User interface with 3D environment for configuring stimulation therapy
The disclosure describes a method and system that allows a user to configure electrical stimulation therapy by defining a three-dimensional (3D) stimulation field. After a stimulation lead is implanted in a patient, a clinician manipulates the 3D stimulation field in a 3D environment to encompass desired anatomical regions of the patient. In this manner, the clinician determines which anatomical regions to stimulate, and the system generates the necessary stimulation parameters. In some cases, a lead icon representing the implanted lead is displayed to show the clinician where the lead is relative to the 3D anatomical regions of the patient.
1. A system comprising:
an electrical stimulation lead comprising:
a cylindrical lead housing defining a longitudinal axis and a circumference; and
a plurality of electrodes disposed at respective different positions equidistant around the circumference of the cylindrical lead housing; and
an implantable medical device configured to:
generate electrical stimulation signals deliverable via the electrical stimulation lead; and independently utilize each electrode of the plurality of electrodes by selecting values of stimulation parameters for each electrode that define the electrical stimulation signals, wherein each electrode of the plurality of electrodes is programmable with a different respective value for at least one of the stimulation parameters.
2. The system of claim 1 , wherein the implantable medical device is configured to deliver the electrical stimulation with at least a first electrode and a second electrode of the plurality of electrodes, the first electrode having a first current amplitude different than a second current amplitude of the second electrode.
3. The system of claim 1 , wherein the implantable medical device is configured to deliver the electrical stimulation with at least a first electrode and a second electrode of the plurality of electrodes, the first electrode having a first voltage amplitude different than a second voltage amplitude of the second electrode.
4. The system of claim 1 , wherein the implantable medical device is configured to deliver the electrical stimulation with at least a first electrode and a second electrode of the plurality of electrodes, the first electrode being an anode and the second electrode being a cathode.
5. The system of claim 1 , wherein the electrical stimulation lead comprises electrodes disposed at different respective axial positions along the longitudinal axis of the cylindrical lead housing, the electrodes disposed at different respective axial positions comprising the plurality of electrodes disposed at respective different positions around the circumference of the cylindrical lead housing.
6. The system of claim 5 , wherein the plurality of electrodes is a first plurality of electrodes disposed at a first axial position along the longitudinal axis of the cylindrical lead housing, and wherein the electrical stimulation lead comprises a second plurality of electrodes disposed at a second axial position along the longitudinal axis and respective different positions around the circumference of the cylindrical lead housing.
7. The system of claim 6 , wherein each of the first plurality of electrodes and the second plurality of electrodes comprises the same number of electrodes.
8. The system of claim 1 , wherein the plurality of electrodes comprises at least three electrodes.
9. The system of claim 1 , wherein the plurality of electrodes comprises at least four electrodes.
10. The system of claim 1 , wherein the implantable medical device is configured to offset a stimulation field in a radial direction from the longitudinal axis by independently utilizing at least one electrode of the plurality of electrodes to deliver the electrical stimulation signals that creates the stimulation field.
11. The system of claim 1 , wherein the plurality of electrodes are disposed at respective equidistant positions around the circumference of the cylindrical lead housing.
12. The system of claim 1 , wherein each electrode of the pluraity of electrodes is programmable as either an anode or a cathode, and wherein the implantable medical device is configured to program each electrode of the plurality of electrodes as one of the anode or the cathode.
13. A method comprising:
selecting, by one or more processors, values of stimulation parameters for a plurality of electrodes that define electrical stimulation signals to independently utilize each electrode of the plurality of electrodes;
generating, by an implantable medical device, the electrical stimulation signals deliverable via an electrical stimulation lead and defined by the selected values of the stimulation parameters, wherein the electrical stimulation lead comprises:
a cylindrical lead housing defining a longitudinal axis and a circumference; and
the plurality of electrodes disposed at respective different positions equidistant around the circumference of the cylindrical lead housing, wherein each electrode of the plurality of electrodes is programmable with a different respective value for at least one of the stimulation parameters.
14. The method of claim 13 , wherein generating the electrical stimulation signals comprises generating the electrical stimulation signals for at least a first electrode and a second electrode of the plurality of electrodes, the first electrode having a first current amplitude different than a second current amplitude of the second electrode.
15. The method of claim 13 , wherein generating the electrical stimulation signals comprises generating the electrical stimulation signals for at least a first electrode and a second electrode of the plurality of electrodes, the first electrode having a first voltage amplitude different than a second voltage amplitude of the second electrode.
16. The method of claim 13 , wherein generating the electrical stimulation signals comprises generating the electrical stimulation signals for at least a first electrode and a second electrode of the plurality of electrodes, the first electrode being an anode and the second electrode being a cathode.
17. The method of claim 13 , wherein the electrical stimulation lead comprises electrodes disposed at different respective axial positions along the longitudinal axis of the cylindrical lead housing, the electrodes disposed at different respective axial positions comprising the plurality of electrodes disposed at respective different positions around the circumference of the cylindrical lead housing.
18. The method of claim 17 , wherein the plurality of electrodes is a first plurality of electrodes disposed at a first axial position along the longitudinal axis of the cylindrical lead housing, and wherein the electrical stimulation lead comprises a second plurality of electrodes disposed at a second axial position along the longitudinal axis and respective different positions around the circumference of the cylindrical lead housing.
19. The method of claim 18 , wherein each of the first plurality of electrodes and the second plurality of electrodes comprises the same number of electrodes.
20. The method of claim 13 , wherein the plurality of electrodes comprises at least three electrodes.
21. The method of claim 13 , wherein the plurality of electrodes comprises at least four electrodes.
22. The method of claim 13 , wherein selecting the values of the stimulation parameters comprises independently utilizing the values of the stimulation parameters for the plurality of electrodes to offset a stimulation field in a radial direction from the longitudinal axis created by the electrical stimulation signals.
23. The system of claim 13 , wherein each electrode of the plurality of electrodes is programmable as either an anode or a cathode, and wherein the method further comprises programming each electrode of the plurality of electrodes as one of the anode or the cathode.
24. A non-transitory computer-readable storage medium comprising instructions that, when executed, cause one or more processors to:
select values of stimulation parameters for a plurality of electrodes that define electrical stimulation signals to independently utilize each electrode of the plurality of electrodes; and
control an implantable medical device to generate the electrical stimulation signals deliverable via an electrical stimulation lead and defined by the selected values of the stimulation parameters, wherein the electrical stimulation lead comprises:
a cylindrical lead housing defining a longitudinal axis and a circumference; and
the plurality of electrodes disposed at respective different positions equidistant around the circumference of the cylindrical lead housing, wherein each electrode of the plurality of electrodes is programmable with a different respective value for at least one of the stimulation parameters.