Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
First Claim
1. An electrosurgical generator comprising:
- a selection module configured to transmit control signals which adjusts the electrosurgical generator to produce sinusoidal waveforms suitable for the at least one electrosurgical mode;
an RF output stage which generates sinusoidal waveforms for at least one electrosurgical mode, the RF output stage connected to a DC power supply including first and second connections, the first connection including a first switching component and a first parallel inductor-capacitor resonant circuit and the second connection including a second switching components and a second parallel inductor-capacitor resonant circuit, the first and second switching components being configured to open and close at a predetermined frequency based on a phase-correlated dual drive signal emitted by a driver and are in a 180 degree out-of-phase relationship, the first parallel inductor-capacitor resonant circuit being configured to produce a first half-sinusoidal waveform and the second parallel inductor-capacitor resonant circuit being configured to produce a second half-sinusoidal waveform, the RF output stage including;
a transformer having a primary winding and a secondary winding and a series inductor-capacitor resonant circuit, the series inductor-capacitor resonant circuit and the transformer configured to generate a sinusoidal waveform;
a switching module which, in response to the control signals, adjusts the first and second half-sinusoidal waveforms thereby producing the sinusoidal waveforms suitable for the at least one electrosurgical mode.
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Accused Products
Abstract
An electrosurgical generator is disclosed, which includes an RF output stage connected to a DC power supply and first and second connections. The first connection includes a first switching component and a first parallel inductor-capacitor resonant circuit. The second connection includes a second switching components and a second parallel inductor-capacitor resonant circuit. The first and second switching components are configured to open and close at a predetermined frequency based on a phase-correlated dual drive signal emitted by a driver and are in a 180 degree out-of-phase relationship. The first parallel inductor-capacitor resonant circuit is further configured to produce a first half-sinusoidal waveform and the second parallel inductor-capacitor resonant circuit is configured to produce a second half-sin half-sinusoidal waveform. The RF output stage further includes a transformer having a primary winding and a secondary winding and a series inductor-capacitor resonant circuit, which are configured to generate a sinusoidal waveform.
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Citations
14 Claims
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1. An electrosurgical generator comprising:
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a selection module configured to transmit control signals which adjusts the electrosurgical generator to produce sinusoidal waveforms suitable for the at least one electrosurgical mode; an RF output stage which generates sinusoidal waveforms for at least one electrosurgical mode, the RF output stage connected to a DC power supply including first and second connections, the first connection including a first switching component and a first parallel inductor-capacitor resonant circuit and the second connection including a second switching components and a second parallel inductor-capacitor resonant circuit, the first and second switching components being configured to open and close at a predetermined frequency based on a phase-correlated dual drive signal emitted by a driver and are in a 180 degree out-of-phase relationship, the first parallel inductor-capacitor resonant circuit being configured to produce a first half-sinusoidal waveform and the second parallel inductor-capacitor resonant circuit being configured to produce a second half-sinusoidal waveform, the RF output stage including; a transformer having a primary winding and a secondary winding and a series inductor-capacitor resonant circuit, the series inductor-capacitor resonant circuit and the transformer configured to generate a sinusoidal waveform; a switching module which, in response to the control signals, adjusts the first and second half-sinusoidal waveforms thereby producing the sinusoidal waveforms suitable for the at least one electrosurgical mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification