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US 2010/0305684 A1Published application
Biodegradable stent and method for manufacturing the same
AssigneesSnu R&Db Foundation, Iljin Copper Foil Co., Ltd.
InventorsHYOUN EE KIM, JI HOON JO, SANG BEOM KIM
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Abstract
A stent includes a magnesium layer, a ceramic layer formed over the magnesium layer, and a magnesium compound layer interposed between the magnesium layer and the ceramic layer. The initial corrosion of the stent can be delayed, and the stent has excellent biocompatibility and thus can reduce side effects during cell proliferation and differentiation.
Claims20
A stent comprising:
- a magnesium-dominant metallic layer;
- a ceramic layer formed over the magnesium-dominant metallic layer;
- and
- a magnesium-containing nonmetallic layer comprising a magnesium-containing compound and interposed between the metallic layer and the ceramic layer.
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A method of making a stent, the method comprising:
- providing a structure comprising a magnesium-dominant metallic layer and a magnesium-containing nonmetallic layer over the metallic layer;
- and
- forming a ceramic layer over the structure such that the nonmetallic layer is interposed between the metallic layer and the ceramic layer.
A method of making a stent, the method comprising:
- providing a magnesium-dominant metallic material in a stent shape;
- forming a magnesium-containing compound layer over the magnesium-dominant metallic material;
- and
- forming a ceramic layer over the magnesium compound layer.
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Dependencies are inferred from the claim text.