Multi-Chamber Insole Pressure Sensing for Adaptive Foot Relief
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Solution Overview
Problem
Existing insoles fail to provide personalized and adaptive pressure relief for users with health conditions that affect walking, such as orthopedic ailments, arthritis, vascular disorders, and diabetes, by not allowing selective inflation or deflation of chambers based on user needs.
Innovation Solution
A user device, such as an insole apparatus, with a plurality of chambers that can be selectively inflated or deflated using a pump and selector valve, controlled by circuitry and pressure sensors, allowing for personalized pressure adjustment to enhance walking comfort and ease.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-chamber insole design is used, then the structure is simple, but it cannot provide personalized and adaptive pressure relief for different foot areas
Solution Approach 1:
The insole is divided into multiple independent chambers (first chamber, second chamber, third chamber) that can be selectively inflated or deflated. Each chamber corresponds to different foot areas (heel, arch, forefoot) allowing personalized pressure relief for specific regions without requiring a completely different insole design.
Solution Approach 2:
The insole transitions from a static single-chamber design to a dynamic multi-chamber system with selective inflation/deflation capabilities. The chambers can be dynamically adjusted based on real-time pressure sensor feedback, allowing the insole to adapt to changing user needs and provide personalized pressure relief.
2Adaptability or versatility
If multiple chambers are added to provide selective pressure relief, then personalized pressure relief is achieved, but the device complexity increases
Solution Approach 1:
Pressure sensors act as intermediaries between the user's foot and the control system. The sensors detect pressure in each chamber and provide feedback to the controller, which then selectively activates pumps to inflate or deflate specific chambers. This intermediary layer simplifies the control logic by using sensor feedback to automatically determine which chambers need adjustment.
Solution Approach 2:
The system incorporates pressure sensors in each chamber that continuously monitor pressure levels and provide feedback to the control system. Based on this feedback, the controller selectively activates pumps to inflate or deflate specific chambers, creating a closed-loop control system that automatically maintains optimal pressure distribution without requiring complex user input.
3Stress or pressure
If chambers are inflated to high pressure, then pressure relief effectiveness increases, but comfort and potential harm to the user decreases
Solution Approach 1:
Different chambers are inflated to different pressure levels based on the specific needs of each foot region. The heel chamber, arch chamber, and forefoot chamber can have different pressure settings optimized for their respective anatomical requirements. This local quality approach ensures effective pressure relief in each area without subjecting the entire foot to uniformly high pressure that would cause discomfort.
Solution Approach 2:
Pressure sensors in each chamber continuously monitor pressure levels and provide feedback to the control system. When pressure exceeds a comfortable threshold in any chamber, the system automatically deflates that specific chamber while maintaining appropriate pressure in other chambers. This feedback mechanism prevents harmful high pressure while preserving effective pressure relief where needed.
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 solution provides personalized pressure relief by enabling the user device to adapt to individual needs, improving walking comfort and reducing pressure on affected areas, thereby enhancing mobility and reducing discomfort.
Implementation Method 1
a pump that is: (a) couplable to the user device by a user, the circuitry configured to actuate the pump when the pump is coupled to the user device to selectively inflate or deflate the plurality of chambers to at least two different respective pressures
Data Source
AI summary
A user device (100) is provided. The user device is a footwear device (100a), a medical device (100b), a mattress device (100c), or a seat cushion (100d), and is shaped to define a plurality of chambers (28). Apparatus for use with the user device includes circuitry (34, 152) and a pump (38, 130). The circuitry includes at least one device pressure sensor (36) that measures pressure in the chambers. The pump is couplable to the user device by a user 18, and the circuitry actuates the pump to selectively inflate or deflate the plurality of chambers to at least two different respective pressures. The pump is decouplable from the user device without the decoupling affecting the respective pressures in the chambers. Other applications are also described.