Two-Prong Orthodontic Aligner Removal Tool with Hinge
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Solution Overview
Problem
One-prong orthodontic aligner removal tools lack stability, control, precision, and comfort, increasing the risk of damage and discomfort during removal, and are inefficient and prone to misuse, with limited functionality for both removal and reapplication.
Innovation Solution
A two-prong aligner removal tool with a hinge mechanism, featuring strategically placed tips and extensions that contact both inner and outer ridges and base of the aligner, providing a secure and precise grip through a tweezing motion, allowing for safe and controlled removal and reapplication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a one-prong aligner removal tool is used, then the tool is simple in structure, but the stability and control during removal deteriorates
Solution Approach 1:
The tool is divided into two separate prongs (first and second prongs) that work together to grasp the aligner, with each prong having specific contact regions for different parts of the aligner structure, providing enhanced stability and control compared to a single-prong design
Solution Approach 2:
The tool transitions from a single-point contact approach to a two-dimensional contact system with multiple contact regions distributed across the aligner surface, including contact with the outer surface, inner surface, and base, thereby improving stability through spatial distribution of contact points
2Ease of manufacture
If a one-prong aligner removal tool is used, then the tool is simple to manufacture, but the precision of aligner manipulation deteriorates
Solution Approach 1:
Different regions of the prongs are designed with specific functional qualities: contact regions for grasping, recesses for precise positioning on the aligner base, and textured surfaces for enhanced grip, allowing precise manipulation while maintaining manufacturing simplicity through mold-in features
3Device complexity
If a one-prong aligner removal tool is used, then the tool has fewer components, but the risk of damaging the aligner increases
Solution Approach 1:
The force application is segmented across multiple contact regions on two prongs rather than concentrated on a single point, distributing the removal force evenly across the aligner structure to prevent stress concentration and potential damage
Solution Approach 2:
The tool design incorporates recesses and specifically shaped contact regions that engage with the aligner's base and ridges before removal begins, providing a secure grip that prevents slippage and unintended stress on the aligner material during the removal process
4Ease of manufacture
If a one-prong aligner removal tool is used, then the tool is easier to produce, but the efficiency of aligner removal deteriorates
Solution Approach 1:
The two-prong design with multiple contact regions enables more effective engagement with the aligner structure, allowing for smoother and more controlled removal in a single action, thereby improving efficiency while remaining manufacturable through injection molding
Solution Approach 2:
The tool is designed to perform multiple functions: removing aligners from teeth, placing aligners onto teeth, and handling aligners in containers or cleaners, making it a versatile tool that improves overall workflow efficiency
Data Source
AI summary
A device for removing orthodontic aligners. The device comprises a hinge mechanism that enables a tweezing motion, allowing a wearer to grasp an orthodontic aligner in between two contact regions precisely and easily. Tips and extensions extending from these contact regions ensure comprehensive contact with aligner ridges and bases, while central segments in between them, possibly with textured surfaces, enhance grip. The device's design, including tips having sloped segments, guide the aligner ridges into the tips, ensures a snug fit. Variations include acute or obtuse angles between extensions and central segments for effective aligner positioning, and textured leg surfaces for improved user grip.