Foot Implant with Composite Lining for Fat Pad Atrophy
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Solution Overview
Problem
Plantar fat pad atrophy leads to pain, discomfort, and increased risk of injury due to the deterioration of fat pads in the feet, often caused by genetics, trauma, aging, poorly designed footwear, or diabetes, which existing treatments fail to adequately address.
Innovation Solution
A surgically implanted device that supplements or replaces the fat pads, featuring a non-permeable external lining, internal cavity with filler material, and anchoring mechanisms to prevent migration and rupture, designed to withstand high forces and movements, and can be customized for specific areas of fat pad atrophy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an implant is designed to replace fat pads and withstand high forces, then the implant's strength and durability are improved, but the risk of rupture and migration increases
Solution Approach 1:
The implant is divided into multiple layers with different material properties. The external lining provides structural strength while internal layers with different resonant frequencies dissipate forces through differential movement, reducing stress concentration and preventing rupture
Solution Approach 2:
The implant uses composite materials including layers of materials with different resonant frequencies, flexible matrices, and porous walls. This composite structure provides both the strength needed to withstand forces and the flexibility needed to prevent rupture by allowing controlled deformation
2Strength
If the implant is made rigid to withstand forces, then force absorption capability is improved, but the implant's ability to move with foot motion decreases, leading to migration
Solution Approach 1:
The implant transitions from a static rigid structure to a dynamic system where layers can move relative to each other. The flexible matrix and porous walls allow the implant to deform and move with foot motion while maintaining structural integrity, preventing migration
Solution Approach 2:
The implant uses flexible external linings and thin film structures that can deform under load. These flexible components allow the implant to move with foot motion while the layered composite structure maintains sufficient strength for force absorption
3Ease of operation
If the implant uses a smooth surface for comfort, then patient comfort is improved, but the implant's tendency to migrate increases
Solution Approach 1:
The implant surface has different properties in different locations. The external lining provides a smooth comfortable surface for patient contact, while anchors or anchor points extend from the implant to secure it to surrounding tissue, providing stability without compromising comfort
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 implant provides a long-lasting solution that reduces the risk of further deterioration, alleviates pain, and minimizes disruption to daily life, offering a permanent or extended treatment duration of up to ten years, while reducing strain on the foot and preventing complications like hammertoe development.
Implementation Method 1
The external lining can include one or more layers of material having different resonant frequencies
Implementation Method 2
the implant absorbs forces to replace or supplement the cushioning provided by a patient's fat pads
Implementation Method 3
the implant radiates, dissipates, and/or spreads forces
Data Source
AI summary
An implant can be used for the treatment of fat pad atrophy. The implant can be installed in the ball of the foot, the heel of the foot, the hands, or other areas. The implant can supplement or replace a patient's fat pads. In some instances, the implant can include an implant pad having a non-permeable external lining and an internal cavity enclosed by the external lining. The internal cavity can include a filler material. The implant can include features that resist rupture and/or migration.