David Ian Ruddenklau,Paul Christopher Roberts,Alan Edward Green
申请号:
US13810865
公开号:
US20130345689A1
申请日:
2011.05.20
申请国别(地区):
US
年份:
2013
代理人:
摘要:
A medical device is described having a handle and an end effector coupled to the handle. The end effector has at least one electrode for providing electrical signals to a tissue or vessel to be treated. An RF drive circuit is provided for generating an RF drive signal that is applied to the end effector electrode. The RF drive circuit includes a resonant circuit and a frequency controller is used to vary the frequency of a signal passed through the resonant circuit in order to control the power supplied to the end effector electrode.