Hydrogen Peroxide Nebulizer for Electromedical Device Sanitization

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Solution Overview

Problem

Existing sanitization methods for electromedical devices, such as medical ventilators, often fail to effectively disinfect internal components without damaging the electronics, and ozone-based methods pose health risks and reduce device lifespan.

Innovation Solution

A sanitizing apparatus and method using a hydrogen peroxide-based nebulizing system that introduces controlled doses of hydrogen peroxide vapor into a sealed reception space, ensuring thorough disinfection of both internal and external components without harming the device's electronics, with a hydrogen peroxide concentration between 4% and 10%.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If ozone-based sanitization method is used, then sanitizing efficiency is improved, but health safety deteriorates and device integrity deteriorates

Engineering Contradiction:

Improvesanitizing efficiencyVSAvoidhealth safety

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical parameters by using hydrogen peroxide with controlled concentration (3-10%) instead of ozone, and controls the physical parameters through multiple doses delivered at specific time intervals (180-300 seconds between doses), maintaining sanitizing effectiveness while eliminating health and device damage risks

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent converts the potential harm of strong oxidants into benefit by using hydrogen peroxide at controlled concentrations that provide effective sanitization without the destructive effects of ozone, turning a potentially harmful chemical approach into a safe and effective solution

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Productivity

If ozone-based sanitization method is used, then sanitizing efficiency is improved, but device integrity deteriorates

Engineering Contradiction:

Improvesanitizing efficiencyVSAvoiddevice integrity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If surface-only cleaning method is used, then operation simplicity is improved, but sanitizing completeness deteriorates

Engineering Contradiction:

Improveoperation simplicityVSAvoidsanitizing completeness

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The patent applies periodic action by delivering multiple doses of hydrogen peroxide vapor at specific time intervals (180-300 seconds between doses) rather than a single continuous treatment, allowing the sanitizing agent to penetrate and disinfect internal components while maintaining simple automated operation through controller management

Inventive Principle:

Principle #19Periodic 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

Achieves a reduction of bacterial contamination by more than 3 Log in a single sanitization cycle, effectively disinfecting internal parts like ventilators' pneumatic circuits and tubes while preserving the electromedical device's functionality and lifespan.

Implementation Method 1

at least one nebulizer device configured for nebulizing a sanitizing product, wherein the at least one nebulizer is located inside the reception space for introducing the nebulized sanitizing product into the reception space

Methodology Applied

Scientific EffectNebulization: Aerosol

Implementation Method 2

achieves a reduction of bacterial contamination by more than 3 Log in a single sanitization cycle

Methodology Applied

Scientific EffectOxidation: Oxidation

Data Source

PatentEP3369437B1Apparatus and method for sanitizing of an electromedical device using nebulised hydrogen peroxide

Publication Date: 2021.02.17 SOL

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Figure 3~4B

AI summary

The present disclosure provides an apparatus (100) for sanitizing of an electromedical device (10). The apparatus (100) includes a housing (110) having a reception space (118) configured for receiving the electromedical device (10), wherein the reception space (118) has a volume, at least one nebulizer device (120) configured for nebulizing a sanitizing product, the at least one nebulizer (120) is located inside the housing (110) or is located outside of the reception space (118) for introducing the nebulized sanitizing product into the reception space (118), and a controller (130) configured for controlling the at least one nebulizer device (120) for introducing a plurality of doses of the nebulized sanitizing product into the reception space (118) during a sanitization process.