Flavor Inhaler Insertion Guide for Low-Friction Aerosol Heating

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Solution Overview

Problem

Existing flavor inhalers lack novel structures for efficiently generating and delivering aerosolized flavors without burning the flavor source.

Innovation Solution

A flavor inhaler with a unique design featuring a heating assembly and an insertion guide member that heats a flavor generating article to vaporize aerosol, while minimizing friction and facilitating easy insertion and removal of the article.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a flavor inhaler is disposed of after the cartridge is emptied, then manufacturing costs and environmental waste are reduced, but the device requires frequent replacement and increases long-term cost and waste

Engineering Contradiction:
Improvemanufacturing costVSAvoidfrequency of replacement
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The inhaler system is divided into two segments: a reusable main body and a disposable cartridge. This allows the expensive electronic components to be reused while only the consumable fluid reservoir is discarded, reducing both manufacturing cost and replacement frequency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Only the cartridge containing the flavor fluid is designed as a disposable component, while the main inhaler device is reusable. This selective disposability reduces long-term costs and waste compared to disposing of the entire device.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Device complexity

If a flavor inhaler is disposed of after the cartridge is emptied, then device complexity is reduced, but environmental harm increases due to electronic waste

Engineering Contradiction:
Improvedevice structureVSAvoidelectronic waste
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

By segmenting the inhaler into reusable and disposable parts, electronic waste is minimized as the electronic components remain in the reusable main body, while only the fluid cartridge is discarded.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The disposable cartridge is designed to contain only the consumable fluid and minimal components, separating it from the electronic components that would otherwise become electronic waste.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Device complexity

If the mouthpiece is cleaned and reused, then device complexity and manufacturing cost are reduced, but bacterial growth and contamination risk increase

Engineering Contradiction:
Improvecleaning requirementsVSAvoidbacterial contamination
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The cartridge containing the mouthpiece is designed as a disposable component that is discarded after use, eliminating the need for cleaning and preventing bacterial contamination without adding complex cleaning systems.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The mouthpiece is extracted as part of the disposable cartridge assembly, separating it from the reusable main body. This allows the mouthpiece to be discarded with the cartridge, eliminating contamination risks.

Inventive Principle:
Principle #2Taking out (Extraction)

4Ease of operation

If the inhaler device is made disposable, then ease of operation and hygiene are improved, but manufacturing cost and environmental waste increase

Engineering Contradiction:
Improvehygiene convenienceVSAvoidmanufacturing cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The inhaler is segmented into reusable and disposable portions, providing the hygiene benefits of a disposable device while reducing manufacturing costs by allowing reuse of expensive electronic components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Only the cartridge is made disposable rather than the entire device, providing hygiene convenience for the consumable portion while avoiding the cost of manufacturing entirely disposable electronic components.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentEP3995013B1Flavor inhaler and insertion guide member
Publication Date: 2026.05.06 JAPAN TOBACCO INC
  • EP3995013B1 patent drawingFigure 1A~1B
  • EP3995013B1 patent drawingFigure 2
  • EP3995013B1 patent drawingFigure 3

AI summary

Provided are a flavor inhaler and an insertion guide member which have novel structures. Provided is a flavor inhaler. The flavor inhaler is used with a rod-like flavor generating article. The flavor inhaler comprises an insertion guide member an opening in which the flavor generating article can be inserted, an inner peripheral surface enclosing an outer periphery of the flavor generating article inserted from the opening, and a ring-like protruding portion that protrudes from the inner peripheral surface to extend over an entire circumference of the inner peripheral surface and abuts on the flavor generating article over the entire circumference of an outer peripheral surface of the inserted flavor generating article. The protruding portion includes, in a circumferential direction of the inner peripheral surface, a portion that changes in a position in the longitudinal direction of the flavor generating article that abuts on the outer peripheral surface of the inserted flavor generating article.