Endoprosthesis
AssigneeBiotronik Vi Patent AG
InventorsBjoern Klocke, Johannes Riedmueller
Life of this patent
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Abstract
An endoprosthesis, in particular an intraluminal endoprosthesis, for example a stent, having a base body composed at least partially of a metallic material, and having a functional element which is attached to the base body or imbedded therein and which contains material that is radiopaque and/or X-ray opaque and has a different material composition, at least in a portion of its volume, compared to the material of the base body. To avoid contact corrosion and undesired corrosion, the functional element is provided with a barrier layer which electrically insulates the radiopaque and/or X-ray opaque material from the base body.
Claims14
An endoprosthesis having a base body composed at least partially of a metallic material, and having a functional element which is attached to the base body or imbedded therein and which contains material that is radiopaque and/or X-ray opaque and has a different material composition, at least in a portion of its volume, compared to the material of the base body, characterized in that:
- the functional element comprises two through openings and a barrier layer which electrically insulates the radiopaque and/or X-ray opaque material from the base body;
- and
- the base body comprises two finger elements that extend entirely through the through openings on a same functional element and are bent or rotated outward from the through openings.
An endoprosthesis having a base body composed at least partially of a metallic material, and having a functional element which is attached to the base body or imbedded therein and which contains material that is radiopaque and/or X-ray opaque and has a different material composition, at least in a portion of its volume, compared to the material of the base body, characterized in that:
- the functional element comprises a hollow cylinder with an opaque core and a barrier layer that completely encloses the core, which electrically insulates the radiopaque and/or X-ray opaque material from the base body, the functional element further comprising a circumferential groove on a lateral surface;
- and
- the base body comprises a forked element comprising an annular section that is situated in the circumferential groove.
Dependencies are inferred from the claim text.