Compression Garment Joint Section for Mobility Without Random Wrinkling
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Solution Overview
Problem
Medical compression garments restrict the range of motion of human extremities due to the use of inelastic materials, leading to discomfort and limited joint movement.
Innovation Solution
A medical compression garment with a first material wrapped around the body part and a second, more elastic material fixed on a section, forming controlled wrinkles to enhance flexibility and comfort, particularly at joints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If inelastic materials are used in medical compression garments, then compression force is maintained, but range of motion of joints is restricted
Solution Approach 1:
The compression garment is divided into different sections with different material properties: inelastic material for compression zones and elastic material for joint zones. This segmentation allows each part to perform its specific function - maintaining compression where needed while allowing movement at joints.
Solution Approach 2:
Different parts of the garment have different material characteristics. The joint sections use highly elastic material (5 times more stretchable) to accommodate movement, while other areas use inelastic material to maintain compression force. This local differentiation resolves the contradiction between compression and mobility.
2Ease of operation
If elastic material is added to improve joint mobility, then range of motion is improved, but uncontrolled wrinkles form causing discomfort
Solution Approach 1:
The elastic material is pre-stretched during attachment to the inelastic material. This preliminary stretching creates controlled wrinkles in the inelastic material that are predetermined in position and distribution, preventing random wrinkle formation during movement.
Solution Approach 2:
The stretchability parameter of the elastic material is specifically controlled to be 5 times higher than the inelastic material. This parameter difference allows the elastic material to accommodate joint movement while the pre-stretching controls the wrinkle formation characteristics.
3Ease of operation
If highly elastic material is used at joints, then wearing comfort is improved, but garment robustness may be reduced
Solution Approach 1:
The elastic and inelastic materials are permanently joined through sewing or adhesive bonding. This merging creates a unified garment structure where the weak elastic section is reinforced by attachment to the strong inelastic material, maintaining overall garment robustness while providing comfort at joints.
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 garment allows for improved joint mobility and wearing comfort by minimizing uncontrolled wrinkles and ensuring a good fit around joints, while maintaining robustness and ease of donning.
Implementation Method 1
The second material is more elastic than the first material, in particular wherein the stretchability of the second material is twice as high, in particular five times as high, as the stretchability of the first material
Data Source
AI summary
A medical compression garment for applying compression to a patient's body part may include a first material adapted to be wrapped around the body part, and a second material fixated on a section of the first material. The second material collapses the first material such that the first material forms wrinkles along the section.