Method and apparatus for controlling neurostimulation according to physical state
First Claim
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1. A system for delivering neurostimulation to a patient, the system comprising:
- a sensor circuit configured to determine a current value of a sensor parameter representing a physical state of the patient;
a stimulation output circuit configured to deliver the neurostimulation; and
a stimulation control circuit configured to store a plurality of values of a sensor-driven parameter, identify a value of the sensor-driven parameter for the current value of the sensor parameter from the stored plurality of values of the sensor-driven parameter, determine whether the identified value of the sensor-driven parameter is currently optimal, control the delivery of the neurostimulation using the identified value of the sensor-driven parameter in response to the identified value of the sensor-driven parameter being determined to be currently optimal, and perform a titration of the neurostimulation for the current value of the sensor parameter in response to the identified value of the sensor-driven parameter being determined to be currently not optimal.
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Abstract
A neurostimulation system senses a signal indicative of a patient'"'"'s physical state such as posture and/or activity level. In various embodiments, a stored value for each of stimulation parameters controlling delivery of neurostimulation is selected according to the patient'"'"'s physical state. In various embodiments, values of the stimulation parameters are approximately optimized for each of a number of different physical states, and are stored for later selection.
62 Citations
20 Claims
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1. A system for delivering neurostimulation to a patient, the system comprising:
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a sensor circuit configured to determine a current value of a sensor parameter representing a physical state of the patient; a stimulation output circuit configured to deliver the neurostimulation; and a stimulation control circuit configured to store a plurality of values of a sensor-driven parameter, identify a value of the sensor-driven parameter for the current value of the sensor parameter from the stored plurality of values of the sensor-driven parameter, determine whether the identified value of the sensor-driven parameter is currently optimal, control the delivery of the neurostimulation using the identified value of the sensor-driven parameter in response to the identified value of the sensor-driven parameter being determined to be currently optimal, and perform a titration of the neurostimulation for the current value of the sensor parameter in response to the identified value of the sensor-driven parameter being determined to be currently not optimal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for delivering neurostimulation to a patient, the system comprising:
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a sensor circuit configured to determine a current value of a sensor parameter representing a physical state of the patient; a stimulation output circuit configured to deliver the neurostimulation; and a stimulation control circuit configured to store a plurality of values of a sensor-driven parameter, identify a value of the sensor-driven parameter for the current value of the sensor parameter from the stored plurality of values of the sensor-driven parameter, determine whether the identified value of the sensor-driven parameter is currently optimal, control the delivery of the neurostimulation using the identified value of the sensor-driven parameter in response to the identified value of the sensor-driven parameter being determined to be currently optimal, and approximately optimize the plurality of values of the sensor-driven parameter by performing a titration of the neurostimulation for a corresponding plurality of values of the sensor parameter. - View Dependent Claims (10, 11)
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12. A method for controlling neurostimulation, the method comprising:
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storing a plurality of values of a sensor-driven parameter; delivering neurostimulation to a patient; determining a current value of a sensor parameter indicative of a physical state of the patient; identifying a value of the sensor-driven parameter for the current value of the sensor parameter from the stored plurality of values of the sensor-driven parameter; determining whether the identified value of the sensor parameter is currently optimal; controlling the delivery of the neurostimulation using the identified value of the sensor-driven parameter in response to the identified value of the sensor-driven parameter being determined to be currently optimal; and titrating the neurostimulation for the current value of the sensor parameter in response to the identified value of the sensor-driven parameter being determined to be currently not optimal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification