Break-Apart Portable AED Pads for Rapid Defibrillation

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Solution Overview

Problem

Existing AED devices are large, costly, and require regular maintenance, making them less accessible and increasing the time to deploy life-saving defibrillation.

Innovation Solution

A portable, lightweight, single-use AED device with a separable board and electrode pads that can be quickly deployed using a single motion, utilizing a dual capacitor bank to deliver a biphasic waveform without bulky IGBTs, and integrating with a mobile phone for user guidance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional AED devices are used, then reliable defibrillation function is achieved, but device size and cost increase significantly

Engineering Contradiction:

Improvedefibrillation functionVSAvoiddevice size

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The device is divided into two separable portions: a reusable controller portion containing the control circuitry, battery, and display, and a disposable pad portion containing the electrode pads and minimal circuitry. This segmentation allows the expensive, complex components to be reused while the simple disposable portion can be manufactured at low cost and small size.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The electrode pad portion is designed as a disposable, single-use component that can be manufactured cheaply and discarded after one use. This eliminates the need for maintenance, calibration, and quality assurance of the disposable portion, significantly reducing overall device cost and size while maintaining reliability through the reusable controller.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Reliability

If traditional AED devices are used, then defibrillation capability is provided, but maintenance and calibration requirements increase complexity

Engineering Contradiction:

Improvedefibrillation capabilityVSAvoidmaintenance requirements

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The disposable pad portion eliminates all maintenance, calibration, and quality assurance requirements for that section of the device. Users simply attach new pads when needed, removing the complexity of servicing electronic components while the reusable controller can be professionally maintained infrequently.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The device performs self-diagnosis and self-calibration through the reusable controller, which automatically tests and adjusts parameters when new disposable pads are attached. This eliminates the need for manual calibration and reduces maintenance complexity.

Inventive Principle:

Principle #25Self-service

3Speed

If rapid deployment is achieved through separable design, then deployment speed increases, but device complexity increases

Engineering Contradiction:

Improvedeployment speedVSAvoidseparable structure

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The separable design with two distinct portions (reusable controller and disposable pads) enables rapid deployment by allowing users to quickly attach pre-prepared pads to the controller without complex assembly steps. The clear separation of functions simplifies the user interface and deployment procedure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The disposable electrode pads are pre-assembled and pre-packaged in the portion containing the minimal necessary circuitry, allowing users to simply attach the complete pad assembly to the controller without needing to assemble multiple components during the emergency situation.

Inventive Principle:

Principle #10Preliminary action

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

Enhances accessibility and rapid deployment, reducing the time to administer defibrillation and potentially saving lives by simplifying the device's design and eliminating the need for regular maintenance.

Implementation Method 1

a battery operably connected to the control circuitry and operable to provide electrical charge to the capacitor

Methodology Applied

Scientific EffectBattery (electricity): Battery (electricity)

Implementation Method 2

a capacitor operably connected to the charging circuit and the discharge circuit, wherein the charging circuit is configured to charge the capacitor

Methodology Applied

Scientific EffectCapacitance: Capacitance

Data Source

PatentUS12569693B2Portable single use automated external defibrillator device

Publication Date: 2026.03.10 CELLAED LIFE SAVER PTY LTD

AI summary

There is provided herein a small form factor portable automatic external defibrillator (AED) having a controller, a charging circuit and a discharge circuit to discharge capacitors using a respective pair of electrode pads. The defibrillator may be separable into two portions at a bisection. Each portion may have a respective electrode pad on corresponding upper surfaces thereof for electrical contact with the chest. A circuit completion wire may complete the electric circuit between the two portions. The defibrillator may comprise a peel-off layer covering both adjacent electrodes. The peel-off layer is adhered to the board at peripheral edges thereof. As such, when pressure is applied to the bisection, the board snaps into the two portions and the peel-off layer simultaneously peels from the portions. In this way, the defibrillator may be deployed quickly with a single break apart manoeuvre.