CPR Mannequin Clicker Feedback Mechanism

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

CPR training mannequins lack effective feedback mechanisms to ensure correct chest compression depth, making it difficult for rescuers to achieve the recommended compression depths as per the American Heart Association guidelines, especially in emergency situations.

Innovation Solution

A single-use mannequin with a compression depth feedback mechanism that includes orthogonally extending bridges connected by rubber bands, actuating a clicker device to produce a noise when the correct compression depth is reached, simulating the human torso and providing audible feedback during training.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional CPR training mannequins are used without feedback mechanisms, then the training setup is simple and cost-effective, but the trainees cannot accurately achieve the recommended chest compression depth

Engineering Contradiction:

Improvechest compression depth measurementVSAvoidmannequin structure complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism using bridges, rubber bands, and a clicker device that provides audible feedback when the correct compression depth is reached. The bridges are positioned to be actuated by the compression surface, and when compressed sufficiently, they activate the clicker to produce a clicking sound, informing the trainee that the proper depth has been achieved.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent uses bridges as intermediary mechanical elements that transfer the compression force from the trainee's hands to the clicker device. The rubber bands serve as intermediaries that store and release mechanical energy, enabling the bridges to return to their original position after compression and facilitating the activation of the clicker mechanism.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If no feedback mechanism is provided, then the mannequin is easier to operate, but the trainees lack immediate auditory feedback on proper compression force and depth

Engineering Contradiction:

Improvetraining effectivenessVSAvoidmannequin operation simplicity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

While the patent primarily uses auditory feedback through the clicker device, the principle of providing immediate sensory feedback is applied. The clicking sound serves as an immediate auditory signal to the trainee, analogous to color change indicators in other systems, providing real-time information about compression depth without requiring complex electronic displays or sensors.

Inventive Principle:

Principle #32Color changes

3Manufacturing precision

If a feedback mechanism is added to the mannequin, then compression depth accuracy is improved, but the device complexity and manufacturing cost increase

Engineering Contradiction:

Improvecompression depth indication accuracyVSAvoidmannequin manufacturing simplicity

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent employs simple, inexpensive mechanical components such as cardboard or plastic bridges, rubber bands, and a basic clicker device. These components can be easily manufactured and assembled, and the entire feedback mechanism can be disposed of after use, eliminating the need for expensive electronic sensors, processors, or power sources while still providing accurate compression depth indication.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent replaces complex electronic feedback systems with a purely mechanical solution. Instead of using electronic sensors, microcontrollers, and display screens to indicate compression depth, the invention uses mechanically actuated bridges and rubber bands that directly trigger a clicker device, providing feedback through mechanical motion and acoustic sound.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 feedback mechanism ensures that rescuers can accurately achieve the recommended chest compression depth, enhancing the effectiveness of CPR training by providing immediate auditory feedback on proper compression force and depth.

Implementation Method 1

a first bridge 209 and second bridge 211... joined by a resilient member, such as a rubber band 210

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

allowing the bridges to actuate a clicker device 215 to produce a noise, such as a clicking sound

Methodology Applied

Scientific EffectMechanical to acoustic energy conversion:

Data Source

PatentUS10482791B2Single use mannequin having chest compression feedback mechanism for use in simulated cardiopulmonary resuscitation (CPR) training

Publication Date: 2019.11.19 PROTRAININGS LLC

AI summary

A mannequin (200) including a chest compression feedback mechanism for use in simulated cardiopulmonary resuscitation (CPR) training includes a box (203) for simulating a human chest such that a head (201) is connected to one side of the box (203). A mechanical noise generator (215) is positioned within the box (203) for making an audible sound when force is applied to a predetermined area of the box during simulated chest compressions. This sound indicates to the teacher and/or student that a required compression depth has been met during CPR training.