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 sense a signal indicative of a physical state of the patient and set a current value for a sensor parameter representing the physical state to one of predefined values of the sensor parameter using the sensed signal;
a stimulation output circuit configured to deliver the neuro stimulation; and
a stimulation control circuit configured to control the delivery of the neurostimulation using a plurality of stimulation parameters including one or more sensor-driven parameters, the stimulation control circuit including;
a storage circuit configured to store one or more values for each parameter of the plurality of stimulation parameters, the one or more values including sensor-dependent values for each sensor-driven parameter of the one or more sensor-driven parameters, the sensor-dependent values each corresponding to a value of the predefined values of the sensor parameter; and
a stimulation parameter adjustor configured to determine whether a first stored sensor-dependent value for each parameter of the one or more sensor-driven parameters is currently optimal and select the first stored sensor-dependent value for the each parameter in response to the determination that the first stored sensor-dependent value for the each parameter is currently optimal, the first stored sensor-dependent value corresponding to the current value of the sensor parameter.
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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.
33 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 sense a signal indicative of a physical state of the patient and set a current value for a sensor parameter representing the physical state to one of predefined values of the sensor parameter using the sensed signal; a stimulation output circuit configured to deliver the neuro stimulation; and a stimulation control circuit configured to control the delivery of the neurostimulation using a plurality of stimulation parameters including one or more sensor-driven parameters, the stimulation control circuit including; a storage circuit configured to store one or more values for each parameter of the plurality of stimulation parameters, the one or more values including sensor-dependent values for each sensor-driven parameter of the one or more sensor-driven parameters, the sensor-dependent values each corresponding to a value of the predefined values of the sensor parameter; and a stimulation parameter adjustor configured to determine whether a first stored sensor-dependent value for each parameter of the one or more sensor-driven parameters is currently optimal and select the first stored sensor-dependent value for the each parameter in response to the determination that the first stored sensor-dependent value for the each parameter is currently optimal, the first stored sensor-dependent value corresponding to the current value of the sensor parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling neurostimulation, the method comprising:
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delivering neurostimulation to a patient; controlling the delivery of the neurostimulation using a plurality of stimulation parameters including one or more sensor-driven parameters; sensing a signal indicative of a physical state of the patient; setting a current value of a sensor parameter to a value selected from a plurality of predefined values using the sensed signal; identifying a first stored sensor-dependent value for each parameter of the one or more sensor-driven parameters for the current value of the sensor parameter; determining whether the identified first stored sensor-dependent value is currently optimal; and applying the identified first stored sensor-dependent value in the controlling of the delivery of the neurostimulation in response to a determination that the identified stored sensor-dependent value is currently optimal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification