ST. JUDE MEDICAL; ATRIAL FIBRILLATION DIVISION; INC.
发明人:
PAUL, SAURAV,CAO, HONG,BELHE, KEDAR RAVINDRA
申请号：
CA2631940
公开号：
CA2631940C
申请日:
2006.12.06
申请国别(地区):
CA
年份:
2016
代理人:
摘要：
An electrode catheter (14) and a method for assessing electrode-tissue contactand coupling are disclosed. An exemplary electrode catheter (14) comprises anelectrode (20) adapted to apply electrical energy. A measurement circuit (42)is adapted to measure impedance between the electrode (20) and ground as theelectrode approaches a target tissue (24). A processor (50) determines acontact and coupling condition for the target tissue (24) based at least inpart on reactance of the impedance measured by the measurement circuit (42).In another exemplary embodiment, the electrode catheter (14) determines thecontact and coupling condition based at least in part on a phase angle of theimpedance.
