Wearable ECG Patch With Noise-Canceling Circuitry for Long-Term Monitoring

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Solution Overview

Problem

Existing health monitoring devices lack robust and convenient systems for long-term data collection and real-time event monitoring, particularly in detecting intermittent cardiac anomalies and other physiological parameters with high accuracy.

Innovation Solution

A wearable health monitoring device with flexible circuitry and anisotropic conductive adhesive electrodes, integrated with ECG, pulse oximetry, and temperature sensors, capable of continuous data collection and analysis, including a driven right-leg circuit to reduce common mode noise, and a composite adhesive layer to minimize motion artifacts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional health monitoring devices are used, then basic physiological parameters can be monitored, but the devices lack robustness for long-term data collection and real-time event monitoring

Engineering Contradiction:

Improverobustness for long-term monitoringVSAvoidmonitoring duration

Core Design Contradiction:

ReliabilityVSDuration of action of moving object

Solution Approach 1:

The monitoring system is divided into separate functional modules: sensor module for data collection, processing module for real-time analysis, and communication module for data transfer. This segmentation allows each module to be optimized independently for long-term reliability and continuous operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The device uses composite adhesive structures combining conductive and non-conductive materials to create stable electrode-skin interfaces that maintain signal quality over extended periods, enabling reliable long-term monitoring without signal degradation.

Inventive Principle:

Principle #40Composite materials

2Adaptability or versatility

If multiple sensors are integrated for comprehensive monitoring, then more physiological parameters can be detected, but noise interference and motion artifacts increase

Engineering Contradiction:

Improvemulti-parameter monitoring capabilityVSAvoidnoise interference and motion artifacts

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

A composite adhesive layer serves as an intermediary between the sensors and skin, providing mechanical coupling that reduces motion artifacts while the driven right-leg circuit acts as an electrical intermediary to cancel common-mode noise from multiple sensors.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system converts motion artifacts containing physiological information into useful data by using accelerometers to detect movement patterns and correlating them with cardiac and respiratory signals, thereby extracting meaningful physiological parameters even during patient movement.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Quantity of substance

If continuous long-term monitoring is implemented, then more data can be collected, but data management and analysis complexity increases

Engineering Contradiction:

Improvedata volumeVSAvoiddata management complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The processing module performs preliminary analysis and filtering of sensor data in real-time, pre-processing signals to extract key physiological parameters and remove artifacts before data is stored or transmitted, reducing the complexity of subsequent data management.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where processed data is continuously monitored and used to adjust sampling rates and processing parameters, optimizing data management efficiency while maintaining comprehensive monitoring capabilities.

Inventive Principle:

Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables continuous, reliable monitoring of multiple physiological parameters for up to two weeks with efficient data transfer and analysis, reducing noise interference and enhancing the detection of arrhythmias and other cardiac events.

Implementation Method 1

electrodes adapted to contact a human body to detect and monitor human generated voltages

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

a light source and one or more photodetectors, such as LED-photodiode pairs, for optically based oxygen saturation measurements

Methodology Applied

Scientific EffectPhotodetection: Photoelectric Effect

Implementation Method 3

a temperature sensor

Methodology Applied

Scientific EffectThermal detection: Thermocouple

Implementation Method 4

an xyz accelerometer for movement and exertion measurements

Methodology Applied

Scientific EffectGravitation: Gravitation

Implementation Method 5

a circuit that mimics a driven right-leg circuit that may permit reduction in common mode noise

Methodology Applied

Scientific EffectElectrical interference cancellation: Electromagnetic Induction

Data Source

PatentEP3769669B1Health monitoring systems

Publication Date: 2025.11.05 RDS

Figure 1A
Figure 1B~1C
Figure 1D

AI summary

Systems, methods and devices for health monitoring including monitoring systems, methods and/or devices receiving a health signal and/or having at least one electrode or sensor for health monitoring.