Handheld Three-Lead ECG for Automatic Cardiac Risk Assessment

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Solution Overview

Problem

Existing cardiac diagnostic devices are complex, require professional medical interpretation, and are not suitable for self-diagnosis by patients experiencing symptoms of serious cardiac conditions like AMI, lacking the ability to record cardiac signals without cables and provide immediate clinical advice.

Innovation Solution

A self-contained, handheld device that records three-dimensional cardiac signals using orthogonal leads without cables, integrates patient-entered risk factors and symptoms, and provides automatic diagnostic advice based on a scoring model, including a user interface for data entry and real-time risk assessment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional cardiac diagnostic devices are used, then professional medical interpretation is provided, but the devices are complex and require multiple components making them unsuitable for self-diagnosis

Engineering Contradiction:

Improvecardiac condition diagnosis accuracyVSAvoiddevice structure complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple functions (ECG recording, risk factor assessment, symptom evaluation, and automated diagnostic interpretation) into a single handheld device. The device integrates three-lead ECG capability with automated analysis algorithms that interpret cardiac signals and provide diagnostic advice without requiring professional medical staff, thus resolving the contradiction between diagnostic accuracy and device complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The device enables patients to perform self-diagnosis by automatically interpreting their own cardiac signals. The automated diagnostic system analyzes ECG data, combines it with patient-entered risk factors and symptoms, and provides diagnostic advice independently without requiring external medical professionals, making the complex diagnostic function accessible to ordinary users.

Inventive Principle:

Principle #25Self-service

2Measurement precision

If professional medical interpretation is required, then accurate cardiac diagnosis is provided, but immediate clinical advice is not available to patients experiencing symptoms

Engineering Contradiction:

Improvecardiac risk assessment accuracyVSAvoidtime to receive diagnostic advice

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The device performs preliminary diagnostic analysis immediately when cardiac signals are recorded, combining real-time ECG interpretation with pre-stored risk factor data and symptom assessments. This preliminary action provides instant diagnostic advice to patients experiencing symptoms, eliminating the time delay associated with waiting for professional medical interpretation while maintaining diagnostic accuracy through automated algorithms.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If cable-based cardiac signal recording is used, then reliable ECG data is obtained, but the recording process is cumbersome and not suitable for immediate patient use

Engineering Contradiction:

Improvecardiac signal recording reliabilityVSAvoidpatient operation simplicity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent extracts the ECG recording function from traditional cable-based systems and integrates it directly into the handheld device with built-in electrodes. This extraction eliminates the need for external cables and complex setup procedures, allowing patients to immediately record their own cardiac signals by simply holding the device, thus maintaining signal reliability while dramatically improving ease of operation.

Inventive Principle:

Principle #2Taking out (Extraction)

4Adaptability or versatility

If multiple components are used for cardiac diagnosis, then comprehensive assessment is achieved, but the device becomes complicated to handle

Engineering Contradiction:

Improvecardiac condition assessment comprehensivenessVSAvoiddevice handling simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The handheld device is designed as a universal platform that performs multiple cardiac assessment functions including three-lead ECG recording, risk factor evaluation, symptom assessment, and automated diagnostic interpretation. By integrating these diverse functions into a single multi-functional device, the patent achieves comprehensive cardiac condition assessment while maintaining simplicity of operation, as all functions are accessed through a unified user interface without requiring separate components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12402823B2Hand held device for automatic cardiac risk and diagnostic assessment

Publication Date: 2025.09.02 HEARTBEAM INC

AI summary

Method and apparatus for performing automatic cardiac diagnosis. The apparatuses described herein may be handheld devices which enables self-recording of cardiac signals by the patient, including entering relevant data by patients regarding their cardiac history, including cardiac disease risk factors, and/or current conditions and symptoms. Based on recorded cardiac signals, cardiac risk factors and the current symptoms, the apparatus may calculates a cardiac risk score and may provide simplified diagnostic information and actionable instructions to the patient.