Jean-Pierre Lalonde,Regina E. Groves,Timothy G. Laske,Paul A. Iaizzo,John C. Bischof
申请号：
US14192512
公开号：
US10098685B2
申请日:
2014.02.27
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A method and system for providing lesion depth feedback during an ablation procedure. In particular, the method and system provide feedback data or information relating to lesion depth in myocardial tissue during a cryoablation procedure. A plurality of tissue temperature measurements may be transmitted from a plurality of thermocouples disposed on a cryotreatment element, which measurements may be used to determine a slope of change in temperature sensed by each thermocouple over time. The circulation of coolant through the treatment element may be adjusted when the slope changes. A change in slope may indicate that the cryoablation temperatures have passed through target myocardial tissue into non-target, non-myocardial tissue, which may result in collateral damage to structures near the heart.
