Foot Insert Incline for Non-Invasive Toe Walking Prevention

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Solution Overview

Problem

Current treatments for toe walking, such as surgical interventions and physical therapy, are invasive, uncomfortable, and have high recurrence rates, necessitating a less traumatic and more effective solution.

Innovation Solution

A toe walking prevention device in the form of an insert positioned between the ball of the foot and the base of the metatarsals, made of a rigid material with an incline, that makes it uncomfortable to place weight on the ball of the foot, promoting a normal heel-toe gait pattern and providing proprioceptive input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If surgical interventions or serial casting are used to treat toe walking, then the effectiveness of preventing toe walking is improved, but the trauma and discomfort to the patient increase

Engineering Contradiction:

Improveeffectiveness of toe walking preventionVSAvoidtrauma and discomfort to patient

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary device (the insert with dome-shaped protrusion) positioned between the ball of the foot and the shoe insole. This intermediary structure provides tactile feedback and proprioceptive input to remind the child to activate correct muscles and get off their toes, preventing toe walking without requiring invasive surgical interventions or uncomfortable serial casting.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If invasive treatments like Botox therapy or surgery are applied, then the immediate correction of toe walking is achieved, but the recurrence rate increases

Engineering Contradiction:

Improveimmediate correction of toe walkingVSAvoidrecurrence rate of toe walking

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The insert provides continuous tactile feedback and proprioceptive input to the child's foot. The dome-shaped protrusion creates a tactile cue that reminds the child to activate the correct muscles and maintain proper gait. This ongoing feedback mechanism helps prevent recurrence by continuously reinforcing correct walking patterns rather than providing one-time correction through injection or surgery.

Inventive Principle:

Principle #23Feedback

3Reliability

If the insert is made with a higher incline to better prevent toe walking, then the effectiveness increases, but the discomfort to the child increases

Engineering Contradiction:

Improveeffectiveness of toe walking preventionVSAvoidcomfortability for the child

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The insert features a localized dome-shaped protrusion rather than a uniform incline across the entire surface. This concentrated tactile cue provides effective proprioceptive input at the specific location needed (under the ball of the foot) while minimizing overall discomfort. The local quality approach allows the insert to be effective without requiring a steep overall incline that would cause excessive discomfort.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12582193B2Toe walking prevention device

Publication Date: 2026.03.24 2 STEPS AHEAD LLC

AI summary

A toe walking prevention device relates to an insert that is solid and includes an incline on the dorsal portion of the insert that rises from the proximal portion to the distal portion. The insert is configured to be used to prevent or treat toe walking by making it uncomfortable for a person to walk on his or her toes.