Over-the-wire high frequency electrode
First Claim
1. A device for ablating tissue in the living body comprising:
- a guide element; and
an elongate member defining a longitudinal passage having a distal opening and a proximal opening dimensioned to pass along and over the guide element directed into the tissue, the elongated member including an electrode disposed at a distal portion of the elongate member and configured to be energized with high frequency energy to ablate tissue.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for ablation of target tissue in the living body such as a tumor comprises an elongate member that can be guided over a guide element into the target tissue. The elongated element has an electrode at its distal portion. The electrode is configured to be energized with high frequency energy to ablate the target tissue. The elongate member has a guide hole through it and is configured to pass over a guide element that has perforated and penetrated the skin and tissue along a tract to the target volume. The elongate member can be made of a rigid metal tube or a flexible plastic tube. The elongate member can include a cooling channel within it so that cooling fluid can be circulated within the elongate member to cool the electrode, and thus to enlarge the ablation volume at the target tissue.
181 Citations
38 Claims
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1. A device for ablating tissue in the living body comprising:
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a guide element; and
an elongate member defining a longitudinal passage having a distal opening and a proximal opening dimensioned to pass along and over the guide element directed into the tissue, the elongated member including an electrode disposed at a distal portion of the elongate member and configured to be energized with high frequency energy to ablate tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A system for ablation of tissue in the living body comprising:
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a guide element; and
an ablation system including;
an elongate member defining a longitudinal channel having a distal opening and proximal opening, the elongate member being dimensioned to slide along and over the guide element directed into the tissue; and
an electrode at a distal portion of the elongate member and configured to be energized with high frequency energy to ablate the tissue. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for thermal ablation of a target volume comprising:
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perforating and penetrating a living body using a guide element to establish a tract through the body to the target volume;
sliding an electrode along and over the guide element directed into the body to position the electrode near the target volume, the electrode including an elongate member defining a longitudinal passage dimensioned to pass along the guide wire, a conductive surface at a distal portion of the elongate member, and an electrical connection between the conductive surface and a proximal portion of the elongate member;
connecting the electrical connection to a high frequency generator;
supplying high frequency energy from the generator through the electrode to the target volume to thermally ablate the target volume. - View Dependent Claims (34, 35, 36, 37, 38)
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Specification