- 专利标题: Stent with anchors to prevent vulnerable plaque rupture during deployment
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申请号: US11776458申请日: 2007-07-11
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公开(公告)号: US08475518B2公开(公告)日: 2013-07-02
- 发明人: Daniel L. Cox , Christopher Feezor
- 申请人: Daniel L. Cox , Christopher Feezor
- 申请人地址: US CA Santa Clara
- 专利权人: Advanced Cardiovascular Systems, Inc.
- 当前专利权人: Advanced Cardiovascular Systems, Inc.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Fulwider Patton LLP
- 主分类号: A61F2/06
- IPC分类号: A61F2/06
摘要:
A stent for implantation in a body lumen for protecting from rupture a fibrous cap in order to treat vulnerable plaque. One embodiment of the stent achieves staged expansion through stronger and weaker circumferential regions, and includes optional anchors positioned at the circumferential transition between the stronger and weaker regions. During the first stage expansion, the weaker region expands moving the anchors laterally apart. The anchors straddle the fibrous cap and embed into the vessel wall. The second stage expansion of the stent exerts gentler stresses by the weaker region against the fibrous cap while the stronger region exerts greater stresses on the remainder of the vessel wall to open the vessel.