Disposable ECG Recorder With Sealed Flexible-Patch Connection

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Solution Overview

Problem

Existing semi-disposable ECG recorders in the prior art suffer from poor use convenience, poor information security, poor connection stability, and complex processes and a low yield rate in manufacturing, and existing semi-disposable ECG recorders in the prior art often have problems such as complex processes and a low yield rate in manufacturing, and existing fully-disposable ECG recorders in the prior art often have problems such as complex processes and a low yield rate in manufacturing, and existing fully-disposable ECG recorders in the prior art often have problems such as complex processes and a low yield rate in manufacturing, and existing fully-disposable ECG recorders in the prior art often have problems such as complex processes and a low yield rate in manufacturing.

Innovation Solution

The fully-disposable ECG recorder is designed with a shell and a flexible patch that are fixed together, eliminating the need for assembly or disassembly, and is completely discarded after use. The signal processing unit is housed in a closed shell, ensuring sealed electronic components without heat laminating or heat sealing, and the connecting end of the flexible electrical path is bent to facilitate assembly and improve yield rate.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a reusable ECG recorder is used, then manufacturing cost and disposal cost are reduced, but cleaning and sterilization processes are required which increase time loss and operational complexity

Engineering Contradiction:
Improvemanufacturing costVSAvoidcleaning and sterilization time
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The patent applies the disposable principle by providing a fully disposable ECG recorder that is used once and then discarded. This eliminates the need for cleaning and sterilization processes entirely, resolving the time loss associated with reusable device maintenance. The disposable unit includes all necessary components (housing, electrodes, battery, memory) that are discarded after a single use, ensuring no cross-contamination between patients.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Loss of time

If a disposable ECG recorder is used, then cleaning and sterilization time is eliminated, but manufacturing cost and disposal cost increase

Engineering Contradiction:
Improvecleaning and sterilization timeVSAvoidmanufacturing cost
Core Design Contradiction:
Loss of timeVSEase of manufacture

Solution Approach 1:

The disposable ECG recorder is segmented into multiple functional components: housing with integrated circuit board, separate electrode assemblies with conductive gel, battery compartment, and memory storage. This segmentation allows each component to be optimized for single-use performance while enabling cost-effective manufacturing through specialized production techniques for each module, which are then assembled into the complete disposable unit.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The disposable ECG recorder integrates multiple functions into a single unit: patient identification, ECG signal acquisition from multiple leads, real-time monitoring, data storage in memory, and wireless transmission capability. This multi-functionality is achieved within a compact disposable form factor by integrating these functions onto a single circuit board and combining them with the electrode assemblies, eliminating the need for separate devices for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If conventional ECG equipment is used, then measurement precision can be maintained, but device complexity and space requirements increase

Engineering Contradiction:
ImproveECG measurement precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges multiple ECG recording channels and functions into a single integrated disposable unit. The circuit board incorporates multiple analog front-ends for simultaneous ECG lead recording, digital signal processing for noise filtering and arrhythmia detection, memory for data storage, and wireless communication capabilities all in one compact package. This merging maintains measurement precision across all ECG leads while significantly reducing device complexity compared to separate conventional ECG equipment.

Inventive Principle:
Principle #5Merging (Combining)

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

The design enhances user convenience by eliminating assembly, improves connection stability by housing the signal processing unit in a sealed shell, simplifies manufacturing with a non-damaging process, and increases the yield rate of qualified products by ensuring reliable connections and environmental protection.

Implementation Method 1

an adhesive portion having a conductive gel applied thereto

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP4651792B1A fully-disposable electrocardiograph ECG recorder and an ECG monitoring system
Publication Date: 2026.05.13 SOUTH SUZHOU MEDICAL TECH CO LTD
  • EP4651792B1 patent drawingFigure 1~2
  • EP4651792B1 patent drawingFigure 3~5
  • EP4651792B1 patent drawingFigure 6~7

AI summary

The present invention relates to the field of wearable medical equipment, and in particular to a fully-disposable ECG recorder and a monitoring system. The fully-disposable ECG recorder provided in the present invention has a shell and a flexible patch which are fixed together. During use, the ECG recorder does not need assembling/disassembling, and after use, the ECG recorder can be completely discarded, thereby improving the convenience in use. The connecting end of the flexible electrical path extends from the outside of the shell into the closed space inside the shell, and is connected to the signal processing unit in the closed space. Thereby, it can overcome the problems in the prior art, which are caused by the connection position being arranged outside the shell, such as poor connection stability, susceptibility to external environmental influences such as temperature and humidity. In the present invention, the manufacturing/assembling process is simple and the yield rate of qualified products is high.