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US 2012/0053674 A1Published application
Bioerodible endoprostheses and methods of making the same
AssigneeBoston Scientific Scimed, Inc.
InventorsDennis A. Boismier, Timothy S. Girton, Steven R. 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.
Claims21
1-23. (canceled)
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.
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 cross-section of the body in the X-Y plane can be characterized as an initial geometric shape having 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 geometric shape in the X-Y plane is maintained.
Dependencies are inferred from the claim text.