ASSESSMENT OF ELECTRODE COUPLING FOR TISSUE ABLATION
摘要
An electrode catheter and a method for assessing electrode-tissue contact and coupling are disclosed. An exemplary electrode catheter comprises an electrode adapted to apply electrical energy. A measurement circuit is adapted to measure impedance between the electrode and ground as the electrode approaches a target tissue. A processor determines a contact and coupling condition for the target tissue based at least in part on reactance of the impedance measured by the measurement circuit. In another exemplary embodiment, the electrode catheter determines the contact and coupling condition based at least in part on a phase angle of the impedance.
申请公布号
CA2631946(A1)
申请公布日期
2007.06.14
申请号
CA20062631946
申请日期
2006.12.06
申请人
ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.