发明授权
- 专利标题: Covered stent with encapsulated ends
- 专利标题(中): 具有封装端的覆盖支架
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申请号: US09430154申请日: 1999-10-29
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公开(公告)号: US06579314B1公开(公告)日: 2003-06-17
- 发明人: Sylvie Lombardi , Guido Koch , Richard Layne , Tarun Edwin , Wolfgang Supper , Walter Gamer , Thomas Kirchhoff
- 申请人: Sylvie Lombardi , Guido Koch , Richard Layne , Tarun Edwin , Wolfgang Supper , Walter Gamer , Thomas Kirchhoff
- 主分类号: A61F206
- IPC分类号: A61F206
摘要:
A portion of a covered stent is encapsulated with ePTFE, so that the unencapsulated portion, which is covered by a single ePTFE covering, imparts an unimpaired flexibility to the stent. One surface of the stent, either the luminal or abluminal surface, is covered by a single continuous layer of ePTFE, while limited regions, preferably near the ends of the stent, of the other surface are also covered by ePTFE. The regions covered by ePTFE on both surfaces become encapsulated when the ePTFE of one layer becomes bonded to second layer. By leaving a middle region of the stent unencapsulated, the stent retains flexibility similar to a bare stent, thereby reducing the loading and deployment forces.
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