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US 6,723,094 B1Granted
Electrode assembly for a surgical instrument provided for carrying out an electrothermal coagulation of tissue
OwnerKai Desingerinventor
Life of this patent
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Abstract
There is provided a surgical instrument for electrothermal coagulation of tissue, which includes a front cylinder at the distal end of the instrument having a distal tip, an elongate carrier, and two spaced cylindrical or strip-shaped electrodes at or on the carrier which are connectable to an HF-ac voltage source.
Claims26
A surgical instrument suitable for thermoelectric coagulation of tissue, the surgical instrument comprising:
- an electrically conductive front cylinder at a distal end of the instrument, the front cylinder having a distal tip and a cylindrical first electrode, wherein the first electrode includes an outside diameter;
- a tubular outer conductor proximate the front cylinder, the outer conductor having a cylindrical second electrode, wherein the second electrode includes an outside diameter, and wherein the first and second electrodes are adapted to be connected to a source of alternating voltage;
- an insulator element disposed between the front cylinder and the outer conductor;
- an inner conductor disposed within the outer conductor;
- and
- an insulating tube disposed between the inner conductor and the outer conductor;
- wherein the first electrode and the second electrode include substantially the same outside diameters.
4 more elements
Dependencies are inferred from the claim text.