Peripheral nerve field stimulation control
First Claim
1. A method comprising:
- controlling a medical device to deliver peripheral nerve field stimulation to a region of a body of a patient in which the patient experiences pain via at least one electrode implanted in the region;
receiving, with a processor, a first signal indicative of a physiological parameter of the patient in the region of the body in which the patient experiences pain, wherein the signal is generated by a sensing module, and wherein the signal indicates a response of the patient to the peripheral nerve field stimulation;
receiving, with the processor, a control physiological signal indicative of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain, wherein the control physiological signal changes as a function of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain;
comparing, with the processor, the first signal to the control physiological signal; and
controlling, with the processor, the delivery of the peripheral nerve field stimulation by the medical device based on the comparison of the first signal and the control physiological signal.
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Accused Products
Abstract
Peripheral nerve field stimulation (PNFS) may be controlled based on detected physiological effects of the PNFS, which may be an efferent response to the PNFS. In some examples, a closed-loop therapy system may include a sensing module that senses a physiological parameter of the patient, which may be indicative of the patient'"'"'s response to the PNFS. Based on a signal generated by the sensing module, the PNFS may be activated, deactivated or modified. Example physiological parameters of the patient include heart rate, respiratory rate, electrodermal activity, muscle activity, blood flow rate, sweat gland activity, pilomotor reflex, or thermal activity of the patient'"'"'s body. In some examples, a patient pain state may be detected based on a signal generated by the sensing module, and therapy may be controlled based on the detection of the pain state.
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Citations
43 Claims
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1. A method comprising:
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controlling a medical device to deliver peripheral nerve field stimulation to a region of a body of a patient in which the patient experiences pain via at least one electrode implanted in the region; receiving, with a processor, a first signal indicative of a physiological parameter of the patient in the region of the body in which the patient experiences pain, wherein the signal is generated by a sensing module, and wherein the signal indicates a response of the patient to the peripheral nerve field stimulation; receiving, with the processor, a control physiological signal indicative of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain, wherein the control physiological signal changes as a function of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain; comparing, with the processor, the first signal to the control physiological signal; and controlling, with the processor, the delivery of the peripheral nerve field stimulation by the medical device based on the comparison of the first signal and the control physiological signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a sensing module that generates a first signal indicative of a physiological parameter of a patient in a region of a body of the patient in which the patient experiences pain and a control physiological signal indicative of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain, wherein the control physiological signal changes as a function of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain; a medical device that delivers peripheral nerve field stimulation to the region of the body of the patient in which the patient experiences pain via at least one electrode implanted in the region; and a processor that receives the first signal and the control physiological signal from the sensing module, compares first signal to the control physiological signal, and controls the delivery of the peripheral nerve field stimulation by the medical device based on the comparison of the first signal and the control physiological signal, wherein the first signal indicates a response of the patient to the peripheral nerve field stimulation. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A system comprising:
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means for delivering peripheral nerve field stimulation to a region of a body of a patient in which the patient experiences pain via at least one electrode implanted in the region; means for receiving a first signal indicative of a physiological parameter of the patient in the region of the body in which the patient experiences pain, wherein the first signal is generated by means for sensing the physiological parameter, and wherein the first signal indicates a response of the patient to the peripheral nerve field stimulation; means for receiving a control physiological signal indicative of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain, wherein the control physiological signal changes as a function of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain; means for comparing the first signal to the control physiological signal; and means for controlling the delivery of the peripheral nerve field stimulation based on the comparison of the first signal and the control physiological signal. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38)
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39. A computer-readable storage medium comprising instructions that, when executed by a processor, cause the processor to:
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control a medical device to deliver peripheral nerve field stimulation to a region of a body of a patient in which the patient experiences pain via at least one electrode implanted in the region; receive a first signal indicative of a physiological parameter of the patient in the region of the body in which the patient experiences pain, wherein the first signal is generated by a sensing module, and wherein the first signal indicates a response of the patient to the peripheral nerve field stimulation; receive a control physiological signal indicative of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain, wherein the control physiological signal changes as a function of the physiological parameter of the patient outside of the region of the body in which the patient experiences pain; compare the first signal to the control physiological signal; and control the delivery of the peripheral nerve field stimulation based on the comparison of the first signal and the control physiological signal. - View Dependent Claims (40, 41, 42, 43)
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Specification