Three-Layer Pressure Application Garment for Uniform Compression
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Solution Overview
Problem
Compression systems often cause skin marks and/or skin folds due to uneven pressure distribution and non-smooth surfaces, which compromises the homogeneity of applied pressure.
Innovation Solution
A pressure application garment with a fabric structure comprising three superimposed layers, including an elastic intermediate layer, integrated with interface pressure sensors and a control unit to maintain a predefined pressure value, ensuring homogeneous positive pressure application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If compression systems tighten around the body to apply pressure, then pressure application effectiveness is improved, but skin marks and skin folds are formed due to non-uniform pressure distribution
Solution Approach 1:
The patent applies local quality by creating a multi-layer fabric structure where each layer has specific properties: the intermediate layer provides elasticity to distribute pressure locally, the lower layer provides smooth contact with skin, and the upper layer provides structural support. This localized differentiation of layer properties enables uniform pressure distribution while preventing skin marks at the contact interface.
Solution Approach 2:
The patent uses composite materials by combining three different fabric layers into a single structure. The intermediate elastic layer, lower smooth layer, and upper structural layer work together to achieve both effective pressure application and skin protection. The composite structure allows the elastic intermediate layer to deform and redistribute pressure, preventing the formation of skin marks while maintaining overall compression effectiveness.
2Object-affected harmful factors
If the surface of the compression system is made smooth to avoid skin marks, then skin comfort is improved, but pressure homogeneity may be compromised
Solution Approach 1:
The patent introduces an intermediate elastic layer as a mediator between the smooth lower layer (contacting skin) and the upper structural layer. This intermediate layer acts as a buffer that redistributes pressure uniformly while allowing the lower layer to maintain its smooth skin-friendly surface. The intermediary layer transfers and equalizes forces from the upper layer to the skin interface, ensuring both comfort and pressure homogeneity.
3Device complexity
If a single-layer fabric is used to simplify structure, then manufacturing complexity is reduced, but ability to limit deformation and prevent skin marks is insufficient
Solution Approach 1:
The patent segments the fabric into three distinct layers, each performing a specific function. The lower layer provides smooth skin contact, the intermediate layer provides elasticity and deformation control, and the upper layer provides structural support. This segmentation allows each layer to be optimized for its specific purpose while working together to prevent skin marks through controlled deformation distribution.
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 elastic intermediate layer limits deformation, preventing skin marks and ensuring consistent pressure application, enhancing comfort and effectiveness.
Implementation Method 1
said intermediate layer being between the lower layer and the upper layer and having elasticity in the transverse direction, enabling at least the limitation of the deformation of the lower layer when the upper layer is deformed
Data Source
AI summary
A pressure application relating to a garment that includes at least one active part for applying pressure to at least one body part of a subject and the active part includes at least one bladder fillable with a fluid so as to obtain a homogeneous positive pressure applied to the whole of the corresponding at least one body part of the subject, the pressure application garment also including for the or each active part, at least one interface pressure sensor, a control unit, and a driving module wherein the pressure application garment further includes at least one sheet of a fabric made of at least three superimposed layers.