Jia Hua Xiao;Jerome Jackson;Roger Alan Stern;Grant Michael Glaze
发明人:
Roger Alan Stern,Jia Hua Xiao,Jerome Jackson,Grant Michael Glaze
申请号：
US12927311
公开号：
US09173702B2
申请日:
2010.11.10
申请国别(地区):
US
年份:
2015
代理人:
摘要：
An ablation apparatus places electrodes at the perimeter of a cavity. In an embodiment, the alternating electric field is used to expose the cavity to enough energy to ablate the cavity. In an embodiment, two modes are used to expose different regions of the cavity to different amounts of power for so that the thermal effect is more uniform. In an embodiment, the electrodes have a relatively large surface area so as to avoid charring the cavity, but are shaped so as to fit within a body orifice. For example, the diameter of the sheathed housing the electrodes during penetration may be only 5.5 mm.
