Electrosurgical cutting tool
AssigneeNuvotek Ltd.
InventorGarry Vincent Cobb
Life of this patent
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Abstract
The invention relates to an electrosurgical tool which includes in a housing an active and return electrode which can be controlled in use so that it is the active electrode which performs the electrosurgical function in contact with the body tissue. The tool may be controlled with the return electrode in contact with the body tissue but preferably not in contact with the body tissue. The return electrode is typically formed from a number of components spaced with respect to the active electrode.
Claims13
An electrosurgical tool for operation in conjunction with a power supply and control means which controls the power supply to the tool, said tool having a first end from which depend electrical connections to the power supply, and the tool includes a supply or active electrode, and a return electrode, the ends of which electrodes positioned at the end of the tool opposing the first end of the tool, define the end of the tool for performing an electrosurgical function when positioned in proximity with the body tissue and characterised in that at that end of the tool, the working end of the active electrode is positioned to protrude beyond the end of the return electrode to contact with the body tissue and the return electrode is formed from a plurality of spaced electrode components;
- and wherein,
- the tool is used in conjunction with a control means for an electrosurgical generator which utilises dynamic impedance feedback and adaptive algorithm techniques together with a wave guided biphasic RF/EM energy to generate a phased energy field around the active electrode of the tool at the working end of the tool.
Dependencies are inferred from the claim text.