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EXPANDABLE CATHETER SYSTEM FOR VESSEL WALL INJECTION AND MUSCLE AND NERVE FIBER ABLATION
专利权人:
TIM A. FISCHELL;DAVID R. FISCHELL
发明人:
DAVID R. FISCHELL,TIM A. FISCHELL
申请号:
US13294439
公开号:
US20130053792A1
申请日:
2011.11.11
申请国别(地区):
US
年份:
2013
代理人:
摘要:
A catheter-based/intravascular ablation (denervation) system includes a multiplicity of needles which expand open around a central axis to engage the wall of a blood vessel, or the wall of the left atrium, allowing the injection of a cytotoxic or/or neurotoxic solution for ablating conducting tissue, or nerve fibers around the ostium of the pulmonary vein, or circumferentially in or just beyond the outer layer of the renal artery. The expandable needle delivery system is formed with self-expanding materials and include structures, near the end portion of the needles, or using separate guide tubes. The system also includes means to limit and/or adjust the depth of penetration of the ablative fluid into the tissue of the wall of the targeted blood vessel.
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中国工程科技知识中心
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