Graduated Compression Garment with Flat Toe Seams and Internal Cushioning
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Solution Overview
Problem
Compression garments for patients with diabetes face challenges in providing effective graduated compression without exacerbating peripheral arterial disease (PAOD) and preventing skin lesions, while existing solutions are often uncomfortable and may worsen blood supply issues.
Innovation Solution
A graduated compression garment with flat toe seams and internal cushioning at critical areas, using a blend of elastic and chitosan-containing fibers, such as Dri-Release and Tencel C, to provide 10-27 mmHg pressure at the ankle and 6-16 mmHg at the calf, ensuring comfort and preventing edema without compromising blood supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compression garments are applied to patients with diabetes and edema, then edema reduction and wound healing are improved, but blood supply may be compromised and skin lesions may occur
Solution Approach 1:
The patent applies different compression pressure levels to different body zones: higher pressure (10-27 mmHg) at the ankle zone and lower pressure (6-16 mmHg) at the calf zone. This graduated compression pattern provides enhanced edema reduction in critical areas while maintaining adequate blood flow in proximal areas, thereby resolving the contradiction between effective compression and blood supply preservation.
Solution Approach 2:
The patent incorporates cushioning elements at critical areas such as the heel, toe, and ankle zones where pressure points are most likely to cause skin damage. This beforehand cushioning protects the skin from compression-related injury while allowing the compression garment to effectively reduce edema, thus preventing harmful effects before they occur.
2Reliability
If compression garments are applied to patients with peripheral arterial disease, then edema may be reduced, but blood supply to lower extremities deteriorates
Solution Approach 1:
The patent implements zone-specific compression pressures that are higher at the ankle (10-27 mmHg) and lower at the calf (6-16 mmHg). This graduated pattern concentrates compression effect where edema is most problematic while minimizing overall compressive load on arterial flow paths, thereby reducing edema without significantly compromising blood supply in PAOD patients.
3Reliability
If traditional compression garments are used, then compression therapy is provided, but wearing comfort is reduced and skin lesions may occur
Solution Approach 1:
The patent incorporates cushioning elements at critical pressure points including the heel, toe, and ankle zones. This beforehand cushioning prevents skin damage and discomfort from concentrated pressure, thereby improving wearing comfort while maintaining the effectiveness of compression therapy in reducing edema.
Solution Approach 2:
The patent uses different fabric densities and cushioning levels in different zones: higher density and cushioning at the ankle and foot zones where pressure points are most problematic, while using lighter construction in less critical areas. This local differentiation maintains compression effectiveness where needed while improving overall wearing comfort.
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 effectively reduces edema, enhances wound healing, and provides antimicrobial and moisture management benefits, suitable for diabetic patients with PAOD, while maintaining comfort and preventing skin damage.
Implementation Method 1
Compression garments are garments which are mainly made from elastic knitted fabric. Their aim is to provide a pressure or compressive force, respectively, to a human body part
Implementation Method 2
The compression garment may comprise a yarn which is a blend of 85-90% hydrophobic fibres and 10-15% hydrophilic fibres, such as Dri-Release® yarn
Data Source
AI summary
The present invention is directed to graduated compression garments for legs having flat toe seams, wherein the pressure value at the ankle zone (1) is of about 10-27 mmHg and at the calf zone (2) about 6-16 mmHg, wherein at least an achilles section, heel section, toe section and/or a foot sole section is cushioned on the internal side of the garment.