Methods and systems for employing a duty cycle in electrical stimulation of patient tissue

• US 9,643,010 B2
• Filed: 12/16/2014
• Issued: 05/09/2017
• Est. Priority Date: 12/19/2013
• Status: Active Grant

• Current Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Inventors: Ranu, Emarit A. S.
• Primary Examiner(s): DIETRICH, JOSEPH M
• Application Number:
  US14/572,606
• Publication Number:
  US 20150174411A1
• Time in Patent Office: 875 Days
• CPC Class Codes: A61N 1/025 Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors
• CPC Class Codes: A61N 1/0553 Paddle shaped electrodes, e.g. for laminotomy
• CPC Class Codes: A61N 1/3615 Intensity
• CPC Class Codes: A61N 1/36175 Pulse width or duty cycle

Abstract

A method of delivering electrical stimulation energy includes receiving stimulation parameters such as a selection of one or more electrodes, a stimulation amplitude, and a stimulation frequency. The stimulation parameters define, at least in part, an electrical stimulation energy deliverable as a series of electrical pulses at the stimulation frequency. The method also includes receiving a duty cycle parameter that indicates a relative number of the electrical pulses to be suppressed; and delivering the electrical stimulation energy to patient tissue through the stimulation lead. A percentage of the electrical pulses are suppressed according to the duty cycle parameter. Optionally, a distribution parameter is received that indicates how suppressed electrical pulses are to be distributed among the electrical pulses. Optionally, a suppression level parameter is received that indicates a reduction of the stimulation amplitude for each electrical pulse that is to be suppressed.

Claims

1. A non-transitory computer-readable storage medium having processor-executable instructions for delivering electrical stimulation energy through at least one electrode of an implantable electrical stimulation system, the processor-executable instructions when installed onto a system enable the system to perform actions, the processor-executable instructions comprising:

receiving a plurality of stimulation parameters comprising a selection of one or more electrodes, a stimulation amplitude, and a stimulation frequency, wherein the stimulation parameters define, at least in part, an electrical stimulation energy deliverable as a series of electrical pulses at the stimulation frequency;

receiving a duty cycle parameter, wherein the duty cycle parameter indicates a ratio of a number of the electrical pulses to be suppressed to a total number of electrical pulses; and

delivering the electrical stimulation energy to patient tissue through the one or more electrodes, wherein a percentage of the electrical pulses are suppressed according to the duty cycle parameter.

2. The non-transitory computer-readable storage medium of claim 1, wherein the duty cycle parameter is a percentage of the electrical pulses to be suppressed.

3. The non-transitory computer-readable storage medium of claim 1, wherein the processor-executable instructions further comprise receiving a distribution parameter, wherein the distribution parameter indicates how suppressed electrical pulses are be distributed among the electrical pulses.

4. The non-transitory computer-readable storage medium of claim 3, wherein the distribution parameter indicates uniform distribution and wherein delivering the electrical stimulation energy comprises delivering the electrical stimulation energy to patient tissue through the electrical stimulation system, wherein some of the electrical pulses are suppressed according to the duty cycle parameter in a uniform pattern.

5. The non-transitory computer-readable storage medium of claim 3, wherein the distribution parameter indicates random distribution and wherein delivering the electrical stimulation energy comprises delivering the electrical stimulation energy to patient tissue through the electrical stimulation system, wherein some of the electrical pulses are suppressed according to the duty cycle parameter in a random pattern.

6. The non-transitory computer-readable storage medium of claim 3, wherein the distribution parameter indicates consecutive distribution and wherein delivering the electrical stimulation energy comprises delivering the electrical stimulation energy to patient tissue through the electrical stimulation system, wherein some of the electrical pulses are suppressed according to the duty cycle parameter in a periodic interval with at least two consecutive electrical pulses suppressed in each period of the periodic interval.

7. The non-transitory computer-readable storage medium of claim 1, wherein the processor-executable instructions further comprise receiving a suppression level parameter, wherein the suppression level parameter indicates a reduction of the stimulation amplitude for each electrical pulse that is to be suppressed according to the duty cycle parameter.

8. The non-transitory computer-readable storage medium of claim 7, wherein the suppression level parameter is a percentage by which the stimulation amplitude is to be reduced for each electrical pulse that is to be suppressed according to the duty cycle parameter.

9. A method of delivering electrical stimulation energy using an implantable electrical stimulation system, the method comprising:

receiving a plurality of stimulation parameters comprising a selection of one or more electrodes, a stimulation amplitude, and a stimulation frequency, wherein the stimulation parameters define, at least in part, an electrical stimulation energy deliverable as a series of electrical pulses at the stimulation frequency;

receiving a duty cycle parameter, wherein the duty cycle parameter indicates a r ratio of a number of the electrical pulses to be suppressed to a total number of electrical pulses; and

delivering the electrical stimulation energy to patient tissue through the one or more electrodes, wherein a percentage of the electrical pulses are suppressed according to the duty cycle parameter.

10. The method of claim 9, further comprising receiving a distribution parameter, wherein the distribution parameter indicates how suppressed electrical pulses are to be distributed among the electrical pulses.

11. The method of claim 10, wherein the distribution parameter indicates uniform distribution and wherein delivering the electrical stimulation energy comprises delivering the electrical stimulation energy to patient tissue through the electrical stimulation system, wherein some of the electrical pulses are suppressed according to the duty cycle parameter in a uniform pattern.

12. The method of claim 10, wherein the distribution parameter indication random distribution and wherein delivering the electrical stimulation energy comprises delivering the electrical stimulation energy to patient tissue through the electrical stimulation system, wherein some of the electrical pulses are suppressed according to the duty cycle parameter in a random pattern.

13. The method of claim 10, wherein the distribution parameter indicates consecutive distribution and wherein delivering the electrical stimulation energy comprises delivering the electrical stimulation energy to patient tissue through the electrical stimulation system, wherein some of the electrical pulses are suppressed according to the duty cycle parameter in a periodic interval with at least two consecutive electrical pulses suppressed in each period of the periodic interval.

14. The method of claim 9, further comprising receiving a suppression level parameter, wherein the suppression level parameter indicates a reduction of the stimulation amplitude for each electrical pulse that is to be suppressed according to the duty cycle parameter.

15. An electrical stimulation system, comprising:

an electrical stimulation lead comprising a plurality of electrodes;

a control module coupleable to the electrical stimulation lead; and

a processor in communication with the control module, the processor for executing processor-readable instructions that enable actions, comprising;

receiving a plurality of stimulation parameters comprising a selection of one or more of the plurality of electrodes of the stimulation lead, a stimulation amplitude, and a stimulation frequency, wherein the stimulation parameters define, at least in part, an electrical stimulation energy deliverable as a series of electrical pulses at the stimulation frequency;

receiving a duty cycle parameter, wherein the duty cycle parameter indicates a ratio of a number of the electrical pulses to be suppressed to a total number of electrical pulses; and

delivering the electrical stimulation energy to patient tissue through the plurality of electrodes of the stimulation lead, wherein a percentage of the electrical pulses are suppressed according to the duty cycle parameter.

16. The electrical stimulation system of claim 15, wherein the actions further comprise receiving a distribution parameter, wherein the distribution parameter indicates how suppressed electrical pulses are be distributed among the electrical pulses.

17. The electrical stimulation system of claim 16, wherein the distribution parameter indicates uniform distribution and wherein delivering the electrical stimulation energy comprises delivering the electrical stimulation energy to patient tissue through the stimulation lead, wherein some of the electrical pulses are suppressed according to the duty cycle parameter in a uniform pattern.

18. The electrical stimulation system of claim 16, wherein the distribution parameter indication random distribution and wherein delivering the electrical stimulation energy comprises delivering the electrical stimulation energy to patient tissue through the stimulation lead, wherein some of the electrical pulses are suppressed according to the duty cycle parameter in a random pattern.

19. The electrical stimulation system of claim 16, wherein the distribution parameter indicates consecutive distribution and wherein delivering the electrical stimulation energy comprises delivering the electrical stimulation energy to patient tissue through the stimulation lead, wherein some of the electrical pulses are suppressed according to the duty cycle parameter in a periodic interval with at least two consecutive electrical pulses suppressed in each period of the periodic interval.

20. The electrical stimulation system of claim 15, wherein the action further comprise receiving a suppression level parameter, wherein the suppression level parameter indicates a reduction of the stimulation amplitude for each electrical pulse that is to be suppressed according to the duty cycle parameter.