Inhaler Shielding Section for Vital Capacity Adaptation
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Solution Overview
Problem
Existing inhalers face challenges in delivering an appropriate amount of aerosol to users with varying vital capacities, as the air inhalation valve either fails to open sufficiently for those with low vital capacity or allows excessive inhalation for those with high vital capacity, and the detachable valve design is cumbersome and prone to damage.
Innovation Solution
An inhaler design featuring a shielding section that allows switching between the presence and absence of the air inhalation valve through simple operations, such as changing the cap body's position or sliding/rotating components, to control airflow and aerosol delivery based on user needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an air inhalation valve is provided to control aerosol intake, then aerosol inhalation is improved for users with large vital capacity, but users with small vital capacity cannot inhale sufficient aerosol because the valve does not open sufficiently
Solution Approach 1:
The patent applies the dynamics principle by making the air inhalation valve detachable rather than fixed. The valve can be attached or detached based on the user's vital capacity needs. Users with small vital capacity can detach the valve to allow free airflow, while users with large vital capacity can attach the valve to control and limit aerosol intake, thus adapting the device to different physiological conditions.
Solution Approach 2:
The patent applies parameter changes by altering the flow resistance parameter through the presence or absence of the valve. When the valve is attached, it increases flow resistance to prevent excessive inhalation. When detached, flow resistance decreases, allowing sufficient aerosol intake for users with limited inhalation capacity. This parameter adjustment enables the device to accommodate different user needs.
2Adaptability or versatility
If the air inhalation valve is made detachable to accommodate different users, then adaptability is improved, but the device complexity increases due to repeated attachment and detachment operations
Solution Approach 1:
The patent applies the merging principle by integrating the attachment and detachment functions into the normal operation sequence of the inhaler. The valve is designed to be attached or detached during routine maintenance or between uses, combining the valve configuration change with existing user interactions with the device, thereby minimizing additional operational complexity.
Solution Approach 2:
The patent applies self-service by designing the valve attachment mechanism to be simple and intuitive, allowing users to perform the attachment and detachment operations themselves without requiring technical assistance. The valve is designed with features that guide proper installation and removal, making the process self-serviceable and reducing the burden on users.
3Adaptability or versatility
If the air inhalation valve is always attached to the device, then aerosol inhalation control is improved, but the valve may be damaged or lost due to repeated operations
Solution Approach 1:
The patent applies beforehand cushioning by designing the valve attachment mechanism to be secure and durable, anticipating potential damage from repeated operations. The connection interface is designed with protective features that prevent misalignment, excessive force, or accidental detachment, thereby cushioning against potential damage or loss before they occur.
Solution Approach 2:
The patent applies the disposable principle by designing the air inhalation valve as a low-cost component that can be easily replaced if damaged or lost. The valve is manufactured using cost-effective materials and production methods, making it economically feasible to replace rather than repair, thus reducing the reliability concern associated with repeated attachment and detachment operations.
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
Enables efficient nebulization of aerosol without burdening the user, ensuring appropriate aerosol delivery for both low and high vital capacity users without the need for repeated attachment and detachment of the air inhalation valve, thus preventing damage and loss.
Implementation Method 1
an air inhalation valve attached to the flow path wall at a portion where the first air inhalation opening is provided, for opening/closing the first air inhalation opening utilizing pressure difference between the flow path and the outside
Implementation Method 2
an atomizing portion provided in the flow path, for atomizing liquid reserved in a reservoir
Data Source
AI summary
An inhaler has a cap body for defining a flow path and having first and second air inhalation openings for introducing outside air into the flow path from the outside; an air inhalation valve for opening and closing the first air inhalation opening by using the difference in pressure between the flow path and the outside; and a shielding section capable of selectively shielding either of the first and second air inhalation openings. The inhaler is configured to be switchable between two states that are a first state where the second air inhalation opening is shielded by the shielding section and outside air can be introduced through the first air inhalation opening by using the pressure difference and a second state where the first air inhalation opening is shielded by the shielding section and communication between the flow path and the outside through the second air inhalation opening is constantly maintained.