Orthopedic Support with Knitted Receiving Channels for Targeted Compression

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Solution Overview

Problem

Generic orthopedic support means with elastic design face challenges in achieving effective compression, correction, and stabilization functions due to undesired movement sequences, and solutions like attaching drawstrings result in increased thickness and manufacturing costs, compromising comfort and aesthetics.

Innovation Solution

Incorporating a non-elastic support band within a receiving channel formed by knitting threads and weft/warp threads in the knitted fabric, which reduces elasticity in specific areas, allowing for targeted compression and support without adding thickness or discomfort, and enabling a single-stage production process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the main body is designed to be elastic to enable easy putting on and body movement, then ease of operation is improved, but the orthopedic support and stabilization function deteriorates due to unfavorable movement sequences

Engineering Contradiction:
Improveease of putting on and body movementVSAvoidorthopedic support and stabilization function
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The support means is divided into elastic non-compression areas and inelastic compression areas. The inelastic areas are segmented into discrete regions where support bands are inserted into receiving channels within the knitted fabric structure, creating localized zones of reduced elasticity that provide stabilization without compromising overall flexibility

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the support means are assigned different elastic properties. The knitted fabric provides elasticity in most areas for comfort and movement, while specific local regions contain inelastic support bands within receiving channels to provide targeted compression and stabilization where orthopedic support is needed

Inventive Principle:
Principle #3Local quality

2Reliability

If drawstrings are attached to limit elasticity in specific areas, then the orthopedic support function is improved, but device complexity and manufacturing costs increase

Engineering Contradiction:
Improveorthopedic support functionVSAvoidstructure with subsequently attached tie straps
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The support bands and receiving channels are integrated directly into the knitted fabric structure during the manufacturing process. The receiving channels are formed as part of the knitting pattern, and support bands are inserted into these channels before the fabric is completed, combining what would otherwise be separate components into a unified structure

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The receiving channels are pre-formed during the knitting process before the support bands are inserted. The knitted fabric is constructed with integrated channels that guide and position the support bands, eliminating the need for subsequent attachment operations and reducing manufacturing complexity

Inventive Principle:
Principle #10Preliminary action

3Stress or pressure

If drawstrings are attached to limit elasticity, then compression function is improved, but thickness increases reducing comfort and aesthetics

Engineering Contradiction:
Improvecompression functionVSAvoidthickness of main body
Core Design Contradiction:
Stress or pressureVSVolume of moving object

Solution Approach 1:

The support bands are nested within receiving channels that are integrated into the knitted fabric structure. The support bands are positioned inside the fabric thickness rather than adding to it externally, allowing compression functionality to be achieved without increasing the overall thickness of the support means

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The knitted fabric itself serves as a flexible thin film structure that contains the support bands within its thickness. The receiving channels are formed within the fabric layers, allowing the support bands to provide compression without requiring additional external layers or attachments that would increase overall thickness

Inventive Principle:
Principle #30Flexible shells and thin films

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 effectively reduces elasticity in orthopedic support means, enhancing compression and stabilization functions while maintaining comfort and aesthetics, allowing for precise adjustment of support and mobility restriction, particularly beneficial for joint support and compression applications.

Implementation Method 1

The main body is designed to be elastic at least in the area of the elastic partial areas in order to be able to put on the orthopedic support means easily and to be able to move the corresponding part of the body surrounded by the support means

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a non-elastic support band, which is not involved in the stitch formation of the knitwear, is inserted into the receiving channel, preferably stretched

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentEP2283795B1Orthopaedic aid and corresponding production method
Publication Date: 2013.06.05 PETER MULLER
  • EP2283795B1 patent drawingFigure 1a~1b
  • EP2283795B1 patent drawingFigure 2
  • EP2283795B1 patent drawingFigure 3

AI summary

The supporting unit e.g. knee brace (10), has a receiving channel provided between an inner side and an outer side of a main body (20) and extending through an elastic portion of the main body. The receiving channel is limited towards the inner side and the outer side of the body by a knitting yarn and a weft yarn of a knitted fiber. Inelastic support bands (40a-40c) are inserted into the receiving channel and are not engaged to knitting formation of the knitting yarn of the main body. An independent claim is also included for a method for manufacturing an orthopedic supporting unit.