Medical device with radiopacity
First Claim
Patent Images
1. A stent, comprising:
- a member includinga first portion; and
a second portion disposed outwardly of the first portion and havinga first layer including a radiopaque material that is more radiopaque than the first portion, wherein the radiopaque material is selected from the group consisting of gold, platinum, and palladium,a second layer comprising an alloy comprising the radiopaque material and a second material, anda third layer comprising an oxidized form of the alloy.
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Accused Products
Abstract
An endoprosthesis, such as a stent, having a layer that can enhance the biocompatibility of the endoprosthesis, and methods of making the endoprosthesis are disclosed.
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Citations
20 Claims
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1. A stent, comprising:
a member including a first portion; and a second portion disposed outwardly of the first portion and having a first layer including a radiopaque material that is more radiopaque than the first portion, wherein the radiopaque material is selected from the group consisting of gold, platinum, and palladium, a second layer comprising an alloy comprising the radiopaque material and a second material, and a third layer comprising an oxidized form of the alloy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 18, 19)
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10. A stent, comprising:
a member including a first portion having a first layer including a radiopaque material, wherein the radiopaque material is selected from the group consisting of gold, platinum, and palladium, and a second layer comprising an alloy comprising the radiopaque material and a second material, and a third layer comprising an oxidized form of the alloy. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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20. A stent, comprising:
- a member including
an innermost first portion; and a second portion disposed outwardly of the first portion and having a first layer including a radiopaque material that is more radiopaque than the first portion, a second layer comprising an alloy comprising the radiopaque material and a second material, wherein at least one of the radiopaque material and the second material comprises iridium, and a third layer comprising an oxidized form of the alloy, the oxidized form comprising an oxide.
- a member including
Specification