Mechanically actuated stents and apparatus and methods for...

A - Human Necessities – 61 – F

Patent

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A61F 2/90 (2006.01) A61F 2/84 (2006.01)

Patent

CA 2609360

A stent is provided for deployment into an ostium communicating from a main vessel to a branch vessel. The stent includes a first tubular portion advanceable into the ostium that is expandable from a contracted condition to an expanded condition for dilating a lesion within the ostium. The stent includes a second tubular portion that may be flared radially outwardly to contact the ostium. The stent may be carried on a delivery apparatus including an actuator for expanding the second tubular portion, and one or more balloons for expanding the first distal portion and/or further expanding the proximal portion.

L'invention concerne une endoprothèse à déployer dans un ostium communiquant d'un vaisseau principal à un vaisseau secondaire. L'endoprothèse comporte une première partie tubulaire pouvant s'avancer dans l'ostium qui peut se dilater d'un état contracté à un état dilaté de façon à dilater une lésion à l'intérieur de l'ostium. L'endoprothèse comporte une seconde partie tubulaire qui peut être évasée radialement vers l'extérieur pour venir en contact avec l'ostium. L'endoprothèse peut être transportée sur un appareil d'administration comportant un actionneur conçu pour dilater la seconde partie tubulaire, et au moins un ballonnet destiné à dilater la première partie distale et/ou la partie proximale.

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