您的位置: 首页 > 农业专利 > 详情页

Electrosurgical instrument and method
专利权人:
Csaba Truckai
发明人:
Csaba Truckai,John H. Shadduck
申请号:
US12406914
公开号:
US08192428B2
申请日:
2009.03.18
申请国别(地区):
US
年份:
2012
代理人:
摘要:
An electrosurgical instrument and method for treating varicose veins. In one embodiment, an elongate catheter has a distal working end that carries an electrosurgical energy delivery surface comprising at least one electrode with a positive temperature coefficient of resistance (PTCR) surface and/or an electrode with a pressure sensitive variable resistance to provide a smart surface for controlling Rf current flow at the interface of electrosurgical surface and the tissue. The electrode surface then can limit or modulate Rf energy delivery through the surface in response to the temperature of the surface or the engagement pressure of the surface against the engaged tissue. In operation, the smart electrosurgical surface prevents arcing at the electrode-tissue interface, and thus controls ohmic heating to prevent tissue desiccation, charring and emboli formation.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
相关专利

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充