Perforated Biomatrix Wound Dressing for Vacuum Therapy

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Solution Overview

Problem

Conventional wound treatment materials, especially those used in vacuum-assisted wound therapy, face issues such as tissue ingrowth into synthetic fillings, poor drainage, and difficulty in monitoring wound healing progress, leading to potential damage to newly formed tissue and delayed healing.

Innovation Solution

The use of wound treatment materials comprising multiple perforated biomatrix layers interconnected by a soluble connecting agent, allowing for adjustable thickness, improved drainage, and easy layer removal without mechanical trauma, with perforations ensuring continuous fluid drainage throughout the material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If synthetic filling materials (polyurethane foam, polyethylene sponge) are used in vacuum therapy, then the wound can be effectively filled and drained, but tissue cells grow into the filling material making removal difficult and requiring surgical intervention

Engineering Contradiction:

Improvewound filling effectivenessVSAvoidremoval difficulty

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The filling material is divided into multiple separate layers (first filling layer, second filling layer, third filling layer) that can be independently removed. This segmentation allows the therapist to remove layers progressively without surgical intervention, solving the problem of difficult removal while maintaining effective wound filling

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent changes the material parameter from synthetic foam to biomatrix material with specific properties (porosity, biodegradability). This parameter change enables the material to be broken down by tissue enzymes, allowing easy removal without surgery while maintaining wound filling effectiveness

Inventive Principle:

Principle #35Parameter changes

2Stability of the object's composition

If conventional synthetic wound dressings are used, then the wound structure is maintained, but the newly formed tissue lacks rigidity and is cosmetically inferior

Engineering Contradiction:

Improvewound structure stabilityVSAvoidtissue quality

Core Design Contradiction:

Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The patent uses composite biomatrix material combining multiple natural components (collagen, gelatin, hyaluronic acid) in specific ratios. This composite structure provides both mechanical stability for wound support and promotes high-quality tissue regeneration with good cosmetic results, resolving the contradiction between structure stability and tissue quality

Inventive Principle:

Principle #40Composite materials

3Difficulty of detecting and measuring

If the wound treatment material needs to monitor healing progress, then the structure should allow observation, but this may compromise the protective function

Engineering Contradiction:

Improvehealing progress monitoringVSAvoidprotection function

Core Design Contradiction:

Difficulty of detecting and measuringVSObject-affected harmful factors

Solution Approach 1:

The biomatrix layers are designed with controlled porosity (30-70% pore volume) that allows wound exudate to pass through while maintaining structural integrity. This porous structure enables visualization of healing progress through the material without compromising its protective function, as the pores are sized to filter while allowing observation

Inventive Principle:

Principle #31Porous materials

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

This solution enhances wound treatment by preventing tissue ingrowth, maintaining effective drainage, and allowing for non-invasive monitoring of wound healing progress, thereby promoting better wound care outcomes and patient comfort.

Implementation Method 1

the connecting means are soluble or separable in an aqueous environment, especially under physiological wound conditions or in wound exudate, and which are sufficiently separated when the wound treatment material is soaked with the exudate

Methodology Applied

Scientific EffectDissolution: Solvation

Implementation Method 2

Perforated, layered wound treatment material... perforations ensuring continuous fluid drainage throughout the material

Methodology Applied

Scientific EffectPermeation: Permeation

Data Source

PatentUS10893982B2Perforated, layered wound treatment material

Publication Date: 2021.01.19 MEDSKIN SOLUTIONS DR SUWELACK AG

AI summary

Wound treatment materials can have at least two perforated biomatrix layers which are interconnected. Methods for preparing such wound treatment materials include the application of adhesives. Treatment of exuding wounds, and vacuum-assisted wound treatment therapy, can be carried out with the wound treatment materials.