Electrosurgical devices and methods
First Claim
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1. An electrosurgical system, comprising:
- an energy source; and
first and second electrodes each having a first end configured to couple to the energy source, and each having a second electrically conductive end configured to deliver energy to tissue of a patient in electrical contact therewith, wherein the energy source is operative to generate and deliver pulses of a biphasic radio frequency (RF) waveform to the tissue in electrical contact with the second electrically conductive ends of the first and second electrodes, and wherein the pulses induce non-thermal cell death in the tissue in electrical contact with the second electrically conductive ends of the first and second electrodes, wherein the energy source comprises an alternating current (AC) waveform generator, wherein the pulses cause no or minimal contraction in muscular tissue of the patient within reach of the biphasic radio frequency waveform during treatment of the tissue in the electrical contact with the second electrically conductive ends of the first and second electrodes.
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Abstract
An electrosurgical system may generally first and second electrodes coupled to an energy source operative to generate and deliver pulses of a biphasic radio frequency (RF) waveform to treat undesirable tissue in a patient. The pulses may induce non-thermal cell death in the patient'"'"'s tissue while causing no or minimal muscle contractions in the treated patient. The pulses may be grouped in bursts wherein the pulses within a burst repeat at a particular pulse frequency.
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Citations
21 Claims
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1. An electrosurgical system, comprising:
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an energy source; and first and second electrodes each having a first end configured to couple to the energy source, and each having a second electrically conductive end configured to deliver energy to tissue of a patient in electrical contact therewith, wherein the energy source is operative to generate and deliver pulses of a biphasic radio frequency (RF) waveform to the tissue in electrical contact with the second electrically conductive ends of the first and second electrodes, and wherein the pulses induce non-thermal cell death in the tissue in electrical contact with the second electrically conductive ends of the first and second electrodes, wherein the energy source comprises an alternating current (AC) waveform generator, wherein the pulses cause no or minimal contraction in muscular tissue of the patient within reach of the biphasic radio frequency waveform during treatment of the tissue in the electrical contact with the second electrically conductive ends of the first and second electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electrosurgical system, comprising:
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an energy source; and first and second electrodes each having a first end configured to couple to the energy source, and each having a second electrically conductive end configured to deliver energy to tissue in electrical contact therewith, wherein the energy source is operative to generate and deliver pulses of a biphasic radio frequency (RF) waveform to the tissue in electrical contact with the second electrically conductive ends of the first and second electrodes, and wherein the pulses induce a change in voltage potential across cell membranes in the tissue in electrical contact with the second electrically conductive ends of the first and second electrodes, wherein the energy source comprises an alternating current (AC) waveform generator, wherein the pulses cause no or minimal contraction in muscular tissue of the patient in electrical contact with the second electrically conductive ends of the first and second electrodes during treatment of the tissue in the electrical contact with the second electrically conductive ends of the first and second electrodes. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An electrosurgical system, comprising:
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an energy source comprising an alternating current (AC) waveform generator; a first electrode electrically coupled to the energy source; and a second electrode electrically coupled to the energy source, wherein the first and second electrodes are configured to deliver energy to tissue in electrical contact therewith, wherein the energy source is operative to generate and deliver pulses of a biphasic waveform to the tissue, and wherein the pulses induce a change in voltage potential across cell membranes of a plurality of cells in the tissue, wherein the pulses are configured to induce non-thermal cell death in the plurality of cells while causing no or minimal contraction in muscular tissue during treatment of the tissue in the electrical contact therewith, and wherein the biphasic waveform is delivered to the plurality of cells at a radio frequency (RF). - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification