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US 8,556,892 B2Granted
Systems and methods for transmural ablation
AssigneeMedtronic, Inc.
InventorsJinback Hong, David E. Francischelli, Mark T. Stewart
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Abstract
A method of applying ablation energy to achieve transmurality including applying ablation energy at a starting power to a tissue site and monitoring the impedance of the tissue site. A power applied to the tissue site can be reduced as a function of a rate of an increase in impedance according to some embodiments.
Claims14
A method of applying ablation energy to achieve transmurality at a tissue site, the method comprising:
- applying ablation energy at a first power to the tissue site;
- monitoring impedance of the tissue site;
- reducing the ablation energy applied to the tissue site to a second power in response to a rise in impedance;
- and
- monitoring total ablation energy delivered, and indicating transmurality if the total ablation energy delivered exceeds a preset minimum following the rise in impedance.
2 more elements
Dependencies are inferred from the claim text.