发明名称 |
METHOD AND APPARATUS FOR CONTROLLING LESION SIZE IN CATHETER-BASED ABLATION TREATMENT |
摘要 |
A method and apparatus that utilizes a force-time integral for real time estimation of lesion (46) size in catheter-based (32) ablation systems (30). The apparatus measures the force exerted by a contact ablation probe (36, 38) on a target tissue (40) and integrates the force over an energization time of the ablation probe. The force-time integral can be calculated and utilized to provide an estimated lesion (46) size (depth, volume and/or area) in real time. The force-time integral may also account for variations in the power (42) delivered to the target tissue (40) in real time to provide an improved estimation of the lesion (46) size. In one embodiment, the force metric can be used as feedback to establish a desired power level delivered to the probe (36, 38) to prevent steam popping. |
申请公布号 |
EP3037055(A1) |
申请公布日期 |
2016.06.29 |
申请号 |
EP20150195102 |
申请日期 |
2010.05.10 |
申请人 |
ST. JUDE MEDICAL LUXEMBOURG HOLDING S.À.R.L. |
发明人 |
LEO, GIOVANNI;SHAH, DIPEN;LAMBERT, HENDRIK |
分类号 |
A61B18/14;A61B5/00;A61B5/103;A61B18/00;A61B18/08;A61B34/10;A61B90/00 |
主分类号 |
A61B18/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|