发明名称 |
Safety cryotherapy catheter |
摘要 |
Improved devices, systems, and methods for inhibiting hyperplasia in blood vessels provide controlled and safe cryotherapy treatment of a target portion within a body lumen of a patient. Efficacy of endoluminal cryogenic cooling can be enhanced by limiting cooling of target tissues using a thermal barrier disposed between a dual balloon cryotherapy catheter. Containment of both balloons can be monitored by applying a vacuum within a space between the first and second balloons, and by coupling the vacuum space to a fluid shutoff so as to inhibit flow of cryogenic fluid in response to a change in the vacuum space. Controlled cooling of the vessel can be improved by use of a nebulizer in fluid communication with a cryogenic liquid supply lumen and a gas supply lumen.
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申请公布号 |
US2002183731(A1) |
申请公布日期 |
2002.12.05 |
申请号 |
US20020193811 |
申请日期 |
2002.07.11 |
申请人 |
CRYOVASCULAR SYSTEMS, INC., A DELAWARE CORPORATION |
发明人 |
HOLLAND TIMOTHY D.;JOYE JAMES;WILLIAMS RONALD;WILLIAMS RICHARD S. |
分类号 |
F25D3/10;A61B17/00;A61B17/22;A61B18/02;A61F7/12;A61M25/00;(IPC1-7):A61B18/02 |
主分类号 |
F25D3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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