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Unfurling electrode devices with spring
专利权人:
COVIDIEN LP
发明人:
Hillary K. Huszar,Christopher L. Bagley,Allen D. Jameson,Alexander A. Lubinski,Mark A. Maguire,David S. Utley
申请号:
US14519950
公开号:
US09743981B2
申请日:
2014.10.21
申请国别(地区):
US
年份:
2017
代理人:
摘要:
Methods, systems, and devices for providing treatment to a tissue in body lumens are described. The system may include a catheter, an expansion member coupled with a distal portion of the catheter, an ablation structure including one or more longitudinal electrode segments, and an ablation structure support coupled to the ablation structure configured to at least partially unfurl as the expansion member expands and furl as the expansion member contracts. The ablation structure may include multiple separately wired and/or separately controlled longitudinal electrodes, longitudinal electrode zones, or both, such that each longitudinal electrode or longitudinal electrode zone may be selectively enabled or selectively disabled. In some instances, one or more springs are coupled to the ablation structure configured to promote unfurl or furl around the expansion member. In some instances, one or more protection elements are be positioned along the catheter.
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