Title:
中空ストラットを有するステントの製造方法
Document Type and Number:
Japanese Patent JP2013537440
Kind Code:
A
Abstract:
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.
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Inventors:
Stork christopher
Application Number:
JP2013519778A
Publication Date:
October 03, 2013
Filing Date:
July 12, 2011
Export Citation:
Assignee:
Medtronic Vascular Inc.
International Classes:
A61F2/915; A61L31/00
Domestic Patent References:
| JP2005328893A | 2005-12-02 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa