Pacifier Retention Device With Retractable Tether
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Solution Overview
Problem
Existing pacifier retention devices lack durability, reliability, and safety, as they do not automatically retract the cord when the pacifier is released, leading to potential harm and inconvenience.
Innovation Solution
A pacifier retention device comprising a tether with a housing and spool mechanism, where a spiral spring provides tension to automatically retract the tether to its shortest length when the pacifier is removed, preventing it from touching the ground and reducing the risk of the tether being wound around the infant's neck.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a retractable cord mechanism is used to provide easy access to the pacifier, then the convenience and accessibility are improved, but the risk of the cord being wound around the infant's neck or touching dirty material increases
Solution Approach 1:
The spiral spring is pre-loaded to automatically retract the cord when the pacifier is removed from the infant's mouth, preventing the cord from extending too far and potentially being wound around the neck or touching dirty surfaces. This preliminary action of automatic retraction eliminates the harmful effect before it can occur.
Solution Approach 2:
The device uses the natural motion of the infant removing the pacifier to trigger the automatic retraction mechanism. The spiral spring converts the outward motion into inward retraction, allowing the system to self-regulate the cord length without external intervention, thereby maintaining safety while preserving accessibility.
2Reliability
If a manual release mechanism is used to control the cord length, then the device can be adjusted, but the user must continuously monitor and manually adjust the cord, reducing convenience and increasing complexity
Solution Approach 1:
The spiral spring automatically retracts the cord without requiring manual intervention. The mechanism self-regulates based on the natural use pattern of the infant, eliminating the need for continuous monitoring and manual adjustment, thereby improving convenience while maintaining reliable cord length control.
Solution Approach 2:
The system provides automatic feedback by sensing when the pacifier is removed and immediately retracting the cord to the appropriate length. This closed-loop feedback mechanism ensures the cord is always at the correct length without requiring user input or monitoring.
3Stability of the object's composition
If a lock lever mechanism is added to prevent cord unwinding, then the cord stability is improved, but the device complexity and the need for manual intervention increase
Solution Approach 1:
The spiral spring provides automatic retraction without requiring additional lock lever mechanisms. The spring's elastic properties naturally prevent over-unwinding and maintain cord stability through self-regulating tension, eliminating the need for complex manual locking mechanisms while preserving cord stability.
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 device ensures the pacifier remains sanitary and accessible while minimizing the risk of injury from the tether, providing improved safety and convenience by automatically retracting the cord.
Implementation Method 1
A spiral spring or a coil is fixed in the housing, so wherein the tether can be moved under tension between the first and second position
Implementation Method 2
A spiral spring or a coil is fixed in the housing, so wherein the tether can be moved under tension between the first and second position
Data Source
AI summary
A pacifier retention device comprising a tether having a proximal end and a distal end, a housing, a spool with channeled surface, spiral spring, and fasteners attached to the ends of the tether. The proximal and distal ends of the tether are connected to a clothing clip and a loop, respectively. The clip is attached to a piece of clothing while the loop is intertwined with a pacifier, the tether being under constant or configurable tension to prevent unwanted travel of the pacifier when not in use.