Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods
Selective high-frequency spinal cord modulation for inhibiting pain with reduced side effects and associated systems and methods are disclosed. In particular embodiments, a programmer has instructions that, in response to an input, select between a paresthesia-inducing electrical therapy signal having a frequency of less than 1.2 kHz, and a non-paresthesia-inducing electrical therapy signal having a frequency in a range from 1.5 kHz to 100 kHz.
1. A spinal cord stimulation system, comprising:
an implantable signal generator programmable to generate an electrical therapy signal;
an implantable signal delivery device having one or more electrical contacts, wherein the signal delivery device is electrically coupleable to the signal generator, and wherein the signal delivery device is designed to deliver the electrical therapy signal to the patient's spinal cord; and
a programmer in electrical communication with the signal generator,
wherein the programmer includes programming instructions contained in memory, and that, in response to an input, select between at least first and second sets of therapy signal parameters,
wherein the first set of therapy signal parameters generates a paresthesia-inducing electrical therapy signal and includes a first frequency in a first frequency range of less than 1.2 kHz, and wherein the second set of therapy signal parameters generates a non-paresthesia-inducing electrical therapy signal and includes a second frequency in a second frequency range from 1.5 kHz to 100 kHz, and a pulse width in a pulse width range from 10 microseconds to 333 microseconds.
2. The system of claim 1 , wherein:
the input is a first input;
in response to the first input, the instructions select the first set of therapy signal parameters;
in response to a second input, the instructions select the second set of therapy signal parameters; and
signals delivered in accordance with the first and second sets of therapy signal parameters do not overlap temporally with each other.
3. The system of claim 1 , wherein the first set of therapy signal parameters includes a first electrode having a position contained in memory as corresponding to a first target location for the paresthesia-inducing electrical therapy signal, and the second set of therapy signal parameters includes a second electrode having a position contained in memory as corresponding to a second target location for the non-paresthesia-inducing electrical therapy signal.
4. The system of claim 3 , wherein the first target location and the second target location are the same.
5. The system of claim 1 , wherein the signal generator is programmable to generate and deliver the paresthesia-inducing electrical therapy signal or the non-paresthesia-inducing electrical therapy signal to a thoracic vertebral level in the patient via an electrode of the signal delivery device having a position contained in memory as corresponding to the thoracic vertebral level.
6. The system of claim 5 , wherein the electrode of the signal delivery device has a position contained in memory as corresponding to a thoracic vertebral level between T9 and T12, inclusively.
7. The system of claim 1 , wherein the second frequency range is from 1.5 kHz to 50 kHz.
8. The system of claim 1 , wherein the second frequency range is from 3 kHz to 20 kHz.
9. The system of claim 1 , wherein the second frequency range is from 3 kHz to 10 kHz.
10. The system of claim 1 , wherein the second frequency is 10 kHz.
11. The system of claim 1 , wherein the second set of therapy signal parameters includes an amplitude in an amplitude range from 0.1 mA to 20 mA.
12. The system of claim 1 , wherein the second set of therapy signal parameters includes an amplitude in an amplitude range from 0.5 mA to 10 mA.
13. The system of claim 1 , wherein the second set of therapy signal parameters includes an amplitude in an amplitude range from 1 mA to 6 mA.
14. The system of claim 1 , wherein the second set of therapy signal parameters includes an amplitude in an amplitude range from 0.5 mA to 4 mA.
15. The system of claim 1 , wherein the second set of therapy signal parameters includes an amplitude in an amplitude range from 1 mA to 4 mA.
16. The system of claim 1 , wherein the second set of therapy signal parameters includes an amplitude in an amplitude range from 2 mA to 3.5 mA.
17. The system of claim 1 , wherein the pulse width range is from 25 microseconds to 166 microseconds.
18. The system of claim 1 , wherein the pulse width range is from 30 microseconds to 35 microseconds.
19. The system of claim 1 , wherein the second frequency range is from 5 kHz to 15 kHz, and wherein the second set of therapy signal parameters includes an amplitude in an amplitude range from 0.5 mA to 10 mA.
20. The system of claim 1 , wherein the second frequency is 10 kHz, and wherein the pulse width range is from 30 microseconds to 35 microseconds, and wherein the second set of therapy signal parameters includes an amplitude in an amplitude range of up to 6 mA.
21. The system of claim 1 , wherein the programmer is in wireless communication with the implantable signal generator in order to program the implantable signal generator with therapy signal parameters for the electrical therapy signal.
22. The system of claim 1 , wherein the signal generator includes a processor with instructions for generating the electrical therapy signal in response to input received from the programmer.