US 11,883,176 B2Granted

Low-power wearable smart ECG patch with on-board analytics

AssigneeThe Research Foundation for The State University of New York

InventorsKanad Ghose, Sandeep S. Mittal

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Abstract

A wearable self-contained Smart ECG Sensor Patch (SEP) is provided for acquiring, analyzing and transmitting ECG data, heart rate and heart rate variability (heart rate variability) parameters to a host device via a secure Bluetooth low energy link. SEP incorporates all circuitry for acquisition, analysis and communication, and a battery on a small flexible substrate with two gold electrodes on the reverse side. Prior to on-board analysis, noise and motion artifacts are detected and ignored. SEP has been validated with archived ECG signals and testing on human subjects. The continuous acquisition and unique on-board analytics permit SEP to be used for prolonged monitoring scenarios with automatic alarm generations. SEP's aggressive power management techniques enable it to operate on a single coin battery for up to 250 hours. SEP suppresses transmissions of artifact data, which reduces power consumption.

Claims22

Dependent claims

An electrocardiogram sensor, comprising:

an analog processing component configured to process a signal comprising cardiac electrical activity;
a digitizer configured to create a digital representation of the signal;
a microprocessor, configured to:
receive the digital representation of the signal;
process the digital representation to determine at least one electrocardiographic feature and periods during which the digital representation of the signal represents artifact;
analyze the determined at least one electrocardiographic feature to determine at least heart rate;
and
conditionally generate information packets having a plurality of different information types, the information packets having a respective information type conditionally dependent on at least the determined at least one electrocardiographic feature and the determined periods during which the digital representation of the signal represents artifact;
and
a wireless communication device, under control of the microprocessor, configured to remain in a non-transmitting low power state without transmitting information packets for the periods representing artifact, and to enter a transmitting high power state for transmission of the conditionally generated information packets containing valid statistics for at least the heart rate, and subsequently revert to the low power state after transmission.

7 more elements

A method for operating electrocardiogram sensor, comprising:

processing a signal comprising cardiac electrical activity received from a set of electrodes with an analog signal processing component;
digitizing the processed signal to create a digital representation of the signal;
automatically processing the digital representation to determine at least one electrocardiographic feature and periods during which the digital representation of the signal represents artifact;
analyzing the at least one determined electrocardiographic feature to determine at least a heart rate;
contingently generating information packets having a plurality of different information types, the information packets having a respective information type dependent on at least the determined at least one electrocardiographic feature and the determined periods representing artifact;
and
wireless communicating the information packets, under control of a microprocessor, to remain in a non-transmitting low power state without transmitting information packets for the periods representing artifact, and to enter a transmitting high power state for transmission of the contingently generated information packets containing valid statistics for at least the heart rate, and subsequently revert to the low power state after transmission.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/333,865Filed 28 May 2021 · us provisional application
Priority: 29 May 2020
Published: US 2021/0369173 A12 Dec 2021
Granted: 30 Jan 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

A61B 5/332
Heart-related electrical modalities, e.g. electrocardiography [ECG]: portable devices specially adapted therefor
A61B 5/0006
Characterised by the type of physiological signal transmitted: eCG or EEG signals
A61B 5/02405
Measuring pulse rate or heart rate: determining heart rate variability
A61B 5/0245
Measuring pulse rate or heart rate: by using sensing means generating electric signals, i.e. ECG signals