Pressure-Activated Insole with Segmented Electrodes
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Solution Overview
Problem
Conventional footwear often fails to provide adequate stimulation to alleviate foot pain and improve blood flow, despite its benefits in preventing issues like corns and fungal infections.
Innovation Solution
An insole with internally located sensors and electrodes that detect pressure and provide isolated or collective electrical stimulation to specific areas of the foot, allowing for customizable and independent or semi-independent stimulation of pressure points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional footwear is used, then basic foot protection is provided, but adequate stimulation to alleviate foot pain and improve blood flow is not provided
Solution Approach 1:
The insole is divided into multiple independent pockets, each capable of sensing and providing electrical stimulation independently. This segmentation allows different regions of the foot to receive customized stimulation, enhancing adaptability while maintaining the protective function of the footwear.
Solution Approach 2:
The insole integrates multiple functions into a single device: it provides mechanical protection, pressure sensing, and electrical stimulation therapy. This multi-functionality resolves the contradiction by adding stimulation capability without requiring separate footwear or devices.
2Reliability
If electrical stimulation is provided to the foot, then foot pain is alleviated and blood flow is improved, but device complexity increases
Solution Approach 1:
The sensor and electrode are nested within each pocket structure, with components integrated into the pocket's internal volume. This nesting approach minimizes the overall insole complexity by organizing multiple functional elements within a unified modular structure.
Solution Approach 2:
The sensor and electrode functions are combined within each pocket, allowing pressure detection and electrical stimulation to be integrated at the same location. This merging reduces the number of separate components and simplifies the overall device architecture.
3Adaptability or versatility
If isolated electrical stimulation is provided to specific pressure locations, then targeted pain relief is achieved, but manufacturing precision requirements increase
Solution Approach 1:
Each pocket is designed with localized sensing and stimulation capabilities tailored to specific foot pressure points. This local quality approach allows targeted therapy at each location while using standardized pocket modules, reducing the need for high-precision custom manufacturing across the entire insole.
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 insole effectively reduces foot pain and enhances blood flow by delivering targeted electrical stimulation, improving foot health and comfort.
Implementation Method 1
The insole is configured to detect and provide isolated electrical stimulation to pressure locations on the insole from the user's foot
Implementation Method 2
The insole is configured to detect and provide isolated electrical stimulation to pressure locations on the insole from the user's foot
Data Source
AI summary
A footwear insole assembly includes individual electrodes situated within an insole configured to activate in response to applied pressure from a user's foot. The insole includes a upper surface wherein a plurality of pockets are formed in the upper surface. A plurality of pressure sensors are located in the insole and are configured to detect a compressive force on the insole. A plurality of electrodes are located within at least one of the plurality of pockets and in communication with the plurality of pressure sensors. A power supply is configured to transmit power to the plurality of electrodes in response to detected pressure from the plurality of pressure sensors.