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US 12,642,971 B2Granted
Feedback control of electrical stimulation therapy based on electric field imaging
AssigneeMedtronic, Inc.
InventorsJerel K. Mueller, Leonid M. Litvak, Vinod Sharma, Katelynn M. Johnson, Jiashu Li
Life of this patent
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Abstract
Devices, systems, and techniques are described that use electric field imaging (often referred to as the sensed stimulation artifact representative of a delivered stimulus) as an informative feedback signal to provide closed loop control of electrical stimulation therapy. In some examples, the electric field imaging may be used in combination with other feedback signals, such as ECAP do monitor and adjust the delivered electrical stimulation therapy.
Claims20
A medical device comprising:
- stimulation generation circuitry configured to deliver electrical stimulation to a patient;
- sensing circuitry configured to sense the delivered electrical stimulation;
- and
- processing circuitry operatively coupled to a memory, the processing circuitry configured to:
- determine a value of one or more characteristics of the sensed delivered stimulation;
- and
- based on the value of the one or more characteristics of the sensed delivered stimulation, adjust a value of a stimulation parameter that at least partially defines subsequent stimulation to be delivered to the patient,
- wherein the stimulation generation circuitry is configured to output a stimulation pulse to a first set of electrodes,
- wherein the sensing circuitry configured to sense the stimulation pulse via a second set of electrodes and sense the stimulation pulse via a third set of electrodes, and
- wherein the processing circuitry is configured to select one of the second set of electrodes or the third set of electrodes as a default set of sensing electrodes, based on:
- a value of one or more characteristics of the sensed stimulation pulse received from the second set of electrodes;
- and
- a value of one or more characteristics of the sensed stimulation pulse received from the third set of electrodes.
10 more elements
A method comprising:
- causing, by processing circuitry of a medical device, stimulation generation circuitry of the medical device to deliver electrical stimulation to a patient, wherein the processing circuitry is operatively coupled to a memory;
- receiving, by the processing circuitry, an indication of the delivered electrical stimulation from sensing circuitry of the medical device that is configured to sense the delivered electrical stimulation;
- determining, by the processing circuitry, a value of one or more characteristics of the sensed delivered stimulation;
- based on the value of the one or more characteristics of the sensed delivered stimulation, adjusting, by the processing circuitry, a value of a stimulation parameter that at least partially defines subsequent stimulation to be delivered to the patient
- outputting, by the stimulation generation circuitry, stimulation pulse to a first set of electrodes;
- sensing, by the sensing circuitry, the stimulation pulse via a second set of electrodes;
- sensing, by the sensing circuitry, the stimulation pulse via a third set of electrodes;
- selecting, by the processing circuitry, one of the second set of electrodes or the third set of electrodes as a default set of sensing electrodes, based on:
- a value of one or more characteristics of the sensed stimulation pulse received from the second set of electrodes;
- and
- a value of one or more characteristics of the sensed stimulation pulse received from the third set of electrodes.
8 more elements
A non-transitory computer-readable storage medium comprising instructions that, when executed, causes processing circuitry:
- control stimulation generation circuitry of a medical device to deliver electrical stimulation to a patient, wherein the processing circuitry is operatively coupled to a memory;
- receive an indication of the delivered electrical stimulation sensed by from sensing circuitry of the medical device that is configured to sense the delivered electrical stimulation;
- determine a value of one or more characteristics of the sensed delivered stimulation;
- adjust, based on the value of the one or more characteristics of the sensed delivered stimulation, a value of a stimulation parameter that at least partially defines subsequent stimulation to be delivered to the patient;
- control the stimulation generation circuitry to output a stimulation pulse to a first set of electrodes,
- control sensing circuitry to sense the stimulation pulse via a second set of electrodes and sense the stimulation pulse via a third set of electrodes, and
- select one of the second set of electrodes or the third set of electrodes as a default set of sensing electrodes, based on:
- a value of one or more characteristics of the sensed stimulation pulse received from the second set of electrodes;
- and
- a value of one or more characteristics of the sensed stimulation pulse received from the third set of electrodes.
7 more elements
Dependencies are inferred from the claim text.