Bioerodible magnesium alloy microstructures for endoprostheses
US-10518001-B2 · Dec 31, 2019 · US
Implant and method for production thereof
US11266491B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11266491-B2 |
| Application number | US-201815880274-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 25, 2018 |
| Priority date | Feb 22, 2012 |
| Publication date | Mar 8, 2022 |
| Grant date | Mar 8, 2022 |
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Abstract
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An implant, in particular an intraluminal endoprosthesis, or a semi-finished part for an implant, having a hollow cylindrical body, wherein the body includes magnesium, and the body is enriched with gallium or a gallium alloy in a region close to a surface.
First claim
Opening claim text (preview).
What is claimed is: 1. An intraluminal endoprosthesis comprising a body that comprises a WE 43 magnesium alloy characterized as 4%, Y, 2%, Nd, 0.5% Gd, 0.5% Dy, 0.5% Zr, and a remainder Mg, and the body is enriched with a gallium alloy in a region close to a surface. 2. The intraluminal endoprosthesis according to claim 1 , wherein the endoprosthesis has a hollow cylindrical body. 3. An intraluminal endoprosthesis comprising a body that comprises magnesium, and the body is enriched with a gallium alloy in a region close to a surface. 4. The endoprosthesis according to claim 3 , the body further comprising a polymer coating. 5. The intraluminal endoprosthesis according to claim 3 , wherein the endoprosthesis has a hollow cylindrical body. 6. An implant, in particular an intraluminal endoprosthesis, comprising a body that comprises magnesium, and the body is enriched with a gallium alloy in a region close to a surface, wherein the gallium alloy comprises indium, tin and 65 to 95% gallium. 7. An implant, in particular an intraluminal endoprosthesis that comprises magnesium, and the body is enriched with gallium or a gallium alloy in a region close to a surface, wherein the region close to the surface comprises a depth of up to 40 μm from the surface. 8. The implant according to claim 7 , wherein the region close to the surface comprises a depth of at least 10 μm from the surface. 9. The implant according to claim 7 , wherein the depth is at least 15 μm from the surface. 10. An intraluminal endoprosthesis comprising a body that comprises magnesium, and the body is enriched with a gallium alloy in a region close to a surface, the gallium alloy comprising 65 to 95% gallium.
Assignees
Inventors
Classifications
- A61L31/022Primary
Metals or alloys · CPC title
Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title
Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents (stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07) · CPC title
Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences · CPC title
Alloys based on magnesium · CPC title
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Frequently asked questions
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- What does patent US11266491B2 cover?
- An implant, in particular an intraluminal endoprosthesis, or a semi-finished part for an implant, having a hollow cylindrical body, wherein the body includes magnesium, and the body is enriched with gallium or a gallium alloy in a region close to a surface.
- Who is the assignee on this patent?
- Biotronik Ag
- What technology area does this patent fall under?
- Primary CPC classification A61L31/022. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 08 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).