发明名称 |
Method and device for performing cooling- or cryo-therapies for, e.g., angioplasty with reduced restenosis or pulmonary vein cell necrosis to inhibit atrial fibrillation employing microporous balloon |
摘要 |
An enhanced method and device are provided to inhibit or reduce restenosis following angioplasty or stent placement. A porous balloon-tipped catheter is disposed in the area treated or opened through balloon angioplasty immediately following angioplasty. The balloon, which can have a dual balloon structure, may be delivered through a guiding catheter and over a guidewire already in place. A fluid such as a perfluorocarbon flows into the balloon to freeze the tissue adjacent the balloon, this cooling being associated with reduction of restenosis. A similar catheter may be used to reduce atrial fibrillation by inserting and inflating the porous balloon such that an exterior surface of the balloon, as well as a portion of the cold working fluid, from the microporosity contacts at least a partial circumference of the portion of the pulmonary vein adjacent the left atrium.
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申请公布号 |
US7449018(B2) |
申请公布日期 |
2008.11.11 |
申请号 |
US20040753913 |
申请日期 |
2004.01.07 |
申请人 |
INNERCOOL THERAPIES, INC. |
发明人 |
KRAMER HANS W. |
分类号 |
A61B18/02;A61B17/22;A61B18/00;A61B18/08;A61F7/12 |
主分类号 |
A61B18/02 |
代理机构 |
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代理人 |
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地址 |
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