Coiled-sheet stent-graft with slidable exo-skeleton

Details Coiled-sheet stent-graft with slidable exo-skeleton Coiled-sheet stent-graft with slidable exo-skeleton

A - Human Necessities

61

F

A61F 2/82 (2006.01) A61F 2/06 (2006.01) A61L 31/04 (2006.01)

Patent

CA 2369152

A stent-graft having an exo-skeleton attached to a tubular graft, the tubular graft having a peripheral wall defining a lumen therein extending between first and second ends. One or more support elements, defining the exo-skeleton, are attached to the tubular graft, each support element extending generally peripherally around the tubular graft, each support element including generally axial segments and generally peripheral segments. A plurality of first fasteners attach the plurality of support elements to the wall of the tubular graft, at least one generally axial segment being slidably engaged by each first fastener. A plurality of second fasteners also attach the plurality of support elements to the wall of the tubular graft, each second fastener substantially anchoring a generally peripheral segment of the respective support element to the wall of the tubular graft. The stent-graft also includes first and second stents on the first and second ends for substantially anchoring the respective ends within a body passage.

L'invention concerne une endoprothèse comportant un exosquelette fixé à une prothèse tubulaire, laquelle comprend une paroi périphérique définissant une lumière intérieure s'étendant d'une extrémité à l'autre. Un ou plusieurs éléments support, définissant l'exosquelette et fixés à la prothèse tubulaire, sont situés autour de la prothèse tubulaire de manière sensiblement périphérique, et comportent généralement des segments sensiblement axiaux et des segments sensiblement périphériques. Plusieurs attaches d'un premier ensemble fixent les éléments supports à la paroi de la prothèse tubulaire, un segment sensiblement axial au moins étant engagé de façon coulissante dans chaque attache du premier ensemble. Plusieurs attaches d'un second ensemble fixent également les éléments supports à la paroi de la prothèse tubulaire, chaque attache du second ensemble ancrant un segment sensiblement périphérique de l'élément support respectif à la paroi de la prothèse tubulaire. L'endoprothèse comporte également un premier et un second stent à la première et la seconde extrémité destinés à ancrer les extrémités à l'intérieur d'un passage corporel.

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