Covered endoprosthesis and delivery system

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/06 (2006.01)

Patent

CA 2328999

The present invention is an improved endovascular device particularly useful for use in transjugular intrahepatic portosystemic shunt (TIPS) procedures. The device employs a two-part scent-graft construction that provides a low permeability membrane to line the shunt and an uncovered stent portion designed to reside in the portal vein. The device provides numerous benefits over previous stents and stent-grafts used in TIPS procedures, including being more compact to deliver, being easier to accurately deploy, a controlled compacted surface with tucked apices, an improved scent winding pattern, and being more flexible in delivery and use.

La présente invention concerne un dispositif endovasculaire amélioré convenant particulièrement pour les procédures de dérivation transjugulaire intrahépatique portosystémique (TIPS). Le dispositif emploie une construction de greffe à stent en deux parties qui comporte une membrane faiblement perméable garnissant la dérivation et une partie stent découverte conçue pour résider dans la veine porte. Ce dispositif comporte de nombreux avantages par rapport aux modèles anciens de stents et de greffons de stents utilisés pour les procédures TIPS. En effet, ils sont plus compacts pour la mise en place, plus faciles à déployer avec précision, leur surface compactée contrôlée est pourvue de sommets repliés, le dessin d'enroulement du stent est amélioré, et ils sont plus souples pour la mise en place et à l'utilisation.

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