System and method for adaptive RF ablation

摘要

A medical method, device, and system are provided, including advancing an ablation element of a medical device into contact with tissue to be treated, selecting a power level of energy to ablate the tissue, delivering energy at the selected power level to the ablation element, determining whether the ablation element is in continuous contact with the tissue, and reducing the selected power level when the ablation element ceases to be in continuous contact with the tissue.

主权项

1. A medical method, comprising:
advancing an ablation element of a medical device into contact with tissue to be treated; supplying power from a power source to the ablation element to ablate the tissue; monitoring a temperature of the ablation element; then determining a state of contact between the ablation element and the tissue based on the temperature of the ablation element; then, after a determination that the state of contact is that continuous tissue contact has been lost, initiating a reduction in the power supplied by the power source; and when the ablation element regains continuous tissue contact; and the state of regained continuous tissue contact has continued for at least three seconds, then initiating an increase in the power supplied by the power source.