St. Jude Medical; Atrial Fibrillation Division; Inc.
发明人:
Don Curtis Deno,Stephan P. Miller,Lewis C. Hill,Yuriy Malinin,Haris Sih
申请号：
US14878182
公开号：
US20160095642A1
申请日:
2015.10.08
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A system and method for assessing a degree of coupling between an electrode and tissue in a body is provided. Values for first and second components of a complex impedance (e.g., resistance and reactance or impedance magnitude and phase angle) between the electrode and the tissue are obtained. These values are used together with a standardization value indicative of a deviation from a reference standard by a parameter associated with at least one of the body, the electrode and another component of the system to calculate a coupling index that is indicative of a degree of coupling between the electrode and the tissue. The coupling index may be displayed to a clinician in a variety of ways to indicate the degree of coupling to the clinician. The system and method find particular application in ablation of tissue by permitting a clinician to create lesions in the tissue more effectively and safely.
