Pediatric Dosing Dispenser Anti-Suction Valve Design
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Solution Overview
Problem
Existing fluid storage and dispensing packages lack effective child-resistant mechanisms to prevent accidental fluid removal, particularly through suction, which can be hazardous for young children.
Innovation Solution
A package design featuring a dosing dispenser with a child-resistant closure system that includes an anti-suction valve with airflow recesses and a rotatable outer cap, preventing sufficient suction by allowing airflow and requiring a specific force to unlock and remove the cap, thereby blocking fluid access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple cap closure is used, then ease of operation is improved, but child-resistant protection deteriorates
Solution Approach 1:
The closure is divided into two separate caps: an inner cap that threads onto the bottle and an outer cap that rotates relative to the inner cap. This segmentation allows the outer cap to provide child-resistant protection through a complex rotation mechanism while the inner cap provides the basic sealing function, enabling differentiated functionality that balances safety and ease of use for adults.
Solution Approach 2:
The outer cap is designed to rotate dynamically relative to the inner cap during the unlocking process. This dynamic movement creates a multi-step mechanism that requires specific rotational motion to disengage, providing child-resistant protection while allowing adults to easily open it by following the intended rotation sequence.
2Reliability
If a tight seal is formed at the mouth, then fluid containment is improved, but suction resistance deteriorates
Solution Approach 1:
The anti-suction valve features localized airflow recesses at specific positions on its surface, creating areas of different functional quality. The majority of the valve surface maintains a tight seal for fluid containment, while the localized recesses provide controlled airflow paths that prevent sufficient suction vacuum from forming, thus balancing sealing effectiveness with suction resistance.
Solution Approach 2:
The anti-suction valve incorporates airflow recesses that function similarly to porous structures by providing multiple small pathways for air flow. These recesses allow air to pass through while preventing the formation of a complete vacuum seal, enabling the valve to maintain fluid containment while resisting suction forces through distributed airflow channels.
3Object-affected harmful factors
If the closure is made difficult to remove, then child-resistant protection is improved, but ease of operation deteriorates
Solution Approach 1:
The outer cap is pre-configured with a rotation mechanism that, when activated in the correct sequence, automatically disengages the locking feature. This preliminary design of the rotation path and disengagement mechanism allows adults to easily open the closure by simply rotating the outer cap, while the complex initial locked state prevents children from opening it without knowing the specific rotation sequence.
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 solution effectively restricts children from removing fluid through suction, ensuring safety by minimizing the formation of a complete seal and requiring intentional use of a syringe for fluid retrieval, thus preventing accidental ingestion.
Implementation Method 1
The airflow recesses are configured to minimize formation of a complete seal between a child's mouth and the upper surface so that sufficient suction to remove fluid through the fluid passageway is blocked
Implementation Method 2
sufficient suction to remove fluid through the fluid passageway is blocked
Data Source
AI summary
A package that is configured to store and dispense fluids. The package includes a container and a dosing dispenser for closing an opening to the container. The dosing dispenser includes a closure removably coupled to the container and an anti-suction valve fixed to the container that is configured to minimize formation of a complete seal between a user's mouth and an upper surface of the anti-suction valve so that sufficient suction to remove fluid from the container is blocked.