System to estimate the location of a spinal cord physiological midline
First Claim
1. A system comprising:
- one or more leads implantable in a patient, each of the one or more leads comprising one or more spinal electrodes; and
an external device comprising a non-transitory computer-readable medium, comprising instructions, which when executed by a control circuitry of the external device, configure the control circuitry to;
send instructions to a stimulation device to provide electrical stimulation at a first one or more peripheral electrodes that are positionable on a first side of an anatomical midline of the patient and to a second one or more peripheral electrodes that are positionable on a second side of an anatomical midline of the patient;
receive data from the one or more leads that is indicative of a response at the one or more spinal electrodes to the electrical stimulation provided at the first and second one or more peripheral electrodes; and
calculate, based on the received data, a ratio of the responses at the one or more spinal electrodes to the electrical stimulation provided at the first and second one or more peripheral electrodes, andcalculate, based on the ratio, a measure of each of the one or more spinal electrodes'"'"' position with respect to a physiological midline.
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Accused Products
Abstract
Techniques for determining the location of a physiological midline are disclosed. A first technique evaluates the response to stimulation of spinal electrodes at peripheral electrodes on different sides of the body. In this technique, a spinal electrode'"'"'s position relative to a physiological midline is determined based on a relationship between responses to its stimulation observed on different sides of the body. A second technique evaluates the response of spinal electrodes to stimulation of peripheral electrodes on different sides of the body. In this technique, a spinal electrode'"'"'s position relative to a physiological midline is determined based on the different responses that it observes to stimulation on different sides of the body.
29 Citations
18 Claims
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1. A system comprising:
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one or more leads implantable in a patient, each of the one or more leads comprising one or more spinal electrodes; and an external device comprising a non-transitory computer-readable medium, comprising instructions, which when executed by a control circuitry of the external device, configure the control circuitry to; send instructions to a stimulation device to provide electrical stimulation at a first one or more peripheral electrodes that are positionable on a first side of an anatomical midline of the patient and to a second one or more peripheral electrodes that are positionable on a second side of an anatomical midline of the patient; receive data from the one or more leads that is indicative of a response at the one or more spinal electrodes to the electrical stimulation provided at the first and second one or more peripheral electrodes; and calculate, based on the received data, a ratio of the responses at the one or more spinal electrodes to the electrical stimulation provided at the first and second one or more peripheral electrodes, and calculate, based on the ratio, a measure of each of the one or more spinal electrodes'"'"' position with respect to a physiological midline. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system, comprising:
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one or more leads implantable in a patient, each of the one or more leads comprising one or more spinal electrodes, a display; a memory; control circuitry; and a non-transitory computer-readable medium, comprising instructions, which when executed by the control circuitry, cause the control circuitry to; send instructions to a stimulation device to provide electrical stimulation at a plurality of corresponding pairs of peripheral electrodes, wherein the corresponding pairs of peripheral electrodes each comprise peripheral electrodes positionable on opposite sides of an anatomical midline of a patient; receive data from the one or more leads that is indicative of a response at the one or more spinal electrodes to the electrical stimulation provided at the one or more pairs of peripheral electrodes; and calculate, based on the received data, a ratio of the response to electrical stimulation provided on opposite sides of the anatomical midline, and calculate, based on the ratio, a measure of each of the one or more spinal electrodes'"'"' position with respect to a physiological midline. - View Dependent Claims (18)
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Specification