Multi-function electrode structures for electrically analyzing a

Details Multi-function electrode structures for electrically analyzing a Multi-function electrode structures for electrically analyzing a

1996-04-08

1998-11-17

Cohen, Lee S.

Surgery

Diagnostic testing

Structure of body-contacting electrode or electrode inserted...

606 41, 607 99, 607122, A61B 504, A61B 1739

Patent

active

058368744

ABSTRACT:
Systems and methods for heating body tissue place a multi-function structure having an exterior wall in contact with body tissue. The structure includes an array of electrically conducting electrode segments carried by the exterior wall. An electrically conductive network is coupled to the electrode segments, including at least one electrically conductive path individually coupled to each electrode segment. The systems and methods operate in a first mode during which the network is electrically conditioned to individually sense at each electrode segment local electrical events in tissue, such as electrical potentials, resistivity, or impedance. The systems and methods operate in a second mode during which the network is electrically conditioned, based at least in part upon local electrical events sensed by the electrode segments, to couple at least two electrode segments together to simultaneously transmit electrical energy to heat or ablate a region of body tissue.

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