发明名称 |
System and method for assessing coupling between an electrode and tissue |
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. |
申请公布号 |
US9173586(B2) |
申请公布日期 |
2015.11.03 |
申请号 |
US201313777580 |
申请日期 |
2013.02.26 |
申请人 |
St. Jude Medical, Atrial Fibrillation Division, Inc. |
发明人 |
Deno Don Curtis;Miller Stephan P.;Hill Lewis C.;Malinin Yuriy;Sih Haris J. |
分类号 |
A61B5/05;A61B5/053;A61B5/00;A61B18/12;A61B18/14;A61B18/00;A61B19/00 |
主分类号 |
A61B5/05 |
代理机构 |
Dykema Gossett PLLC |
代理人 |
Dykema Gossett PLLC |
主权项 |
1. A system for assessing a degree of coupling between a first electrode and a tissue in a body, comprising:
a complex impedance sensor; and, an electronic control unit configured to acquire values for first and second components of a complex impedance between said first electrode and said tissue responsive to one or more signals output by said complex impedance sensor and to calculate a first coupling index responsive to said values and a first variable parameter associated with said system, said first coupling index indicative of a degree of coupling between said first electrode and said tissue. |
地址 |
St. Paul MN US |