Defibrillator Training Mode Impedance Verification

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Solution Overview

Problem

Existing external defibrillator training systems are expensive and complex, and lack a simple, low-cost method for verifying proper electrode placement without the need for a mannequin, failing to provide a realistic training experience that closely approximates actual defibrillator procedures.

Innovation Solution

An external defibrillator with a training mode that uses electrodes on a release liner, featuring an energy source, electrode interface, and controller to advance through training states based on impedance measurements, providing notifications for proper electrode placement, and a training apparatus with transparent layers and signal conductors to simulate proper electrode positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional training systems use conductive objects embedded in mannequins or Hall-effect sensors, then electrode placement verification is achieved, but device complexity and cost increase

Engineering Contradiction:

Improveelectrode placement verificationVSAvoidtraining system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the verification function from complex mannequin systems and relocates it to the electrode itself through embedded conductive objects. This allows the electrode to self-verify its placement on the release liner without requiring complex external sensing systems, thereby reducing overall device complexity while maintaining verification reliability

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates a simplified copy of the verification function by using conductive objects embedded in the electrode that replicate the electrical connection verification capability. Instead of copying the entire mannequin system, only the essential verification function is copied into the electrode structure

Inventive Principle:

Principle #26Copying

2Adaptability or versatility

If realistic training electrodes with conductive layers are used, then training realism is improved, but verification of proper placement becomes more difficult

Engineering Contradiction:

Improvetraining realismVSAvoidelectrode placement detection

Core Design Contradiction:

Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent embeds conductive verification objects within the conductive attachment layer of the electrode, creating a nested structure. The conductive object is hidden within the realistic-looking electrode material, allowing the electrode to maintain its realistic appearance while containing the verification function internally

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The conductive object embedded in the electrode acts as an intermediary element that bridges the gap between the realistic electrode structure and the verification requirement. It provides a reliable electrical connection point that can be detected by the training device without compromising the electrode's realistic appearance or functionality

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If training mode simulates actual defibrillation procedures, then training effectiveness is improved, but risk of accidental shocking increases

Engineering Contradiction:

Improvetraining effectivenessVSAvoidaccidental shocking risk

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent requires verification of proper electrode placement on the release liner before allowing the training device to progress to states that simulate actual defibrillation procedures. This preliminary verification action ensures that subsequent training steps are safe and effective, preventing accidental shocking while maintaining training realism

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

Enables interactive and realistic training for external defibrillator operators, ensuring proper electrode placement without the need for a mannequin, while maintaining safety by preventing accidental shocking through impedance-based state transitions.

Implementation Method 1

a state identifier, identifying, when the electrode is electrically coupled to the electrode interface, a degree of electrical connectivity along an electrical path including the electrode

Methodology Applied

Scientific EffectImpedance measurement: Electrical Resistance

Data Source

PatentUS7715913B1External defibrillator with training mode and method of use

Publication Date: 2010.05.11 EVEREST ACQUISITION ENTITY LLC

AI summary

A method and apparatus for training a user to operate an external defibrillator, usable in a therapy or training mode, which includes an energy source; an electrode interface responsive to an electrode arrangeable on a release liner and configured for placement on a subject; and an energy delivery system operable to selectively deliver electrical energy from the energy source to the electrode via the electrode interface. The method includes: when the electrode is coupled to the electrode interface, receiving an input signal from the electrode, prior to placement of the electrode on the subject; based on the input signal, identifying a degree of electrical connectivity along an electrical path including the electrode; based on the determined degree of electrical conductivity, advancing the external defibrillator from a first training state to a second training state; and issuing a training state notification indicating advancement from the first training state to the second training state.