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US 2008/0082162 A1Published application
Bioerodible endoprostheses and methods of making the same
AssigneeBoston Scientific Scimed, Inc.
InventorsDennis Boismier, Timothy Girton, Steven Larsen, Matt Shedlov, Ken Merdan, Barry O`Brien
Life of this patent
Estimating the term…
Abstract
A bioerodible endoprosthesis erodes to a desirable geometry that can provide, e.g., improved mechanical properties or degradation characteristics.
Claims27
An endoprosthesis, comprising:
- a body comprising a bioerodible metal material, the body having a cross-section in the X-Y plane and extending along a z-axis, wherein the body has an initial geometry in the X-Y plane characterized by initial dimensions, and
- an erosion modifying material provided on the surface of the body which controls erosion to form a predetermined geometry such that, after erosion of at least about 50 percent of the area of the body in the X-Y plane, at least one initial dimension of the initial geometry is maintained.
An endoprosthesis, comprising:
- a body comprising a bioerodible metal material, the body having a cross-section in the X-Y plane and extending along a z-axis, wherein the body has an initial geometry in the X-Y plane characterized by initial dimensions, and
- a predetermined geometry after erosion of at least about 50 percent of the area of the body in the X-Y plane in the shape of an I, an X, an interdigitated structure, a radially lobed structure, or a convex structure.
An endoprosthesis, comprising:
- a body comprising a bioerodible metal material, the body having a cross-section in the X-Y plane and extending along a z-axis, wherein the body has an initial geometry in the X-Y plane characterized by initial dimensions, and
- an erosion modifying material provided on the surface of the body which controls erosion to form a predetermined geometry, the modifying material being provided in a pattern of at least three separate regions in the X-Y plane.
Dependencies are inferred from the claim text.