Systems and methods for ablating body tissue using predicted max

Details Systems and methods for ablating body tissue using predicted max Systems and methods for ablating body tissue using predicted max

1995-05-01

1998-04-07

Peffley, Michael

Surgery

Instruments

Electrical application

606 31, 606 42, 607102, A61B 1739

Patent

active

057358460

ABSTRACT:
Systems and methods ablate body tissue using an electrode for contacting tissue at a tissue-electrode interface to transmit ablation energy at a determinable power level. The systems and methods include an element to remove heat from the electrode at a determinable rate. The systems and methods employ a processing element to derive a prediction of the maximum tissue temperature condition occurring beneath the tissue-electrode interface. The processing element controls the power level of ablation energy transmitted by the electrode, or the rate at which the electrode is cooled, or both, based, at least in part, upon the maximum tissue temperature prediction.

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Abstract 145; Radiofrequency CatheterAblation Using a Saline Irrigated Electrode in Patients with Prior Failed Accessory Pathway Ablation; Nakagawa et al; Pace, vol. 18; Apr. 1995, Part II.
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