发明名称 |
Apparatus for electrically isolating a cardiac chamber using ultrasound |
摘要 |
A catheter introduction apparatus provides an ultrasound assembly (26) for emission of ultrasound energy. In one application the catheter (10) and the ultrasound assembly are introduced percutaneously, and transseptally advanced to the ostium of a pulmonary vein. An anchoring balloon (22) is expanded to center an acoustic lens in the lumen of the pulmonary vein, such that energy is converged circumferentially onto the wall of the pulmonary vein when a transducer is energized. A circumferential ablation lesion is produced in the myocardial sleeve of the pulmonary vein, which effectively blocks electrical propagation between the pulmonary vein and the left atrium. <IMAGE>
|
申请公布号 |
EP1424100(A1) |
申请公布日期 |
2004.06.02 |
申请号 |
EP20030257414 |
申请日期 |
2003.11.25 |
申请人 |
BIOSENSE WEBSTER, INC. |
发明人 |
SCHWARTZ, YITZHACK;GOVARI, ASSAF |
分类号 |
A61B17/00;A61B18/00;A61M25/00;A61N7/02;(IPC1-7):A61N7/02 |
主分类号 |
A61B17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|