System and method for model-based estimation and control of epidural spinal cord stimulation
AssigneeHRL Laboratories, LLC
InventorsCorey M. Thibeault, Narayan Srinivasa
Life of this patent
Estimating the term…
Abstract
Described is a system for controlling epidural spinal cord stimulation. Using an Unscented Kalman Filter (UKF), the system receives sensed physiological signals from a subject and, based on the sensed physiological signals, estimating an unobservable state of a target area on the subject. A central pattern generator is then used to generate a stimulation pattern based on the unobservable state. The stimulation pattern is applied to the target area (e.g., spinal cord) of the subject using an electrode array. Receiving feedback, the UKF continuously updates a model of the spinal cord, which results in adjustment of the stimulation pattern as necessary.
Claims24
A system for controlling epidural spinal cord stimulation, the system comprising:
- one or more processors and a memory, the memory being a non-transitory computer-readable medium having executable instructions encoded thereon, such that upon execution of the instructions, the one or more processors perform operations of:
- receiving sensed physiological signals from a subject and, based on the sensed physiological signals, estimating an unobservable state of a target area on the subject;
- generating a stimulation pattern based on the unobservable state for applying to the target area on the subject using an electrode array;
- and
- wherein the stimulation pattern is simultaneously applied to the target area of the subject and into a model of spinal cord state.
A method for controlling epidural spinal cord stimulation, the method comprising acts of:
- receiving sensed physiological signals from a subject and, based on the sensed physiological signals, estimating an unobservable state of a target area on the subject;
- generating a stimulation pattern based on the unobservable state for applying to the target area on the subject using an electrode array;
- and
- wherein the stimulation pattern is simultaneously applied to the target area of the subject and into a model of spinal cord state.
A computer program product for controlling epidural spinal cord stimulation, the computer program product comprising:
- a non-transitory computer-readable medium having executable instructions encoded thereon, such that upon execution of the instructions by one or more processors, the one or more processors perform operations of:
- receiving sensed physiological signals from a subject and, based on the sensed physiological signals, estimating an unobservable state of a target area on the subject;
- generating a stimulation pattern based on the unobservable state for applying to the target area on the subject using an electrode array;
- and
- wherein the stimulation pattern is simultaneously applied to the target area of the subject and into a model of spinal cord state.
Dependencies are inferred from the claim text.