second stent deployment device to place a second stent to extend from the shunt through the hepatic vein to the junction with the vena cava. While the first stent length is somewhat typical among patients, and being on the order of about four...

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Abstract

A duet stent deployment system is used in a transjugular intrahepatic portosystemic shunt procedure. The device has a versatility of adjusting to a patient's anatomy in vivo. The system includes exactly two self expanding stents mounted on an inner catheter and covered by an outer sheath that is moved among a pre-deployment configuration, a first deployment configuration and a second deployment configuration to position the stents in an overlapping configuration from the portal vein, through a shunt and into the hepatic vein, and terminating at the junction with the vena cava.

Description

TECHNICAL FIELD[0001]The present disclosure relates generally to a duet stent deployment system that carries exactly two self expanding stents, and more particularly to a stent deployment system for transjugular intrahepatic portosystemic shunting procedures.BACKGROUND[0002]Transjugular intrahepatic portosystemic shunting (TIPS) is an artificial channel within the liver that establishes communication between the portal vein and the hepatic vein. TIPS is sometimes used to treat portal hypertension that is often due to liver cirrhosis, which frequently leads to intestinal bleeding, esophageal bleeding and the build up of fluids within the abdomen. The TIPS procedure works by gaining access to the liver via the jugular vein, and then moving through the vena cava to the hepatic vein. A needle is then used to create a point of access (shunt) from the hepatic vein through the liver tissue into the portal vein. A guide wire is introduced to maintain access, and then a balloon catheter is p...

Claims

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Application Information

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IPC IPC(8): A61F2/966
CPCA61F2002/9665A61F2250/0098A61F2002/826A61F2/966
Inventor RIEDY, KELLEY JEANHUDSON, ELIZABETH ANNEMCGHIE, THOMAS WAYNE
Owner COOK MEDICAL TECH LLC
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