Dual-mode electrosurgical instrument
First Claim
1. An electrosurgical instrument for selectively providing RF power to operate as main modes both a monopolar handpiece and a bipolar handpiece each in multiple sub-modes including CUT, and HEMO sub-modes, comprising:
- (a) a console unit,(b) RF power generating circuitry inside the console and capable of generating electrosurgical currents at a given carrier frequency in the MHz range,(c) first electrical connectors at the console for receiving a monopolar handpiece,(d) second electrical connectors at the console for receiving a bipolar handpiece,e) circuit means for generating first and second different modulation waveforms representing, respectively, the CUT, and HEMO sub-modes,f) first means for delivering the first waveform representing the CUT sub-mode to the RF power generating circuitry for modulating the given carrier frequency to produce CUT sub-mode electrosurgical currents,g) second means for delivering the second waveform representing the HEMO sub-mode to the RF power generating circuitry for modulating the given carrier frequency to produce HEMO sub-mode electrosurgical currents,h) third means for supplying both the CUT and HEMO sub-mode electrosurgical currents to the first electrical connectors,i) fourth means for supplying both the CUT and HEMO electrosurgical currents to the second electrical connectors,j) whereby both a monopolar handpiece and a bipolar handpiece can be operated at the given frequency in both the CUT and HEMO sub-modes.
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Accused Products
Abstract
An electrosurgical instrument that is capable of generating high-quality RF energy at a single frequency in the MHz range best suited for delicate, precise and quick-healing cutting procedures with low leakage currents using a monopolar handpiece, and also provides high-quality RF energy at the same frequency suited for use for carrying out similar procedures for use with a bipolar handpiece. In a preferred embodiment, the instrument is capable of generating sub-modes of electrosurgical currents with different waveforms optimized for cutting and hemostasis, and the various sub-modes are available for both the monopolar and bipolar handpieces. A preferred operating frequency is in the range of 4 MHz. The instrument includes means for maintaining a substantially constant power output irrespective of selection of one of the sub-modes.
207 Citations
17 Claims
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1. An electrosurgical instrument for selectively providing RF power to operate as main modes both a monopolar handpiece and a bipolar handpiece each in multiple sub-modes including CUT, and HEMO sub-modes, comprising:
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(a) a console unit, (b) RF power generating circuitry inside the console and capable of generating electrosurgical currents at a given carrier frequency in the MHz range, (c) first electrical connectors at the console for receiving a monopolar handpiece, (d) second electrical connectors at the console for receiving a bipolar handpiece, e) circuit means for generating first and second different modulation waveforms representing, respectively, the CUT, and HEMO sub-modes, f) first means for delivering the first waveform representing the CUT sub-mode to the RF power generating circuitry for modulating the given carrier frequency to produce CUT sub-mode electrosurgical currents, g) second means for delivering the second waveform representing the HEMO sub-mode to the RF power generating circuitry for modulating the given carrier frequency to produce HEMO sub-mode electrosurgical currents, h) third means for supplying both the CUT and HEMO sub-mode electrosurgical currents to the first electrical connectors, i) fourth means for supplying both the CUT and HEMO electrosurgical currents to the second electrical connectors, j) whereby both a monopolar handpiece and a bipolar handpiece can be operated at the given frequency in both the CUT and HEMO sub-modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An electrosurgical instrument for selectively providing RF power to operate as main modes both a monopolar handpiece and a bipolar handpiece each in multiple sub-modes including first, second, and third different CUT, CUT/COAG, and HEMO sub-modes, comprising:
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(a) a console unit, (b) RF power generating circuitry inside the console and capable of generating electrosurgical currents at a given frequency in the 4 MHz range, (c) first means for generating modulated waveforms representative of the different multiple sub-modes and supplying the modulated waveforms to the RF power generating circuitry, the selection of a sub-mode having a tendency to vary the output power from the RF power generating circuitry, (d) first electrical connectors at the console for receiving a monopolar handpiece, (e) second electrical connectors at the console for receiving a bipolar handpiece, (f) second means for controlling the output power of the electrosurgical currents to a maximum level and for supplying the controlled electrosurgical currents at the given frequency in any of the first, second, or third sub-modes to the first electrical connectors for operating in the main monopolar mode, (g) third means for controlling the output power of the electrosurgical currents to substantially the same maximum level and for supplying the controlled electrosurgical currents at the given frequency in any of the first, second, or third sub-modes to the second electrical connectors for operating in the main bipolar mode, (h) the second and third means functioning independently in response to selecting the main mode, the first, second, or third sub-mode, and the output power, (i) whereby all three sub-modes are capable of being supplied to both the monopolar and bipolar handpieces when carrying out their respective procedures. - View Dependent Claims (13, 14)
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15. A method for treating patients with electrosurgical currents from a unitary electrosurgical instrument for selectively providing RF power to operate a monopolar handpiece and a bipolar handpiece each in three separate sub-modes, comprising the steps:
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(a) operating the electrosurgical instrument to generate electrosurgical currents in any one of the sub-modes at a single frequency in the 4 MHz range in a procedure for modulating tissue of the patient using a monopolar handpiece, (b) operating the electrosurgical instrument to generate electrosurgical currents in any one of the same three sub-modes at the same frequency in the 4 MHz range in a procedure for modulating tissue of the patient using a bipolar handpiece. - View Dependent Claims (16, 17)
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Specification