Expandable-collapsible electrode structures for capacitive coupl

Details Expandable-collapsible electrode structures for capacitive coupl Expandable-collapsible electrode structures for capacitive coupl

1996-04-08

1999-07-20

Cohen, Lee

Surgery

Instruments

Electrical application

606 34, 600374, 607 99, 607105, 607113, 607122, A61B 1739

Patent

active

059250380

ABSTRACT:
Electrode assemblies and associated systems employ a nonporous wall having an exterior for contacting tissue. The exterior peripherally surrounds an interior area. The wall is essentially free of electrically conductive material. The wall is adapted to assume an expanded geometry having a first maximum diameter and a collapsed geometry having a second maximum diameter less than the first maximum diameter. The assemblies and systems include a lumen that conveys a medium containing ions into the interior area. An element free of physical contact with the wall couples the medium within the interior area to a source of electrical energy to enable ionic transport of electrical energy from the source through the medium to the wall for capacitive coupling to tissue contacting the exterior of the wall.

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