发明名称 |
Method of Making a Stent with Hollow Struts |
摘要 |
A stent including hollow struts is formed on a cylindrical substrate. The struts of the stent are formed by electroforming metal layers of the strut in openings formed in a patterned photoresist material. A first metal layer forming the inner strut material is formed in openings in a first photoresist material. A sacrificial material to form the cavity to make the struts hollow is formed in openings in a second photoresist material. A second metal layer forming the side walls and outer wall of the struts is formed in openings in a third photoresist material and around the sacrificial material. The photoresist materials are removed. The substrate and cavity sacrificial material are removed, leaving hollow struts formed into a stent pattern. The hollow struts may be filled with a therapeutic substance for elution. Openings through the struts to the cavity may be formed during the forming process. |
申请公布号 |
US2012009325(A1) |
申请公布日期 |
2012.01.12 |
申请号 |
US20100834274 |
申请日期 |
2010.07.12 |
申请人 |
STORMENT CHRISTOPHER;MEDTRONIC VASCULAR, INC. |
发明人 |
STORMENT CHRISTOPHER |
分类号 |
A61F2/02;A61F2/82;A61K9/00;B05D5/00;C25D1/08 |
主分类号 |
A61F2/02 |
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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