William J. Smith,Ricardo Vallejo,David Leonardo Cedeno
申请号：
US16294667
公开号：
US20190274755A1
申请日:
2019.03.06
申请国别(地区):
US
年份:
2019
代理人:
摘要：
Techniques are disclosed for ablating a tissue mass with a radio-frequency signal. In some examples, the method includes delivering a radio-frequency signal through an impedance modulation element to an introducer to create a lesion on the tissue mass. The method also includes modulating an impedance of the impedance modulation element, determining an overall impedance of the impedance modulation element and the tissue mass, and controlling an amplitude of the radio-frequency signal based on the determined overall impedance. The method further includes controlling a size of the lesion based on the amplitude of the radio-frequency signal.
