Method and system for treating pain during an electrosurgical procedure

• US 20070066971A1
• Filed: 09/21/2005
• Published: 03/22/2007
• Est. Priority Date: 09/21/2005
• Status: Abandoned Application

• Current Assignee: Sherwood Services AG
• Original Assignee: Sherwood Services AG
• Inventors: Podhajsky, Ronald
• Application Number:
  US11/232,171
• Publication Number:
  US 20070066971A1
• Time in Patent Office: Days
• US Class Current: 606/34
• CPC Class Codes: A61B 18/1206 Generators therefor
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 2018/00434 Neural system
• CPC Class Codes: A61N 1/36021 for treatment of pain

Abstract

A system controls an electrosurgical generator that outputs electrosurgical energy. The system includes at least one processor; a procedure control module executable on the at least one processor for controlling the generator to output electrosurgical energy which is optimized for performing an electrosurgical procedure. The system further includes a pain modulation control module executable on the at least one processor for controlling the generator to output electrosurgical energy which is optimized for administering pain modulation treatment in conjunction with performing the electrosurgical procedure.

Claims

1. A control system for controlling an electrosurgical generator outputting electrosurgical energy comprising:

at least one processor;

a procedure control module executable on the at least one processor for controlling the generator to output electrosurgical energy which is optimized for performing an electrosurgical procedure; and

a pain modulation control module executable on the at least one processor for controlling the generator to output electrosurgical energy, said pain modulation control module being optimized for administering a pain modulation treatment in conjunction with performing the electrosurgical procedure, wherein said pain modulation control treatment is suitable to modulate said output for stimulating a tissue for reducing an amount of a pain mechanism.

2. The control system according to claim 1, wherein the pain modulation control module controls the generator to impose a duty cycle on the electrosurgical energy for establishing a pulse train associated with effective energy of the output electrosurgical energy.

3. The control system according to claim 1, wherein the at least one processor operates in a mode selectable from each of an electrosurgical mode in which the generator is controlled by the procedure control module;

a pain modulation mode in which the generator is controlled by the pain modulation control module; and

a combination mode, in which the generator is controlled by both the procedure control module and the pain modulation control module.

4. The control system according to claim 1, wherein control of the generator by the pain modulation control module in conjunction with performance of the electrosurgical procedure includes controlling the generator to output electrosurgical energy optimized for administration of pain modulation treatment at least one of before administration of the electrosurgical energy for performing the electrosurgical procedure, during administration of the electrosurgical energy for performing the electrosurgical procedure and after administration of the electrosurgical energy for performing the electrosurgical procedure.

5. The control system according to claim 4,

wherein controlling the generator includes adjusting parameter settings of the generator;

and

wherein controlling the generator to output electrosurgical energy optimized for administering pain modulation treatment during administration of the electrosurgical energy for performing the electrosurgical procedure includes at least one of;

controlling the generator by the pain modulation control module to output electrosurgical energy which is optimized for administering pain modulation treatment intermittently with controlling the generator by the procedure control module to output electrosurgical energy which is optimized for administration during performance of an electrosurgical procedure; and

controlling the generator by the pain modulation control module and the procedure control module substantially simultaneously including adjusting the generator'"'"'s parameter settings in accordance with at least one function for combining adjusting parameter settings of the generator to output electrosurgical energy which is optimized for administration during performance of an electrosurgical procedure with adjusting parameter settings of the generator to output electrosurgical energy which is optimized for administering pain modulation treatment.

6. The control system according to claim 1, wherein:

controlling the generator includes adjusting parameter settings of the generator;

the at least one processor receives input data for at least one of selecting the mode, entering pre-surgical data, entering observation data, and selecting parameter settings of the generator; and

at least a portion of the input data is used to determine adjustments to parameter settings of the generator.

7. The control system according to claim 1, further comprising a sensor module having at least one sensor sensing properties at or proximate to the surgical site or a site related to the surgical site and generating corresponding sensing signals, wherein the pain modulation control module controls the generator in accordance with at least a portion of the sensing signals.

8. The control system according to claim 1, wherein the pain modulation treatment is administered to treat a site remote from a surgical site to which the electrosurgical energy is administered during performance of the electrosurgical procedure.

9. The control system according to claim 1, wherein the administration of pain modulation treatment includes treatment of anticipated secondary pain.

10. The control system according to claim 1, wherein controlling the generator includes adjusting parameter settings of the generator for adjusting parameters of the output electrosurgical energy, wherein parameters of the output electrosurgical energy include at least one of pulse frequency, carrier frequency, waveform shape, pulse width, duty cycle, crest factor, amplitude, amplitude modulation, a treatment overlay, and frequency modulation.

11. The control system according to claim 1, wherein the electrosurgical procedure is an ablation procedure.

12. The control system according to claim 3, wherein the pain modulation mode further includes a selectable stimulation mode having at least one of sensory and motor functions for determining proximity to a nerve or nerve bundle.

13. A method for controlling an electrosurgical generator outputting electrosurgical energy, the method comprising the steps of:

(a) controlling the generator to output electrosurgical energy which is optimized for performing an electrosurgical procedure; and

(b) controlling the generator to output electrosurgical energy which is optimized for administering pain modulation treatment in conjunction with performing the electrosurgical procedure.

14. The method according to claim 13, wherein step (b) includes controlling the generator for imposing a duty cycle on the electrosurgical energy for establishing a pulse train associated with effective energy of the output electrosurgical energy.

15. The method according to claim 13, wherein step (b) includes controlling the generator to output electrosurgical energy optimized for administration of pain modulation treatment at least one of before administration of the electrosurgical energy for performing the electrosurgical procedure, during administration of the electrosurgical energy for performing the electrosurgical procedure and after administration of the electrosurgical energy for performing the electrosurgical procedure.

16. The method according to claim 15, wherein:

controlling the generator includes adjusting parameter settings of the generator; and

controlling the generator to output electrosurgical energy optimized for administering pain modulation treatment during administration of electrosurgical energy for performing the electrosurgical procedure includes at least one of;

controlling the generator to output electrosurgical energy which is optimized for administering pain modulation treatment intermittently with controlling the generator to output electrosurgical energy which is optimized for administration during performance of an electrosurgical procedure; and

controlling the generator to output electrosurgical energy optimized for both administration of pain modulation treatment and performance of the electrosurgical procedure substantially simultaneously, including adjusting the generator'"'"'s parameter settings in accordance with at least one function for combining adjusting parameter settings of the generator to output electrosurgical energy which is optimized for administration during performance of an electrosurgical procedure and adjusting parameter settings of the generator to output electrosurgical energy which is optimized for administering pain modulation treatment.

17. The method according to claim 13, wherein controlling the generator step includes

adjusting parameter settings of the generator;

receiving input data for at least one of entering pre-surgical data, entering observation data, and selecting parameter settings of the generator; and

adjusting parameter settings of the generator using at least a portion of the input data for determining the adjusting.

18. The method according to claim 13, the method further comprising the steps of:

receiving sensing signals corresponding to sensing of properties at or proximate to the surgical site or a site related to the surgical site;

wherein the controlling the generator to output electrosurgical energy optimized for administration of pain modulation treatment is performed in accordance with at least a portion of the sensing signals.

19. The method according to claim 13, wherein the administration of pain modulation treatment includes treatment of anticipated secondary pain.

20. The method according to claim 13, wherein controlling the generator includes adjusting parameter settings of the generator for adjusting parameters of the output electrosurgical energy, wherein parameters of the output electrosurgical energy include at least one of pulse frequency, repetition rate, waveform shape, pulse width, duty cycle, crest factor, and amplitude.

21. The method according to claim 13, wherein the electrosurgical procedure is an ablation procedure, step (a) is performed until an area associated with the surgical site is ablated so that it no longer has vascularity, after which step (b) is performed at the surgical site, wherein due to the lack of vascularity of the area, heat caused by administration of the electrosurgical energy during step (a) is spread effectively to an area having vascularity which is peripheral to the area lacking vascularity for providing pain modulation treatment to nerves located at the peripheral area having vascularity.

22. A method for controlling an electrosurgical generator outputting electrosurgical energy, the method comprising the step of controlling the generator to output electrosurgical energy for performing an electrosurgical procedure at a surgical site including imposing a duty cycle on the electrosurgical energy for optimizing the output electrosurgical energy for administration of pain modulation treatment including alteration of neural tissue at a location in and around the surgical site.

23. A control system for controlling a radio-frequency (RF) generator outputting RF energy comprising:

at least one processor;

a procedure control module executable on the at least one processor for controlling the generator to output electrosurgical energy which is optimized for performing an electrosurgical procedure; and

a pain modulation control module executable on the at least one processor for controlling the generator to output electrosurgical energy which is optimized for administering pain modulation treatment in conjunction with performing the electrosurgical procedure.

24. A control system as in claim 23, further comprising a secondary pain mediation, said second pain mediation being selected from the group consisting of laser, cryogenic, microwave, high intensity ultrasound and ultrasound.

25. An electrosurgical system having a plurality of functions comprising:

a first function for increasing a tissue temperature to a temperature above body temperature to alter a function of a neural tissue; and

a second function for stimulating a neural tissue, said second function for reducing an amount of pain being selected from the group consisting of a nociceptive pain, a neuropathic pain, and any combination thereof, wherein, said first function, and said second function are disposed on an integral electrosurgical unit.