Lever Nail Correction Tool for Curled and Ingrown Edges
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Solution Overview
Problem
Conventional nail correcting methods using restoration force are ineffective on nails with curled edges or those deformed into the skin.
Innovation Solution
A plate-shaped nail correcting tool with a curved and straight part, utilizing the principle of leverage to separate the nail edge from the skin by applying force through a fulcrum and point of effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a small piece with restoration force is attached to the nail surface, then the nail shape can be gradually corrected to a normal form, but the method cannot effectively correct nails with curled edges or nails deformed to bite into skin
Solution Approach 1:
The nail correcting tool is divided into three functional segments: a curved part (first portion) for engaging the nail lateral edge, a middle portion acting as a fulcrum, and a straight part (second portion) for applying correction force. This segmentation allows the tool to handle highly deformed nails by distributing the correction mechanism across distinct functional zones, enabling effective treatment of curled edges and ingrown nails that single-structure tools cannot address
Solution Approach 2:
The curved part of the nail correcting tool features a convex curvature on the side contacting the nail, matching the natural curvature of the nail lateral edge. This curved geometry enables the tool to properly engage and lift curled nail edges, providing the necessary mechanical advantage to correct severe deformations including ingrown nails, whereas straight-edged tools fail to conform to the nail's three-dimensional surface geometry
2Ease of operation
If a small piece with restoration force is used, then the correcting method is simple to apply, but it cannot generate sufficient force to separate curled nail edges from skin
Solution Approach 1:
The curved part of the nail correcting tool features a convex curvature on the side contacting the nail lateral edge, matching the natural curvature of the nail. This curved geometry enables proper engagement with curled nail edges while the lever structure amplifies the correction force, solving both the simplicity of application and sufficient force generation
Solution Approach 2:
The middle portion of the nail correcting tool serves as a fulcrum (intermediary element) between the curved part engaging the nail edge and the straight part applying correction force. This fulcrum mechanism amplifies the correction force applied by the user, enabling separation of deeply embedded nail edges from skin while maintaining ease of operation through simple manual pressure on the straight portion
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
Effectively corrects highly deformed nails, including those with curled edges or ingrown into the skin, using a combination of leverage and adhesive application.
Implementation Method 1
with the end as a point of action, a point on the curved part away from the end as a fulcrum, and a point on the straight part as a point of effort, applying a force to the point of effort and thereby separating the lateral edge of the nail from skin by principle of leverage
Implementation Method 2
an adhesive layer made of a light-curable adhesive or a two-component adhesive
Data Source
AI summary
A nail correcting tool to effectively correct highly deformed nails is described herein. This nail correcting tool has a top surface and a bottom surface, and the bottom surface has a curved part and a straight part. In a state in which the end of the curved part is placed against the lateral edge of the nail, making the point of action to be said end, the fulcrum to be a point on the curved part away from said end, and the point of effort to be a point on the straight part, a force is applied to the point of effort and the lateral edge of the nail is thereby separated from the skin by the principle of leverage.