发明授权
- 专利标题: RF ablation catheter including a virtual electrode assembly
- 专利标题(中): RF消融导管包括虚拟电极组件
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申请号: US10656422申请日: 2003-09-05
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公开(公告)号: US07104989B2公开(公告)日: 2006-09-12
- 发明人: James R. Skarda
- 申请人: James R. Skarda
- 申请人地址: US MN Minneapolis
- 专利权人: Medtronic, Inc.
- 当前专利权人: Medtronic, Inc.
- 当前专利权人地址: US MN Minneapolis
- 代理商 Michael C. Soldner; Girma Wolde-Michael
- 主分类号: A61B18/18
- IPC分类号: A61B18/18
摘要:
A virtual ablation electrode assembly includes a non-conductive outer cap fitted over an inner electrode to form a fluid chamber between a cap inner surface and an exterior surface of the electrode. The inner electrode includes an interior fluid trunk and one or more fluid distribution branches extending from the fluid trunk to the exterior surface. A plurality of pores extends between the cap inner surface and a cap outer surface. When the electrode is energized and when fluid is delivered through the one or more fluid distribution branches from the trunk, the conductive fluid fills the fluid chamber and flows out from the chamber through the plurality of pores of the cap establishing ionic transport of ablation energy from the inner electrode to a target site in close proximity to the cap.
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