发明名称 |
RADIOPAQUE NITINOL ALLOYS FOR MEDICAL DEVICES |
摘要 |
There is described an alloy comprising titanium in an amount ranging from about 30 to about 52 atomic percent; platinum in an amount ranging from greater than 0 to about 15 atomic percent; and the balance nickel. A radiopaque nitinol medical device such as a stent for use with or implantation in a body lumen is disclosed. The stent is made from the superelastic alloy. The added ternary element (platinum) improves the radiopacity of the nitinol stent comparable to that of a stainless steel stent of the same size and strut pattern coated with a thin layer of gold. 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. |
申请公布号 |
EP1355685(B1) |
申请公布日期 |
2009.06.17 |
申请号 |
EP20010986121 |
申请日期 |
2001.12.06 |
申请人 |
ABBOTT CARDIOVASCULAR SYSTEMS INC. |
发明人 |
BOYLAN, JOHN, F.;COX, DANIEL, L. |
分类号 |
A61L29/00;A61L31/02;A61F2/00;A61F2/06;A61F2/84;A61F2/90;A61L31/18 |
主分类号 |
A61L29/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|