Coated stent with surface structure or placeholder material to reduce crack formation
OwnerRobert Kay, Christoph Forkmann +1inventors
InventorsRobert Kay, Christoph Forkmann, Ullrich Bayer
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Abstract
A stent has a base body coated with a coating and extending in an axial direction, the base body has a plurality of mutually connected struts, each strut having at least one curved section which has a concave side and a convex side, the stent being expandable from an initial state into an expanded state, a curvature of the curved section being reduced in the expanded state compared to the initial state, and a surface structure on the concave side and/or a layer of a placeholder material between the coating and the curved section.
Claims18
A stent comprising a base body coated with a coating and extending in an axial direction, the base body comprising a plurality of mutually connected struts, each strut comprising at least one curved section which has a concave side and a convex side, the stent being expandable from an initial state into an expanded state, a curvature of the curved section being reduced in the expanded state compared to the initial state, and a surface structure on the concave side and/or a layer of a placeholder material between the coating and the curved section.
Dependencies are inferred from the claim text.