Bipolar surgical instruments having focused electrical fields

Details Bipolar surgical instruments having focused electrical fields Bipolar surgical instruments having focused electrical fields

1998-05-01

2000-02-29

Dvorak, Linda C. M.

Surgery

Instruments

Electrical application

606 51, A61B 1739

Patent

active

060303840

ABSTRACT:
A bipolar surgical device includes a pair of actuable jaws. A first electrode member which usually includes a line of electrically coupled tissue penetrating elements is formed on one of the jaws, and a second electrode member which usually includes a line of electrically coupled tissue penetrating elements is formed on the same or the other jaw. The electrode members are laterally spaced-apart and arranged in a parallel, usually linear manner so that the lateral distance therebetween remains generally constant. In operation, tissue may be grasped between the jaws so that the electrode members contact and/or the tissue penetrating elements enter into the tissue. By energizing the electrode members at opposite polarities using a high frequency energy source, tissue between the jaws will be heated, coagulated, and/or necrosed, while heating of tissue outside of the lines will be minimized.

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