Intravascular stent

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/06 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2252591

A stent in a non-expanded state has a first expansion strut pair that includes a first expansion strut positioned adjacent to a second expansion strut. A joining strut of the first expansion strut pair couples the first and second expansion struts at a distal end of the first expansion strut pair. A plurality of the first expansion strut pair form a first expansion column. A second expansion strut pair includes a first expansion strut positioned adjacent to a second expansion strut. A joining strut of the second expansion strut pair couples the first and second expansion struts of the second expansion strut pair at a proximal end of the second expansion strut pair. A plurality of the second strut pair form a second expansion column. The first expansion strut of the first expansion strut pair in the first expansion column has a longitudinal axis offset from a longitudinal axis of the first expansion strut of the second expansion strut pair in the second expansion column.

En position contractée, une prothèse endovasculaire possède une première paire de tiges de dilatation, composée d'une première tige de dilatation adjacente à une seconde tige de dilatation. Une tige de liaison de la première paire de tiges de dilatation relie la première et la seconde tiges de dilatation à l'extrémité distale de la première paire de tiges de dilatation. Plusieurs premières paires de tiges de dilatation forment un premier montant de dilatation. Une seconde paire de tiges de dilatation inclut une première tige de dilatation adjacente à une deuxième tige de dilatation. Une tige de liaison de la seconde paire de tiges de dilatation relie la première et la seconde tiges de dilatation de la tige de dilatation à l'extrémité proximale de la seconde paire de tiges de dilatation. Plusieurs secondes paires de tiges de dilatation forment un second montant de dilatation. La première tige de dilatation de la première paire de tiges de dilatation dans le premier montant de dilatation possède un axe longitudinal décalé par rapport à l'axe longitudinal de la première tige de dilatation de la seconde paire de tiges de dilatation du second montant de dilatation.

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