发明授权
- 专利标题: Mesh stent with variable hoop strength
- 专利标题(中): 具有可变箍强度的网状支架
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申请号: US09399211申请日: 1999-09-17
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公开(公告)号: US06183503B2公开(公告)日: 2001-02-06
- 发明人: Charles C. Hart , John Brustad , Said Hilal
- 申请人: Charles C. Hart , John Brustad , Said Hilal
- 主分类号: A61F206
- IPC分类号: A61F206
摘要:
A stent is adapted for disposition in a body conduit of a patient and comprises a mesh formed in the configuration of a tube and having an axis and axial convolutions, which facilitate movement between a low-profile state and a high-profile state. The tube in the low-profile state has an elongate configuration and a wall with a first thickness and first tube strength. The tube in the high-profile state has a compressed configuration and a wall with a second thickness greater than the first thickness and a second hoop strength greater than the first hoop strength. An associated method of use includes the steps of mounting the step on a catheter between first and second enlargement members, increasing the size of the enlargement members, and moving the enlargement members to axially compress the stent to the high-profile state. An associated method of manufacture includes the steps of corrugating the mesh on a mandrel by moving the ends of the mesh toward each other. The mesh can then be heat-set in the high-profile state.
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