Aqueous Solution Volatilization Device with Pre-heating Chamber

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Solution Overview

Problem

Existing vaporizing devices face challenges in efficiently producing aerosol microdroplets with diameters less than 4 μm from aqueous solutions, as they require high energy consumption and can degrade substances, and existing solutions using organic solvents may cause irritations or undesirable interactions with the organism.

Innovation Solution

A device comprising a pre-heating chamber with a heating element and a volatilizing element, such as a vibrating mesh, that heats the aqueous solution to a controlled temperature below boiling point, reducing viscosity and producing microdroplets with diameters less than 4 μm, while minimizing energy consumption and avoiding substance degradation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If heating is used to vaporize aqueous solution, then vaporization occurs, but high energy consumption and long vaporization time result

Engineering Contradiction:
Improveenergy consumptionVSAvoidvaporization efficiency
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent utilizes the phase transition of water from liquid to vapor through controlled heating. The heating element heats the aqueous solution to a temperature sufficient for vaporization, leveraging the natural phase change properties of water to achieve efficient vaporization with controlled energy input.

Inventive Principle:
Principle #36Phase transitions

Solution Approach 2:

The device segments the heating process into a controlled local region within the vaporization chamber. The heating element is positioned to heat only the necessary portion of the aqueous solution, reducing overall energy consumption while maintaining effective vaporization rates.

Inventive Principle:
Principle #1Segmentation

2Productivity

If high temperature heating is used to vaporize aqueous solution quickly, then vaporization speed increases, but substance degradation and unwanted chemical reactions occur

Engineering Contradiction:
Improvevaporization speedVSAvoidsubstance degradation
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent controls the heating temperature parameter to remain below the boiling point of water. By adjusting the temperature parameter to an optimal range, the device achieves sufficient vaporization speed while preventing thermal degradation of substances and unwanted chemical reactions that would occur at higher temperatures.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The device maintains continuous controlled heating to sustain vaporization without requiring high temperature spikes. This continuous low-to-moderate temperature heating ensures steady vapor production while avoiding the harmful effects of excessive heat on the substances being vaporized.

Inventive Principle:
Principle #20Continuity of useful action

3Manufacturing precision

If organic solvents are used to reduce viscosity, then droplet size control improves, but irritations and undesirable interactions with the organism occur

Engineering Contradiction:
Improvedroplet size controlVSAvoidirritations
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent changes the physical parameter of viscosity by controlling temperature rather than changing the chemical composition. By heating the aqueous solution to reduce its viscosity, the device achieves better droplet size control and aerosol formation without introducing organic solvents that would cause irritations or harmful interactions.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the chemical approach (adding organic solvents to reduce viscosity) with a physical approach (using heat to reduce viscosity). This substitution eliminates the need for harmful chemical additives while achieving the same goal of improved droplet size control through viscosity modification.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Object-affected harmful factors

If aqueous solutions are used for inhalation, then safety and comfort improve, but difficulty in producing microdroplets with diameter lower than 4 μm increases

Engineering Contradiction:
ImprovesafetyVSAvoidmicrodroplet size
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The patent changes the temperature parameter of the aqueous solution to optimize its viscosity for microdroplet formation. By controlling the temperature to reduce viscosity while maintaining safety, the device enables effective microdroplet generation with diameters below 4 μm using safe aqueous solutions without organic solvents.

Inventive Principle:
Principle #35Parameter changes

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 device effectively nebulizes aqueous solutions into controlled-sized microdroplets with improved efficiency, reduced energy consumption, and enhanced user comfort, while avoiding substance degradation and minimizing organic solvent use.

Implementation Method 1

a pre-heating chamber (12) comprising a heating device (120)

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

a volatilizing element (14) downstream the pre-heating chamber (12) adapted to volatilize the pre-heated liquid composition (S)

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS20240138477A1Device for volatilisation of an aqueous solution and method thereof
Publication Date: 2024.05.02 AVOGEN TECH SA
  • US20240138477A1 patent drawing
  • US20240138477A1 patent drawing
  • US20240138477A1 patent drawing

AI summary

The present invention relates to a device (1) adapted to volatilize a viscous liquid composition (S) into microdroplets (5) comprising a pre-heating chamber (12) upstream a volatilizing element. It further relates to a method of providing an aerosol from a liquid composition, aqueous liquid compositions used for the production of aerosols, and to a kit comprising the same.