Non-thrombogenic stent jacket

A - Human Necessities – 61 – L

Patent

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Details

A61L 33/18 (2006.01) A61F 2/82 (2006.01) A61L 31/02 (2006.01) A61L 31/16 (2006.01) A61F 2/84 (2006.01)

Patent

CA 2304495

A jacketed stent assembly comprising a tubular, expandable stent, preferably having a metallic framework, jacketed with a cylinder of biocompatible, non-thrombogenic expandable material, such as heterologous tissue, which, in a preferred embodiment, contains a therapeutic or diagnostic agent. In a preferred embodiment, the jacket of the expandable stent is formed of bovine or porcine pericardial tissue. A delivery catheter having an expandable member on its distal extremity may be used to deliver the stent assembly to a desired region in a lumen of a patient. The jacketed stent is expanded to be seated within the body lumen. Self-expanding jacketed stents are also contemplated.

Cet ensemble stent gainé comprend un stent tubulaire déployable constitué de préférence d'une armature métallique gainée d'un cylindre de matériau déployable biocompatible non thrombogène tel qu'un tissu hétérologue. Dans une réalisation préférée, ce matériau contient un agent thérapeutique ou de diagnostic. Dans une réalisation préférée, la gaine du stent déployable est formée de tissu péricardique bovin ou porcin. Pour amener l'ensemble stent en une région souhaitée dans une lumière d'un patient, on peut utiliser un cathéter de mise en place dont l'extrémité distale comporte un élément déployable. Le déploiement du stent gainé suffit à l'installer à l'intérieur de la lumière du corps. L'invention doit également concerner, à l'avenir, des stent gainés auto-déployants.

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