Cushioning Boot with Variable Friction Surfaces
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Solution Overview
Problem
Existing cushioning boots for bedridden patients do not adequately address the issues of comfort and extended wear, often leading to skin ulcers and improper positioning, which can result in further complications.
Innovation Solution
A cushioning boot with a leg engaging portion and a foot engaging portion, featuring padded surfaces, adjustable closure panels made of stretchable materials like spandex, and a high/low coefficient of friction design to secure and orient the leg properly while allowing easy movement, along with guided fastening systems for secure and adjustable fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the boot uses a secure closure system to hold the leg in place, then the leg positioning stability is improved, but the ease of movement and comfort deteriorates
Solution Approach 1:
The boot applies different friction characteristics to different surfaces: the exterior surface has low friction to allow easy sliding on bed linens, while the interior surface has high friction to securely hold the leg in place. This local differentiation of friction properties resolves the contradiction between secure positioning and ease of movement.
2Duration of action of moving object
If the boot provides extended wear for comfort, then the duration of use is improved, but the risk of skin ulcers and pressure points increases
Solution Approach 1:
The boot is pre-padded with cushioning material before the patient wears it. This beforehand cushioning distributes pressure evenly across the leg and foot, preventing pressure points and skin ulcers even during extended wear periods.
3Reliability
If the closure panels are made adjustable and secure, then the fit and support are improved, but the device complexity increases
Solution Approach 1:
The closure panels are made from stretchable materials like spandex, allowing the fit to be adjusted by changing the physical parameter of panel stretch rather than using complex mechanical adjustment mechanisms. This provides reliable, adjustable fit while keeping the device simple.
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 boot provides enhanced comfort and support, preventing pressure points and skin damage by distributing pressure evenly, allowing for extended wear without compromising leg positioning or mobility, thus reducing the risk of ulcers and skin irritation.
Implementation Method 1
the exterior surface having a low coefficient of friction and an interior surface having a high coefficient of friction
Implementation Method 2
The panels are made substantially of stretchable fabric or material, such as spandex
Data Source
AI summary
A cushioning boot for bed-ridden patients. The boot includes a thickly-padded leg engaging portion and foot engaging portion with a front opening for easy insertion of a patient foot and leg. A series of stretchable, adjustable closure panels are removably secured to the boot for positioning and inserted leg in the proper orientation and retaining it in place. The closure panels are provided with guiding in the form of loops secured to the boot. Each closure panel passes through its associated loop for proper positioning.