Electrosurgical generator for providing two-way synchronous power delivery and method thereof

Abstract

An electrosurgical generator and a method thereof are provided for providing synchronized power delivery to a patient via two accessories during an electrosurgical procedure or treatment. The electrosurgical generator includes a first power generator including a first power source and a first radio frequency (RF) output stage; a second power generator including a second power source and a second radio frequency (RF) output stage; and a controller for determining whether the carrier frequency and the fixed modulation frequency of each of the first power generator and the second power generator are compatible, and enabling output from each of the first power generator and the second power generator to the respective applicator simultaneously if the carrier frequency and the fixed modulation frequency are compatible.

Claims

1. An electrosurgical generator, include: a first power generator including a first power supply and a first radio frequency (RF) output stage; a second power generator including a second power supply and a second radio frequency (RF) output stage; as well as A controller determines whether a carrier frequency and a fixed modulation frequency of each of a first power generator and a second power generator are compatible, and enables simultaneous output from each of the first power generator and the second power generator to a corresponding applicator if the carrier frequency and the fixed modulation frequency are compatible.

2. The electrosurgical generator of claim 1 , wherein the controller synchronizes the outputs from the first power generator and the second power generator to start at the same time and with the same phase.

3. The electrosurgical generator according to claim 1, further comprising: include: at least one first sensor that senses at least one first parameter of an output from the first RF output stage; as well as At least one second sensor senses at least one second parameter of the output from the second RF output stage.

4. The electrosurgical generator of claim 3, wherein the at least one first sensor and the at least one second sensor are at least one of a voltage sensor and / or a current sensor.

5. The electrosurgical generator of claim 3 , wherein the controller determines the power delivered by the first power generator based on the at least one first parameter and determines the power delivered by the second power generator based on the at least one second parameter, and if the power delivered by the first power generator or the second power generator exceeds a respective predetermined value, the controller reduces the output power on the first power generator or the second power generator having the highest output power setting until the delivered power of both the first power generator and the second power generator is below the respective predetermined value.

6. The electrosurgical generator of Claim 1, further comprising at least one third sensor that senses at least one third parameter associated with the return electrode.

7. An electrosurgical generator according to claim 6, wherein the controller determines the current through the return electrode based on the at least one third parameter, and if the determined current exceeds a predetermined value, the controller terminates the delivery of power by the first power generator and the second power generator.

8. An electrosurgical generator according to claim 7, wherein if the determined current exceeds the predetermined value, the controller generates an alarm to use a second return electrode.

9. The electrosurgical generator of claim 6, wherein the controller determines a heating coefficient of the return electrode based on the at least one third parameter, and if the determined heating coefficient exceeds a predetermined value, the controller terminates power delivery by the first power generator and the second power generator.

10. The electrosurgical generator of claim 9, wherein the controller determines the heating coefficient by using a moving integral filter algorithm over a predetermined period of time.

11. The electrosurgical generator of claim 6, wherein the controller determines a first leakage current of the first power generator based on the at least one first parameter and the at least one third parameter, determines a second leakage current of the second power generator based on the at least one second parameter and the at least one third parameter, and if the total leakage current of the first power generator and the second power generator exceeds a predetermined value, reduces the output of the first power generator and the second power generator until the total leakage current of the first power generator and the second power generator is below the predetermined value.

12. The electrosurgical generator of claim 6 , wherein the controller determines a first leakage current of the first power generator based on the at least one first parameter and the at least one third parameter, determines a second leakage current of the second power generator based on the at least one second parameter and the at least one third parameter, and if the total leakage current of the first power generator and the second power generator exceeds a predetermined value, reduces the output of the first power generator or the second power generator until the total leakage current of the first power generator and the second power generator is below the predetermined value.

13. The electrosurgical generator of claim 6 , wherein the controller determines a first leakage current of the first power generator based on the at least one first parameter and the at least one third parameter, determines a second leakage current of the second power generator based on the at least one second parameter and the at least one third parameter, and if the respective leakage currents of the first power generator and the second power generator exceed a predetermined value, reduces the output of the respective power generator until the respective leakage is below the predetermined value.

14. The electrosurgical generator of claim 1, further comprising an input / output interface that enables selection of an operating mode of a corresponding applicator coupled to the electrosurgical generator.

15. The electrosurgical generator of claim 14, wherein the controller determines whether the carrier frequency and the fixed modulation frequency of each of the first power generator and the second power generator are compatible by retrieving settings associated with each operating mode selected.

16. The electrosurgical generator of claim 14, wherein the controller determines a total power to be delivered based on the two selected operating modes, and if the total power exceeds a predetermined value, the controller terminates the delivery of power by the first power generator and the second power generator.

17. The electrosurgical generator of claim 1, further comprising at least two sockets that receive connectors of respective applicators, each socket coupled to one of the first power generator and the second power generator.

18. The electrosurgical generator of claim 17, further comprising an input / output interface that enables selection of an operating mode of a respective applicator coupled to the electrosurgical generator, wherein the input / output interface provides an indication of a suitable socket for each of the respective applicators.

19. An electrosurgical generator as recited in claim 1, wherein the respective applicators include a first monopolar applicator and a second monopolar applicator.

20. An electrosurgical generator as recited in claim 1, wherein the respective applicators include a monopolar applicator and a bipolar applicator.

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