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AssigneeAMX Technologies, LLC
InventorsPaul Sorajja, Eric N. Rudie, Daniel P. Coyle, David M. Costello
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The present invention discloses an RF electrosurgical system featuring an RF electrosurgical generator with a user interface and outlets delivering RF energy to an RF cutting instrument. The RF electrosurgical generator is equipped with software designed to measure impedance values while delivering voltage pulses to the cutting instrument. In the event that the measured impedance value surpasses a predetermined impedance threshold, the software is programmed to adjust the voltage amplitude of each voltage pulse, either partially or fully reducing it. This innovative system ensures optimal performance and safety during electrosurgical procedures by dynamically adapting voltage output based on real-time impedance measurements.
1-23. (canceled)
An RF electrosurgical system, comprising:
The RF electrosurgical system of claim 1, wherein the impedance threshold is associated with creation of a cavitation spark.
The RF electrosurgical system of claim 1, wherein the impedance threshold is within an inclusive range of about 500 Ohms to about 2,000 Ohms.
The RF electrosurgical system of claim 1, wherein the impedance threshold is a predetermined threshold value or a percentage impedance increase.
The RF electrosurgical system of claim 1, wherein the impedance threshold is looked up in a database stored in memory of the RF electrosurgical generator based on a cutting instrument model number, serial number, or identification indicia.
The RF electrosurgical system of claim 1, wherein the software is further configured to partially or fully reduce a voltage amplitude of each of the plurality of voltage pulses when a predetermined voltage amplitude threshold of one of the pulses of the plurality of pulses is exceeded and/or if a predetermined pulse time threshold of one of the pulses of the plurality of pulses is exceeded.
The RF electrosurgical system of claim 1, wherein time intervals between the plurality of pulses are non-uniform.
The RF electrosurgical system of claim 1, wherein the plurality of voltage pulses is arranged in bursts separated by relaxation periods.
The RF electrosurgical system of claim 1, wherein the RF energy alternates at about 100 kHz or higher.
The RF electrosurgical system of claim 1, wherein the RF energy alternates at 410, 420, 430, 440, 450, 460, 470, 480, 490, or 500 KHz.
The RF electrosurgical system of claim 1, wherein the RF energy is produced with a duty cycle of about 1% to about 20%.
The RF electrosurgical system of claim 1, wherein the RF electrosurgical generator prevents the plurality of voltage pulses from occurring at one or more of atrial diastole, atrial systole, ventricular diastole, and/or ventricular systole.
The RF electrosurgical system of claim 1, wherein the software is configured to monitor ECG data and limit the RF energy to only some, but not all, portions of a cardiac cycle of a patient.
The RF electrosurgical system of claim 1, wherein the software displays a user interface configured to select which portions of a patient's cardiac cycle receives the RF energy.
The RF electrosurgical system of claim 1, wherein the software is configured to measure impedance from the cutting instrument, compare it to a tissue contact impedance threshold, and alert a user to tissue contact when the tissue contact impedance threshold is exceeded.
The RF electrosurgical system of claim 1, wherein the software is configured to measure impedance from the cutting instrument, compare it to a device contact impedance threshold, and alert a user to tissue contact when the device contact impedance threshold is exceeded.
The RF electrosurgical system of claim 1, wherein the software is configured to measure a time of use of the cutting instrument.
Dependencies are inferred from the claim text.