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US 10,238,876 B2Granted
Stimulation aggressor management for biomedical signal acquisition systems
AssigneeMedtronic, Inc.
InventorsDavid A. Dinsmoor, Scott R. Stanslaski, Erik J. Peterson, Paul R. Mazanec
Life of this patent
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Abstract
Techniques, devices, and systems for isolating, by isolation circuitry connected to a power source, a voltage from the power source, receiving, by sensing circuitry, the isolated voltage, receiving, by the sensing circuitry, a reference voltage from an implantable reference electrode via a reference node, and sensing, by the sensing circuitry, the biomedical signal with two or more implantable sensing electrodes using the isolated voltage with respect to the reference voltage.
Claims38
An implantable electrical stimulation device comprising:
- a housing;
- a power source;
- sensing circuitry configured to sense a biomedical signal of a patient via at least two implantable sensing electrodes;
- isolation circuitry connected between the power source and the sensing circuitry, wherein the isolation circuitry is configured to:
- isolate a voltage received from the power source;
- and
- provide the isolated voltage to the sensing circuitry;
- stimulation circuitry configured to deliver electrical stimulation therapy to the patient via at least two implantable stimulation electrodes;
- and
- an implantable reference electrode connected to the sensing circuitry, wherein the sensing circuitry is configured to receive, via the implantable reference electrode, a common mode voltage introduced by the electrical stimulation therapy, and wherein the implantable reference electrode is connected to a reference node, and wherein the reference node is connected to a low power rail in the sensing circuitry.
7 more elements
An implantable electrical stimulation device comprising:
- a first housing comprising:
- a power source;
- a first portion of a first isolation circuitry connected to the power source;
- and
- a first portion of a second isolation circuitry connected to the power source;
- a second housing comprising:
- a second portion of the first isolation circuitry connected to the first portion of the first isolation circuitry;
- sensing circuitry connected to the first isolation circuitry and configured to sense a biomedical signal via at least two implantable sensing electrodes;
- and
- an implantable reference electrode connected to the sensing circuitry, wherein the sensing circuitry is configured to receive, via the implantable reference electrode, a common mode voltage introduced by electrical stimulation therapy, and wherein the implantable reference electrode is connected to a reference node, and wherein the reference node is connected to a low power rail in the sensing circuitry;
- and
- a third housing comprising:
- a second portion of the second isolation circuitry connected to the first portion of the second isolation circuitry;
- and
- stimulation circuitry connected to the second isolation circuitry and configured to deliver the electrical stimulation therapy to the patient via at least two stimulation electrodes,
- wherein the first isolation circuitry is configured to isolate a first voltage received from the power source and provide the isolated first voltage to the sensing circuitry, and wherein the second isolation circuitry is configured to isolate a second voltage received from the power source and provide the isolated second voltage to the stimulation circuitry.
13 more elements
An implantable electrical stimulation device comprising:
- a first housing comprising:
- a power source;
- and
- a first portion of first isolation circuitry connected to the power source;
- and
- a second housing comprising:
- a second portion of the first isolation circuitry connected to the first portion of the first isolation circuitry;
- a second isolation circuitry connected to the second portion of the first isolation circuitry;
- sensing circuitry connected to the second isolation circuitry and configured to sense a biomedical signal via at least two implantable sensing electrodes;
- an implantable reference electrode connected to the sensing circuitry, wherein the sensing circuitry is configured to receive, via the implantable reference electrode, a common mode voltage introduced by electrical stimulation therapy, and wherein the implantable reference electrode is connected to a reference node, and wherein the reference node is connected to a low power rail in the sensing circuitry;
- and
- stimulation circuitry connected to the second portion of the first isolation circuitry and configured to deliver the electrical stimulation therapy to the patient via at least two stimulation electrodes,
- wherein the first isolation circuitry is configured to isolate a first voltage received from the power source and provide the isolated first voltage to the stimulation circuitry and the second isolation circuitry, and wherein the second isolation circuitry is configured to isolate a second voltage received from the first isolation circuitry and provide the isolated second voltage to the sensing circuitry.
10 more elements
Dependencies are inferred from the claim text.