Bilateral Post-Op Shoe With Adjustable Vamp and Shape Memory Insoles
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Solution Overview
Problem
Current post-operative foot rehabilitation shoes are unilateral, stiff, and aesthetically unappealing, failing to provide adequate support and comfort for both feet, leading to incorrect walking posture and high costs due to their limited use only on the operated foot and inability to adapt to normal foot size post-recovery.
Innovation Solution
A bilateral orthopedic shoe with a detachable front portion, adjustable vamp, vulcanized rubber sole, and interchangeable orthopedic insoles made of shape memory material, allowing for adaptation to swollen feet and eventual standard fit, enabling comfortable walking and reuse post-recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shoe is designed with a stiff sole structure for support function, then the support function is improved, but the shoe is not adapted for walking
Solution Approach 1:
The shoe is divided into distinct functional components: a stiff outer sole providing structural support, a flexible midsole enabling walking motion, and an orthopedic insole for medical support. This segmentation allows each layer to perform its specific function independently, resolving the contradiction between rigid support and flexible walking capability.
Solution Approach 2:
The shoe employs a composite structure with multiple material layers: a rigid outer sole material for support, a compliant midsole material for flexibility and walking adaptation, and an orthopedic insole material for medical functionality. This composite approach combines the benefits of both stiffness and flexibility in a single shoe design.
2Adaptability or versatility
If the shoe is designed as unilateral (only for operated foot), then it fits the post-surgery foot, but it causes bad posture and incorrect walking
Solution Approach 1:
The shoe design incorporates universal features that allow it to be worn on either the operated or healthy foot. The adjustable vamp and interchangeable insoles provide multi-functionality, enabling the shoe to adapt to different foot conditions and maintain proper posture during bilateral wear, thus resolving the contradiction between specialized fit and general walking applicability.
3Adaptability or versatility
If the shoe is designed with oversized vamp and sole for swollen foot, then it is wearable during surgery, but it cannot be fit comfortably when foot returns to normal size
Solution Approach 1:
The shoe incorporates dynamic adjustment mechanisms including an adjustable vamp that can be modified as the foot swells or returns to normal size. This dynamic adaptability allows the shoe to maintain proper fit and comfort throughout the recovery process, resolving the contradiction between accommodating swollen feet and fitting normal feet.
Solution Approach 2:
The shoe design allows for parameter changes in size and configuration through adjustable components and interchangeable parts. The vamp size, insole thickness, and other parameters can be modified to match the foot's changing dimensions during recovery, maintaining comfort and proper fit at different stages of healing.
4Reliability
If the shoe is designed as traditional orthopedic shoe, then it provides medical function, but it is aesthetically unappealing and unusable after rehabilitation
Solution Approach 1:
The shoe is designed with multi-functionality to serve both medical rehabilitation purposes and aesthetic fashion requirements. The interchangeable insoles provide ongoing medical support while the adjustable vamp and modern design elements maintain aesthetic appeal, allowing the shoe to transition from purely medical use to post-recovery fashion use.
Solution Approach 2:
The shoe design incorporates removable and interchangeable components, particularly the orthopedic insoles, which can be discarded or replaced as rehabilitation progresses. This allows the shoe to transition from a medical device to a fashion item, recovering its value for post-rehabilitation use and eliminating the need to discard it after the medical phase.
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 shoe provides balanced and comfortable walking by accommodating foot swelling changes, allowing use on both feet, reducing costs, and maintaining aesthetic appeal, thus promoting correct posture and psychological well-being.
Implementation Method 1
interchangeable orthopedic insoles made of shape memory material, allowing for adaptation to swollen feet and eventual standard fit
Implementation Method 2
vulcanized rubber sole
Implementation Method 3
vulcanized rubber sole, enabling comfortable walking
Data Source
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AI summary
The present invention relates to a shoe adapted to be worn in the post-surgery period, in particular for but not limited to hallux valgus surgery.