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Publication Number
US-11234630-B2
Publication Date
2022-02-01
Expiration Date
Abstract
A cardiac health assessment system and method for use with a handheld electronic device. The cardiac health assessment system includes an electronic device case (EDC), a plurality of electrodes, and a circuit board. The EDC secures the handheld electronic device. The electrodes include a first ECG electrode, a second ECG electrode, and a third electrode. The first ECG electrode is placed on an outer surface of the EDC. The second ECG electrode and the third electrode are placed on each side of the EDC to facilitate a thumb and fingers of a user to be placed on the handheld electronic device. The electrodes capture data indicative of the cardiac health of the user. The circuit board includes a microphonic sensor, an Inertial Measurement Unit (IMU) sensor, and a microcontroller. The microphonic sensor and IMU sensor capture cardiac health data. The microcontroller transmits cardiac health data to the handheld electronic device.
Core Innovation
The disclosed invention relates to a cardiac health assessment system for use with a handheld electronic device that transmits data indicative of cardiac function over a network for remote diagnostic analysis using machine learning. The system includes an electronic device case shaped to position the handheld electronic device within the case, where the case enables cardiac data acquisition for analysis by one or more computing devices.
The system captures multiple types of cardiac signals using a plurality of electrodes and sensor hardware within the case. A first ECG electrode is placed on an outer surface of the case, and a second ECG electrode and a third electrode are placed on the sides of the case to facilitate thumb and fingers placement for secure contact. A circuit board within the case electrically connects the electrodes and includes a microphonic sensor to capture cardiac audio signals, a diaphragm to enhance the cardiac audio signals, and an IMU sensor to capture seismic and auscultation signals, where the IMU sensor includes IMU sensor signal-enhancing material to amplify the seismic and auscultation signals.
Remote diagnostic analysis is performed by receiving representations of sensor and electrode signals in one or more temporal windows and detecting features from portions that fall within each temporal window. The computing device identifies patterns of the features based on at least a trained classification model or a regression model, calculates a probability of whether the portions correspond to a problem with the cardiac health of the user, and estimates one or more of an intracardiac pressure of the user and left ventricular ejection fraction of the user.
Claims Coverage
The independent claim covers three inventive features: a shaped electrode-containing device case, multi-modal cardiac audio and seismic/auscultation sensing with enhancement, and remote machine-learning diagnostic analysis using temporal windows.
Remote machine-learning diagnostic analysis using temporal windows
A handheld electronic device transmits data indicative of cardiac function over a network for remote diagnostic analysis using machine learning, where the computing device receives representations of sensor and electrode signals in one or more temporal windows, detects features from portions within each temporal window, identifies patterns of the features based on at least a trained classification model or a regression model, calculates a probability of whether the portions correspond to a problem with the cardiac health of the user, and estimates one or more of intracardiac pressure and left ventricular ejection fraction.
Electrode case shaped to secure the handheld device and capture ECG with finger placement
An electronic device case shaped to position the handheld electronic device within the case, with a plurality of electrodes including a first ECG electrode placed on an outer surface of the case and a second ECG electrode and a third electrode placed on the sides of the case to facilitate thumb and fingers of a user to be placed on the case to secure the handheld electronic device, wherein the plurality of electrodes capture data indicative of the cardiac health of the user.
Multi-modal cardiac audio and seismic/auscultation sensing with enhancement
A circuit board within the case electrically connected with the plurality of electrodes, including a microphonic sensor to capture cardiac audio signals indicative of cardiac health, a diaphragm to enhance the cardiac audio signals, an IMU sensor to capture seismic and auscultation signals indicative of cardiac health, and IMU sensor signal-enhancing material to amplify the seismic and auscultation signals.
Overall, the claims focus on a shaped electrode-containing device case that captures ECG via finger placement, captures cardiac audio enhanced by a diaphragm, and captures seismic/auscultation signals amplified by IMU signal-enhancing material, with remote machine-learning analysis in temporal windows using trained classification and regression models to output a probability of a cardiac health problem and estimates of intracardiac pressure and left ventricular ejection fraction.
Stated Advantages
Documented Applications
No documented applications found
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