Apparatus and method for treating tumors near the surface of an organ
First Claim
1. A system for treating a target region in tissue beneath a tissue surface, said system comprising:
- a probe having a distal end adapted to be positioned beneath the tissue surface at a site in the tissue;
a plurality of electrodes deployable from the distal end of the probe to span a region of tissue proximate the target region; and
a surface electrode removably attachable to the probe and adapted for placement on the tissue surface over the target region, the surface electrode having an electrode face and an electrically and/or thermally insulated face opposite to the electrode face.
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Accused Products
Abstract
A system for treating a target region in tissue beneath a tissue surface comprises a probe for deploying an electrode array within the tissue and a surface electrode for engaging the tissue surface above the treatment site. Preferably, surface electrode includes a plurality of tissue-penetrating elements which advance into the tissue, and the surface electrode is removably attachable to the probe. The tissue may be treated in a monopolar fashion where the electrode array and surface electrode are attached to a common pole on an electrode surgical power supply and powered simultaneously or successively, or in a bipolar fashion where the electrode array and surface electrode are attached to opposite poles of the power supply. The systems are particularly useful for treating tumors and other tissue treatment regions which lie near the surface.
256 Citations
18 Claims
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1. A system for treating a target region in tissue beneath a tissue surface, said system comprising:
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a probe having a distal end adapted to be positioned beneath the tissue surface at a site in the tissue;
a plurality of electrodes deployable from the distal end of the probe to span a region of tissue proximate the target region; and
a surface electrode removably attachable to the probe and adapted for placement on the tissue surface over the target region, the surface electrode having an electrode face and an electrically and/or thermally insulated face opposite to the electrode face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for treating a target region in tissue beneath a tissue surface, said system comprising:
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a probe having a distal end adapted to be positioned beneath the tissue surface at a site in the tissue;
a plurality of electrodes deployable from the distal end of the probe to span a region of tissue proximate the target region; and
a cover adapted for placement on the tissue surface over the target region, the cover having a face, an edge, and a slot extending alone the face to the lateral edge for laterally receiving the probe. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification