Neurostimulator configured to sense evoked potentials in peripheral nerves
First Claim
1. A method of providing a stimulation therapy to a patient, the method comprising:
- performing a first calibration process in a first patient posture state, wherein the first calibration process associates a sensation experienced by a patient, in the first patient posture state, with a first amount of an evoked potential and a first value of a stimulation parameter for the stimulation therapy to achieve the first amount of evoked potential;
performing a second calibration process in a second patient posture state, wherein the second calibration process associates the sensation experienced by a patient, in the second patient posture state, with a second amount of the evoked potential and a second value of the stimulation parameter for the stimulation therapy to achieve the second amount of evoked potential;
detecting, after the first and second calibration processes have been performed, a current patient posture state;
if the current patient posture state is detected as the first patient posture state, applying the stimulation therapy to the patient using the first value of the stimulation parameter as an initial value; and
if the current patient posture state is detected as the second patient posture state, applying the stimulation therapy to the patient using the second value of the stimulation parameter as the initial value.
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Abstract
A method of providing stimulation therapy to a patient includes performing first and second calibration processes in first and second patient posture states, respectively. The first and second calibration processes respectively associates a sensation experienced by a patient, in the respective patient posture states, with first and second amounts of an evoked potential, respectively, and also with first and second values of a stimulation parameter to achieve the first and second amounts of evoked potential, respectively. Thereafter, a current patient posture state is detected. If the current patient posture state is detected as the first patient posture state, stimulation therapy is applied to the patient using the first value of the stimulation parameter as an initial value. If the current patient posture state is detected as the second patient posture state, stimulation therapy is applied to the patient using the second value of the stimulation parameter as the initial value.
115 Citations
20 Claims
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1. A method of providing a stimulation therapy to a patient, the method comprising:
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performing a first calibration process in a first patient posture state, wherein the first calibration process associates a sensation experienced by a patient, in the first patient posture state, with a first amount of an evoked potential and a first value of a stimulation parameter for the stimulation therapy to achieve the first amount of evoked potential; performing a second calibration process in a second patient posture state, wherein the second calibration process associates the sensation experienced by a patient, in the second patient posture state, with a second amount of the evoked potential and a second value of the stimulation parameter for the stimulation therapy to achieve the second amount of evoked potential; detecting, after the first and second calibration processes have been performed, a current patient posture state; if the current patient posture state is detected as the first patient posture state, applying the stimulation therapy to the patient using the first value of the stimulation parameter as an initial value; and if the current patient posture state is detected as the second patient posture state, applying the stimulation therapy to the patient using the second value of the stimulation parameter as the initial value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A medical system for stimulating a patient, the medical system comprising:
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an electronic storage configured to store; an association of a sensation experienced by the patient in a first patient posture state with a first amount of an evoked potential and a first value of a stimulation parameter for a stimulation therapy to cause the first amount of evoked potential; and an association of a sensation experienced by the patient in a second patient posture state with a second amount of the evoked potential and a second value of the stimulation parameter for the stimulation therapy to cause the second amount of evoked potential; one or more sensors configured to detect a present patient posture state; a microcontroller coupled to the one or more sensors and the electronic storage; and stimulation circuitry configured to generate, in response to instructions from the microcontroller; a first stimulation therapy using the first value as an initial value of the stimulation parameter in response to a detection of the patient being in the first patient posture state; and a second stimulation therapy using the second value as the initial value of the stimulation parameter in response to a detection of the patient being in the second patient posture state. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A medical device for providing a stimulation therapy to a patient, the medical device comprising:
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an electronic storage storing respective results of a first calibration process and a second calibration process, wherein; the result of the first calibration process associates a sensation experienced by the patient, in a first patient posture state, with a first amount of an evoked potential and a first value of a stimulation parameter for the stimulation therapy to achieve the first amount of evoked potential; and the result of the second calibration process associates the sensation experienced by the patient, in a second patient posture state, with a second amount of the evoked potential and a second value of the stimulation parameter for the stimulation therapy to achieve the second amount of evoked potential; one or more sensors configured to detect a current patient posture state; a microcontroller coupled to the electronic storage and to the one or more sensors; and stimulation circuitry configured to generate the stimulation therapy to be delivered to a nerve site of the patient in response to instructions from the microcontroller in a manner such that; the stimulation therapy is generated using the first value as an initial value of the stimulation parameter in response to the first patient posture state being detected as the current patient posture state; and the stimulation therapy is generated using the second value as the initial value of the stimulation parameter in response to the second patient posture state being detected as the current patient posture state. - View Dependent Claims (17, 18, 19, 20)
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Specification