Bifurcated stent with surface area gradient

A - Human Necessities – 61 – F

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A61F 2/90 (2006.01)

Patent

CA 2640121

A stent (10) may comprise a plurality of interconnected strut members (22) defining a plurality of serpentine bands (20) and a plurality of connector struts (16) . Adjacent serpentine bands may be connected by at least one connector strut. The stent may further comprise an outwardly deployable side branch structure (42) . The total amount of surface area of structural strut members in a given unit area on the surface of the stent is higher in areas (Al, A5) near the side branch structure than in areas (A2, A3) spaced away from the side branch structure .

L'invention a pour objet un stent (10) comprenant une pluralité de membres d'étais interconnectés (22) définissant une pluralité de bandes sinueuses (20) et une pluralité d'étais connecteurs (16). Des bandes sinueuses adjacentes peuvent être connectées par au moins un étai connecteur. Le stent peut en outre comprendre une structure de branchement latéral déployable extérieurement (42). La surface totale des membres d'étais structurels dans une région unitaire donnée à la surface du stent est plus élevée dans les régions (Al,A5) proches de la structure de branchement latéral que dans les régions (A2,A3) éloignées de la structure de branchement latéral.

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