Compression Garment Adjustable Pressure via Predefined Folding

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Solution Overview

Problem

Existing compression garments struggle to provide a predictable and controllable pressure profile for various body part sizes, making it difficult to achieve optimal compression therapy, especially for body parts with circular cross sections, due to the dependence on the shape and circumference of the body part.

Innovation Solution

A compression garment made from a single sheet of elastic material with predefined folding possibilities, featuring markings for intuitive and precise adjustment of pressure profiles, allowing for a range of pressure profiles to be easily obtained and applied, regardless of body size, using a material that maintains consistent pressure across different circumferences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If compression garments are made in multiple sizes to accommodate different body part sizes, then pressure consistency across individuals is improved, but device complexity and inventory requirements increase

Engineering Contradiction:
Improvepressure consistencyVSAvoidsize variety
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The compression garment is designed as a universal one-size-fits-all product that can be adapted to different body part sizes through folding configurations. The garment includes predefined fold lines that allow users to create different folding patterns (e.g., single fold, double fold, triple fold) to adjust the compression level and accommodate various circumferences, eliminating the need for multiple size variants while maintaining pressure consistency across different individuals.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Stress or pressure

If the compression garment circumference is varied in the longitudinal direction to create pressure gradients, then pressure distribution along the body part is improved, but manufacturing precision and design complexity increase

Engineering Contradiction:
Improvepressure distributionVSAvoidcircumference variation
Core Design Contradiction:
Stress or pressureVSManufacturing precision

Solution Approach 1:

The garment is divided into multiple sections with predefined fold lines that segment the continuous fabric into controllable zones. Each section can be independently folded to create localized pressure variations along the longitudinal direction. The fold lines act as segmentation boundaries that allow precise control over where pressure gradients occur, simplifying manufacturing compared to continuously varying the circumference while achieving the same pressure distribution effect.

Inventive Principle:
Principle #1Segmentation

3Stress or pressure

If elastic properties are adjusted along the longitudinal direction to achieve pressure gradients, then pressure control is improved, but manufacturing complexity and material cost increase

Engineering Contradiction:
Improvepressure controlVSAvoidmaterial variation
Core Design Contradiction:
Stress or pressureVSEase of manufacture

Solution Approach 1:

Instead of varying the elastic properties of the material itself, the invention changes the geometric parameter (number of layers) through folding. The same uniform elastic material is used throughout, but by folding the garment one, two, or three times in different sections, the effective compression pressure is adjusted. This approach maintains ease of manufacture with uniform material while achieving precise pressure control through geometric transformation.

Inventive Principle:
Principle #35Parameter changes

4Stress or pressure

If bands with hook and loop fasteners are used to control stretching and pressure, then pressure adjustability is improved, but device complexity and ease of operation decrease

Engineering Contradiction:
Improvepressure adjustabilityVSAvoidapplication difficulty
Core Design Contradiction:
Stress or pressureVSEase of operation

Solution Approach 1:

Instead of using fasteners to prevent stretching, the invention inverts the approach by using folding to create controlled stretching. The garment is applied in an unfolded state for easy donning, then folded in place to create the desired compression. The folding mechanism naturally controls the stretching amount through the geometry of the fold, eliminating the need for complex fastening systems while improving ease of operation.

Inventive Principle:
Principle #13The other way round (Inversion)

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 a reliable, cost-effective, and versatile compression garment that can be used on different body parts, ensuring consistent pressure distribution and ease of use, with the ability to adjust pressure profiles to suit various medical and non-medical applications.

Implementation Method 1

A compression garment made from a single sheet of elastic material with predefined folding possibilities

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3247318B1A compression garment for provision of an adjustable pressure
Publication Date: 2021.09.15 PRESSCISE
  • EP3247318B1 patent drawingFigure 1~4
  • EP3247318B1 patent drawingFigure 5~9
  • EP3247318B1 patent drawingFigure 10~16

AI summary

A compression garment for providing an adjustable pressure towards a body part is disclosed. The compression garment comprises a unitary single sheet of elastic material arranged to encircle the full circumference of a body part, such as a limb or the head. The sheet is folded or arranged to be folded in at least one predefined way, so that the folding forms one or more defined overlap(s) forming at least two overlaying layers of the sheet encircling the full circumference of a part of the body part. Hereby, the pressure profile of the garment can easily be adjusted by making use of the garment in different folded configurations. Markings may further be provided to provide guidance towards the predefined ways of folding.