Dorsal spinal column characterization with evoked potentials
AssigneeMedtronic, Inc.
InventorsDavid A. Dinsmoor, Timothy J. Denison, Xin Su
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Abstract
This disclosure relates to methods, devices, and systems for delivering and adjusting stimulation therapy. In one example, a method comprising delivering, by a stimulation electrode, electrical stimulation as a candidate therapy to a patient according to a set of candidate therapy parameters, the stimulation electrode located in proximity to the dorsal column of a patient; sensing, by a sensing electrode, an electrically evoked compound action potential (eECAP) signal in response to the delivery of the electrical stimulation; and classifying, by a processor, the sensed eECAP signal generated in response to the application of the candidate therapy relative to an eECAP baseline is disclosed.
Claims20
A method comprising:
- determining, based on sensed electrically evoked compound action potential (eECAP) signals elicited by electrical stimulation defined by respective different therapy parameter values, a threshold eECAP value at which an eECAP biomarker is detectable for the electrical stimulation;
- determining first therapy parameters of the different therapy parameters that define the electrical stimulation at a first intensity that elicited the eECAP biomarker at the threshold eECAP value;
- determining second therapy parameters for subsequent electrical stimulation that define a second intensity less than the first intensity;
- and
- controlling stimulation circuitry to deliver the subsequent electrical stimulation to the patient as an incontinence therapy.
A system comprising:
- a stimulation generator configured to deliver electrical stimulation therapy to a patient;
- and
- processing circuitry configured to:
- determine, based on sensed electrically evoked compound action potential (eECAP) signals elicited by the electrical stimulation defined by respective different therapy parameter values, a threshold eECAP value at which an eECAP biomarker is detectable for the electrical stimulation;
- determine first therapy parameters of the different therapy parameters that define the electrical stimulation at a first intensity that elicited the eECAP biomarker at the threshold eECAP value;
- determine second therapy parameters for subsequent electrical stimulation that define a second intensity less than the first intensity;
- and
- control stimulation circuitry to deliver the subsequent electrical stimulation to the patient as a an incontinence therapy.
A non-transitory computer-readable medium comprising instructions that, when executed, cause processing circuitry to:
- determine, based on sensed electrically evoked compound action potential (eECAP) signals elicited by the electrical stimulation defined by respective different therapy parameter values, a threshold eECAP value at which an eECAP biomarker is detectable for the electrical stimulation;
- determine first therapy parameters of the different therapy parameters that define the electrical stimulation at a first intensity that elicited the eECAP biomarker at the threshold eECAP value;
- determine second therapy parameters for subsequent electrical stimulation that define a second intensity less than the first intensity;
- and
- control stimulation circuitry to deliver the subsequent electrical stimulation to the patient as a an incontinence therapy.
Dependencies are inferred from the claim text.