Inline Vaporizer for Ventilator Humidifier Condensation Control

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Solution Overview

Problem

Conventional ventilator humidifier systems face inefficiencies due to the need for additional energy from a second heater in the gas line, prolonged start-up times, difficulty in measuring or adjusting humidity, and safety risks from external heaters, which also lead to condensation issues and reduced efficiency.

Innovation Solution

An inline vaporizer system with a heating device integrated within the carrier gas line, controlled by a sensor and controller to maintain optimal vaporization, eliminating the need for external heaters and reducing energy consumption by ensuring efficient heat transfer directly to the fluid and gas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a second heater is added along the second feed line to prevent condensation, then condensation is reduced, but energy consumption increases

Engineering Contradiction:

ImprovecondensationVSAvoidenergy consumption

Core Design Contradiction:

Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The patent combines the first heater and second heater into a single integrated heating assembly positioned within the water vessel. This merging eliminates the need for separate heating components and reduces overall energy consumption by optimizing heat distribution directly at the water source, preventing condensation without requiring additional heating along the feed line.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces an insulating material as an intermediary between the heating assembly and the water vessel wall. This intermediary reduces heat loss to the surrounding environment, improving thermal efficiency and reducing the energy required to maintain vaporization, thereby preventing condensation with lower energy input.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of manufacture

If the heater is positioned outside the first feed line, then manufacturing is simplified, but heat loss to ambient air increases

Engineering Contradiction:

Improveheater positioningVSAvoidheat loss

Core Design Contradiction:

Ease of manufactureVSLoss of energy

Solution Approach 1:

The patent positions the heating assembly within the water vessel, nesting the heating function inside the existing vessel structure. This nested configuration minimizes the exposed surface area of the heater to ambient air, reducing heat loss while maintaining ease of manufacture by utilizing the existing vessel geometry.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Ease of manufacture

If the heater is positioned outside the first feed line, then installation is simplified, but safety risks increase

Engineering Contradiction:

Improveheater installationVSAvoidsafety risks

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The heating assembly is nested within the water vessel, which provides inherent safety by enclosing the hot heating elements within the water environment. This configuration reduces safety risks such as burns and fire hazards while maintaining simple installation by integrating the heater into the existing vessel structure during manufacturing.

Inventive Principle:

Principle #7Nested doll (Nesting)

4Ease of operation

If the heater is positioned far from the patient, then system operation is simplified, but vapor condensation increases

Engineering Contradiction:

Improvesystem operationVSAvoidvapor condensation

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent merges the first heater and second heater into a single heating assembly positioned within the water vessel, creating a unified heating system that efficiently vaporizes water at the source. This combination prevents condensation by ensuring adequate heating without requiring the heater to be positioned near the patient, maintaining simple system operation.

Inventive Principle:

Principle #5Merging (Combining)

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 inline vaporizer system enhances energy efficiency, reduces start-up time, allows precise control of humidity, and minimizes condensation, providing a safer and more effective method for vaporizing fluids within the carrier gas stream.

Implementation Method 1

a heating device having an outlet, wherein the fluid is heated to a vapor and is released at the outlet of the heating device

Methodology Applied

Scientific EffectVaporization: Evaporation

Implementation Method 2

A carrier gas within the carrier gas line flows past the outlet of the heating device to mix and form a vapor and carrier gas mixture

Methodology Applied

Scientific EffectDiffusion and convection mixing: Convection

Implementation Method 3

controlled by a sensor and controller to maintain optimal vaporization

Methodology Applied

Scientific EffectThermal control: Heating

Data Source

PatentUS7938113B2Inline vaporizer

Publication Date: 2011.05.10 PARI RESPIRATORY EQUIPMENT INC

AI summary

An inline vaporizer disposed in a carrier gas line vaporizes a fluid and adds such vaporized fluid to a carrier gas that flows within the carrier gas line. The vaporizer includes a reservoir or wick that transfers a fluid to a vaporizing element that is adjacent to the reservoir or wick. The vaporizer releases a vapor into the carrier gas line so that the carrier gas flows past the vaporizer to form a vapor and carrier gas mixture.