Cytyc Surgical Products

Hologic, Inc.

Cytyc Corporation

Novacept, Inc.

Arqos Surgical, Inc.

Bruno Strul

Russel Mahlon Sampson

Csaba Truckai

Mark Leo Kane

An apparatus and method for use in performing ablation of organs and other tissues includes a radio frequency generator which provides a radio frequency signal to ablation electrodes. The power level of the radio frequency signal is determined based on the subject area of ablation. The radio frequency signal is coupled with the ablation electrodes through a transformation circuit. The transformation circuit includes a high impedance transformation circuit and a low impedance transformation circuit. The high or low impedance transformation circuit is selected based on the impedance of the ablation electrodes in contact with the subject tissue. Vacuum level, impedance level, resistance level, and time are measured during ablation. If these parameters exceed determinable limits the ablation procedure is terminated.

Radio-frequency generator for powering an ablation device

The present invention relates to the field of electrosurgery, and more particularly to systems and methods for ablating, cauterizing and/or coagulating body tissue using radio frequency energy. More in particular, the systems utilize voltage threshold means for controlling the voltage applied to tissue in a cycle-to-cycle manner.

Voltage threshold ablation apparatus

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Portolla Valley, CA, United States of America

Bruno Strul