Apparatus and method for treatment of body tissues

Details Apparatus and method for treatment of body tissues Apparatus and method for treatment of body tissues

1997-08-04

2000-05-02

Dvorak, Linda C. M.

Surgery

Instruments

Electrical application

606 42, 606 45, 607101, A61B 1739

Patent

active

060567473

ABSTRACT:
An apparatus, system, and method for treating body tissue includes an electrode assembly having a first electrode and a second electrode, with at least the first electrode formed of a foam-like material. Conductive fluid is delivered to the operating site, which may involve injecting the conductive fluid through the porous foam-like material of the first electrode via a fluid supply conduit. The apparatus may also include a fluid withdrawal conduit. The second electrode may also be formed of a foam-like material. The electrode assembly may be positioned on a catheter shaft having a distal end, with the first electrode positioned on the catheter shaft distal end. In treating desired tissue at a selected operational site, the electrode assembly is introduced to the site with one or more of the first electrodes positioned adjacent to the desired tissue. Conductive fluid, such as a saline solution, is delivered to the operational site via the supply conduit. Electrical power is provided across the first electrode and second electrode via a power supply, which may be an RF power supply.

REFERENCES:
patent: 4682596 (1987-07-01), Bales et al.

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