发明名称 |
Thermoelastic and superelastic Ni-Ti-W alloy |
摘要 |
A radiopaque nitinol stent for implantation in a body lumen is disclosed. The stent is made from a superelastic alloy such as nickel-titanium or nitinol, and includes a ternary element including tungsten. The added tungsten in specified amounts improve the radiopacity of the nitinol stent comparable to that of a stainless steel stent of the same strut pattern coated with a thin layer of gold. Furthermore, the nitinol stent has improved radiopacity yet retains its superelastic and shape memory behavior and further maintains a thin strut/wall thickness for high flexibility.
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申请公布号 |
US6569194(B1) |
申请公布日期 |
2003.05.27 |
申请号 |
US20000752785 |
申请日期 |
2000.12.28 |
申请人 |
ADVANCED CARDIOVASCULAR SYSTEMS, INC. |
发明人 |
PELTON BRIAN LEE |
分类号 |
A61F2/00;A61F2/06;A61F2/90;A61L31/02;A61L31/18;C22C19/03;C22F1/00;(IPC1-7):A61F2/06;A61F2/76;A61F9/00 |
主分类号 |
A61F2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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