Resealable Aerosol-Generating Article With Moveable Portion
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Solution Overview
Problem
Existing aerosol-generating systems for nicotine or other medicaments with volatile delivery enhancing compounds have limited usage time due to premature evaporation, as both the medicament and volatile delivery enhancing compound sources are sealed and must be consumed quickly once opened.
Innovation Solution
An aerosol-generating article with a moveable portion that can be rotated to control fluid communication between the medicament and volatile delivery enhancing compound sources and the airflow pathway, allowing for intermittent use by sealing the sources when not in use, thereby reducing evaporation and extending the usage period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the aerosol-generating system uses sealed frangible seals to prevent premature evaporation, then the stability of the medicament and volatile delivery enhancing compound is improved, but the duration of action is limited because the user must consume all contents immediately after breaking the seals
Solution Approach 1:
The system transitions from a static sealed state to a dynamic controllable state. A moveable portion (valve or cap) is introduced that can be positioned in different locations: when positioned in the first location, it allows fluid communication for aerosol generation; when positioned in the second location, it prevents fluid communication and seals the sources. This dynamic positioning resolves the contradiction by allowing the system to maintain stability when not in use while enabling extended duration of action through repeated use cycles.
2Duration of action of moving object
If the aerosol-generating system allows intermittent use with sealing capability, then the duration of action is extended, but the device complexity increases due to additional moveable components
Solution Approach 1:
The moveable portion serves multiple functions simultaneously: it acts as a valve to control fluid communication, serves as a seal to prevent evaporation when in the second location, and can be user-operated for both initial activation and subsequent sealing. By making this single component multi-functional, the patent extends usage duration without proportionally increasing device complexity.
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
This design allows for extended use of the aerosol-generating system by minimizing evaporation and spoilage of the medicament and volatile delivery enhancing compound, enabling users to consume part and then seal for later use, thereby prolonging the device's functionality.
Implementation Method 1
The volatile delivery enhancing compound is reacted with nicotine in the gas phase to form an aerosol of nicotine salt particles that is inhaled by the user
Implementation Method 2
By providing a moveable portion that can prevent fluid communication between each of the medicament and volatile delivery enhancing compound sources and one or both of the airflow inlet and airflow outlet, an aerosol-generating article in accordance with the present invention can reduce or eliminate spoiling and evaporative escape of the medicament and the volatile delivery enhancing compound
Data Source
Figure 1~3
Figure 4~5
AI summary
An aerosol-forming article(12)is provided, the aerosol-forming article (12)comprising an airflow inlet(37)and an airflow outlet (34). The aerosol-forming article (12) further comprises a medicament source (22) and a volatile delivery enhancing compound source (24) positioned between the airflow inlet (37) and the airflow outlet (34), and a moveable portion (32). The moveable portion (32) is moveable between an open position in which the medicament source (22) and the volatile delivery enhancing compound source (24)are in fluid communication with both the airflow inlet (37) and the airflow outlet (34), and a closed position in which each of the medicament source (22) and the volatile delivery enhancing compound source (24) is in communication with only one or none of the airflow inlet (37) and airflow outlet (34).