Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
First Claim
1. An electrosurgical generator comprising:
- an RF output stage configured to generate at least one sinusoidal waveform suitable for at least one electrosurgical mode, the RF output stage 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 component and a second parallel inductor-capacitor resonant circuit, 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, wherein the first and second switching components are configured in a 180 degree out-of-phase relationship to operate at a predetermined frequency based on a phase-correlated dual drive signal, wherein the RF output stage further includes 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.
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Accused Products
Abstract
An electrosurgical generator is disclosed. The generator includes an RF output stage configured to generate a sinusoidal waveform for a selected electrosurgical mode. The RF output stage includes 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 component and a second parallel inductor-capacitor resonant circuit. The first parallel inductor-capacitor resonant circuit is configured to produce a first half-sinusoidal waveform and the second parallel inductor-capacitor resonant circuit is configured to produce a second half-sinusoidal waveform. The first and second switching components are in a 180 degree out-of-phase relationship and are configured to operate at a predetermined frequency based on a phase-correlated dual drive signal.
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Citations
17 Claims
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1. An electrosurgical generator comprising:
- an RF output stage configured to generate at least one sinusoidal waveform suitable for at least one electrosurgical mode, the RF output stage 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 component and a second parallel inductor-capacitor resonant circuit, 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, wherein the first and second switching components are configured in a 180 degree out-of-phase relationship to operate at a predetermined frequency based on a phase-correlated dual drive signal, wherein the RF output stage further includes 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.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An RF output stage configured to generate at least one sinusoidal waveform for at least one electrosurgical mode, the RF output stage comprising:
- a first connection including a first switching component and a first parallel inductor-capacitor resonant circuit configured to produce a first half-sinusoidal waveform;
a second connection including a second switching component and a second parallel inductor-capacitor resonant circuit configured to produce a second half-sinusoidal waveform, wherein the first and second switching components are in a 180 degree out-of-phase relationship and are configured to operate at a predetermined frequency based on a phase-correlated dual drive signal; and
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. - View Dependent Claims (15, 16, 17)
- a first connection including a first switching component and a first parallel inductor-capacitor resonant circuit configured to produce a first half-sinusoidal waveform;
Specification