PROGRAMMING TECHNIQUES FOR STIMULATION WITH UTILIZATION OF CASE ELECTRODE

• US 20110093043A1
• Filed: 01/29/2010
• Published: 04/21/2011
• Est. Priority Date: 10/21/2009
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Goetz, Steven M., Torgerson, Nathan A.
• Granted Patent: US 8,571,677 B2
• Time in Patent Office: Days
• US Class Current: 607/59
• CPC Class Codes: A61N 1/0531 Brain cortex electrodes
• CPC Class Codes: A61N 1/0534 Electrodes for deep brain stimulation
• CPC Class Codes: A61N 1/0551 Spinal or peripheral nerve electrodes
• CPC Class Codes: A61N 1/0553 Paddle shaped electrodes, e.g. for laminotomy
• CPC Class Codes: A61N 1/37247 User interfaces, e.g. input or presentation means

Abstract

This disclosure describes techniques that support delivering electrical stimulation via an electrode on a housing of an implantable medical device (IMD) while substantially simultaneously delivering electrical stimulation via one or more electrodes, having the same polarity as the electrode on the housing, on one or more leads engaged to the IMD. The stimulation may be constant current-based or constant voltage-based stimulation in the form of pulses or continuous waveforms. Delivery of stimulation via both a housing anode and one or more lead anodes, for example, may allow a user to control current paths between the housing electrode and the lead electrode(s) in a relative manner to achieve different electric or stimulation field shapes.

Claims

1. A method comprising:

receiving, via a user interface of an electrical stimulator programmer device, user input specifying an electrode combination for delivery of electrical stimulation from an implantable electrical stimulator to a patient, the electrode combination comprising at least a first electrode carried by a housing of the electrical stimulator, and a second electrode and a third electrode carried by one or more implantable leads coupled to the housing;

receiving, via the user interface, user input specifying amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode; and

defining a program to control delivery of the electrical stimulation by the stimulator based on the user input.

2. The method of claim 1, wherein the first electrode is an anode, the second electrode is an anode, and the third electrode is a cathode.

3. The method of claim 1, wherein the at least one lead comprises a first lead and a second lead, and wherein the second electrode is carried by the first lead and the third electrode is carried by the second lead.

4. The method of claim 1, wherein specifying amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode comprises:

specifying a balance of current between the first electrode, the second electrode, and the third electrode.

5. The method of claim 4, wherein the balance comprises an indication of weights assigned to the first electrode, the second electrode, and the third electrode.

6. The method of claim 5, wherein the weights are assigned to the first electrode, the second electrode, and the third electrode by adjusting a slidable medium within a range.

7. The method of claim 1, wherein receiving, via a user interface of an electrical stimulator programmer device, user input specifying an electrode combination for delivery of electrical stimulation from an electrical stimulator to a patient comprises:

using a pointing media to select electrodes of the electrode combination.

8. The method of claim 1, wherein receiving, via a user interface of an electrical stimulator programmer device, user input specifying an electrode combination for delivery of electrical stimulation from an electrical stimulator to a patient comprises:

receiving user input that drags a stimulation field relative to the at least one lead.

9. The method of claim 8, further comprising:

receiving user input that drags a shield zone relative to the at least one lead.

10. The method of claim 1, wherein the program is a first program, and wherein a first sum of the amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode equals zero, the method further comprising:

receiving, via the user interface, user input specifying an adjustment to at least one of the first, second, and third electrodes;

automatically determining, for each of the first, second, and third electrodes not adjusted by user input, an amount of electrical stimulation current such that a second sum of the electrical stimulation currents to be supplied by each of the first, second, and third electrodes equals zero; and

defining a second program to control delivery of the electrical stimulation by the stimulator based on the automatically determined amounts of electrical stimulation currents.

11. The method of claim 1, wherein the first electrode is a cathode, the second electrode is an cathode, and the third electrode is an anode.

12. A programmer for an implantable electrical stimulator comprising:

a user interface that;

receives user input specifying an electrode combination for delivery of electrical stimulation from an electrical stimulator to a patient, the electrode combination comprising at least a first electrode carried by a housing of the electrical stimulator, and a second electrode and a third electrode carried by at least one implantable lead coupled to the housing; and

receives user input specifying amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode; and

a processor that defines a program to control delivery of the electrical stimulation by the stimulator based on the user input.

13. The programmer of claim 12, wherein the first electrode is an anode, the second electrode is an anode, and the third electrode is a cathode.

14. The programmer of claim 12, wherein the at least one lead comprises a first lead and a second lead, and wherein the second electrode is carried by the first lead and the third electrode is carried by the second lead.

15. The programmer of claim 12, wherein specifying amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode comprises:

specifying a balance of current between the first electrode, the second electrode, and the third electrode.

16. The programmer of claim 15, wherein the balance comprises an indication of weights assigned to the first electrode, the second electrode, and the third electrode.

17. The programmer of claim 16, wherein the weights are assigned to the first electrode, the second electrode, and the third electrode by adjusting a slidable medium within a range.

18. The programmer of claim 12, wherein receiving user input specifying an electrode combination for delivery of electrical stimulation from an electrical stimulator to a patient comprises:

using a pointing media to select electrodes of the electrode combination.

19. The programmer of claim 12, wherein receiving user input specifying an electrode combination for delivery of electrical stimulation from an electrical stimulator to a patient comprises:

receiving user input that drags a stimulation field relative to the at least one lead.

20. The programmer of claim 19, wherein the user interface:

receives user input that drags a shield zone relative to the at least one lead.

21. The programmer of claim 12, wherein the program is a first program, wherein a first sum of the amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode equals zero, wherein the user interface receives user input specifying an adjustment to at least one of the first, second, and third electrodes, and wherein the processor:

automatically determines, for each of the first, second, and third electrodes not adjusted by user input, an amount of electrical stimulation current such that a second sum of the electrical stimulation currents to be supplied by each of the first, second, and third electrodes equals zero; and

defines a second program to control delivery of the electrical stimulation by the stimulator based on the automatically determined amounts of electrical stimulation currents.

22. The programmer of claim 12, wherein the first electrode is a cathode, the second electrode is a cathode, and the third electrode is an anode.

23. A computer-readable storage medium comprising instructions that cause a processor to:

receive, via a user interface of an electrical stimulator programmer device, user input specifying an electrode combination for delivery of electrical stimulation from an electrical stimulator to a patient, the electrode combination comprising at least a first electrode carried by a housing of the electrical stimulator, and a second electrode and a third electrode carried by at least one implantable lead coupled to the housing;

receive, via the user interface, user input specifying amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode; and

define a program to control delivery of the electrical stimulation by the stimulator based on the user input.

24. The computer-readable storage medium of claim 23, wherein the first electrode is an anode, the second electrode is an anode, and the third electrode is a cathode.

25. The computer-readable storage medium of claim 23, wherein the at least one lead comprises a first lead and a second lead, and wherein the second electrode is carried by the first lead and the third electrode is carried by the second lead.

26. The computer-readable storage medium of claim 23, wherein the instructions that cause the processor to receive user input specifying amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode further comprise instructions that cause the processor to:

receive user input specifying a balance of current between the first electrode, the second electrode, and the third electrode.

27. The computer-readable storage medium of claim 26, wherein the balance comprises an indication of weights assigned to the first electrode, the second electrode, and the third electrode.

28. The computer-readable storage medium of claim 27, wherein the weights are assigned to the first electrode, the second electrode, and the third electrode by adjusting a slidable medium within a range.

29. The computer-readable storage medium of claim 23, wherein the instructions that cause the processor to receive user input specifying an electrode combination for delivery of electrical stimulation from an electrical stimulator to a patient further comprise instructions that cause the processor to:

receive user input selecting electrodes of the electrode combination using a pointing media.

30. The computer-readable storage medium of claim 23, wherein the instructions that cause the processor to receive user input specifying an electrode combination for delivery of electrical stimulation from an electrical stimulator to a patient further comprise instructions that cause the processor to:

receive user input that drags a stimulation field relative to the at least one lead.

31. The computer-readable storage medium of claim 23, further comprising instructions that cause the processor to:

receive user input that drags a shield zone relative to the at least one lead.

32. The computer-readable storage medium of claim 23, wherein the program is a first program, wherein a first sum of the amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode equals zero, wherein the user interface receives user input specifying an adjustment to at least one of the first, second, and third electrodes, the computer-readable storage medium further comprising instructions to cause the processor to:

automatically determine, for each of the first, second, and third electrodes not adjusted by user input, an amount of electrical stimulation current such that a second sum of the electrical stimulation currents to be supplied by each of the first, second, and third electrodes equals zero; and

define a second program to control delivery of the electrical stimulation by the stimulator based on the automatically determined amounts of electrical stimulation currents.

33. The computer-readable storage medium of claim 23, wherein the first electrode is a cathode, the second electrode is a cathode, and the third electrode is an anode.

34. A device comprising:

means for receiving, via a user interface of an electrical stimulator programmer device, user input specifying an electrode combination for delivery of electrical stimulation from an implantable electrical stimulator to a patient, the electrode combination comprising at least a first electrode carried by a housing of the electrical stimulator, and a second electrode and a third electrode carried by one or more implantable leads coupled to the housing;

means for receiving, via the user interface, user input specifying amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode; and

means for defining a program to control delivery of the electrical stimulation by the stimulator based on the user input.

35. A system comprising:

an implantable electrical stimulator; and

a programmer comprising;

a user interface that;

receives user input specifying an electrode combination for delivery of electrical stimulation from an electrical stimulator to a patient, the electrode combination comprising at least a first electrode carried by a housing of the electrical stimulator, and a second electrode and a third electrode carried by at least one implantable lead coupled to the housing; and

receives user input specifying amounts of electrical stimulation current to be supplied via the first electrode, the second electrode, and the third electrode; and

a processor that defines a program to control delivery of the electrical stimulation by the stimulator based on the user input.