Dynamic Ankle Stabilizer with Variable Tension Cuff
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Solution Overview
Problem
Conventional ankle support methods, such as taping, restrict ankle motion excessively and lose effectiveness due to stretching and loosening, failing to adequately prevent sprains caused by inversion and eversion movements during athletic activities.
Innovation Solution
A dynamic ankle stabilizing apparatus featuring a flexible body member with a semi-rigid cuff and stabilizing strap system that applies variable tension and compression, using angled slots and a pulley-like mechanism to stabilize the ankle and prevent excessive rotation, while maintaining flexibility and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If taping is used to stabilize the ankle, then ankle stability is improved, but ankle motion is excessively restricted and the tape stretches and loosens over time
Solution Approach 1:
The cuff member is designed to be dynamic rather than static. It includes a series of openings that allow the stabilizing strap to pass through, creating a pulley-like effect. As the ankle moves, the cuff dynamically adjusts the strap tension, providing stability when needed while allowing natural motion. This resolves the contradiction by making the support system adaptive rather than fixed.
Solution Approach 2:
The system changes the tension parameter dynamically. The stabilizing strap passes through openings in the cuff member at an angle, creating a mechanical advantage that multiplies the restraining force during inversion/eversion movements. The tension in the strap varies with ankle position, providing maximum stability during harmful motions while maintaining flexibility during normal movement.
2Reliability
If a rigid cuff is used to prevent ankle sprains, then ankle stability is improved, but the apparatus becomes bulky and uncomfortable
Solution Approach 1:
The cuff member is made from a thin, flexible material such as leather or synthetic equivalent, rather than a bulky rigid structure. Despite its thinness, it provides structural function through the series of openings that create the stabilizing strap mechanism. This resolves the contradiction by using a flexible thin film that achieves rigid-like stability through mechanical design rather than material thickness.
Solution Approach 2:
The cuff member is segmented into a series of openings rather than being a solid continuous structure. This segmentation allows the stabilizing strap to pass through and creates multiple leverage points for restraint. The segmented design reduces material usage and bulk while maintaining or enhancing the stabilizing function through the distributed mechanical advantage.
3Force
If a stabilizing strap is positioned at an angle through the cuff member, then the restraining force is multiplied during inversion/eversion, but the strap tension varies with ankle position
Solution Approach 1:
The variable tension is not a defect but a feature of the dynamic design. As the ankle moves into inversion or eversion positions, the angled strap automatically tightens, providing maximum restraining force exactly when needed. During neutral positions, the strap is more relaxed, allowing natural motion. This dynamic tension variation resolves the contradiction by making the force application context-dependent.
Solution Approach 2:
The angled positioning of the stabilizing strap through the cuff openings creates a pre-positioned mechanical advantage. Before harmful inversion or eversion motion occurs, the strap is already configured to multiply restraining forces in the critical directions. The geometry is pre-set to provide automatic resistance to the specific harmful motions that cause sprains.
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 apparatus effectively reduces the risk of ankle sprains by dynamically adjusting tension to match movement, providing increased stability and minimizing the risk of syndesmosis injuries through variable compression and a geometrically accurate fit that resists distal migration.
Implementation Method 1
the cuff member serves as an anchor for the pulley-like effect as the stabilizing strap passes through the slots in the cuff member
Implementation Method 2
the cuff and stabilizing strap dynamically apply a varying force against the body member and ankle during application and use
Data Source
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AI summary
The invention relates to an ankle stabilizing apparatus for minimizing inversion and eversion of the foot, and more specifically, to a body member having at least one cuff member positioned against a cuff portion of the body member, wherein the cuff member defines at least one opening for receiving at least one stabilizing strap such that the cuff and stabilizing strap dynamically apply a variable force against the body member and ankle. The invention promotes variable compression against the ankle upon application and during wear. The invention also resists distal migration of the apparatus during wear.