Water-Sensitive Wound Dressing Scrims With Antimicrobial Layer

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Solution Overview

Problem

Antiseptic compositions for wounds are often sticky and difficult to handle in moist environments, necessitating a need for materials that provide antimicrobial protection and can be fully bioabsorbed during healing.

Innovation Solution

A wound dressing material comprising two water-sensitive scrims made of copolymers with divalent hydroxyethylene and dihydroxybutylene monomer units, with an antimicrobial layer between them, providing antimicrobial protection and bioabsorption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If antiseptic compositions are placed in surgical wounds to prevent infections, then antimicrobial protection is provided, but the compositions become sticky and difficult to handle in moist environments

Engineering Contradiction:

Improveantimicrobial protectionVSAvoidhandling precision

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The wound dressing is divided into separate components: a non-tacky backing layer and a distinct antimicrobial layer containing the antiseptic composition. This segmentation allows the backing to provide structural support without stickiness while the antimicrobial layer delivers infection prevention, resolving the contradiction between reliability and ease of operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A non-tacky intermediate layer or carrier system is introduced between the antiseptic composition and the wound environment. This intermediary prevents the sticky antiseptic from directly contacting moisture in the wound, maintaining handling precision while still providing antimicrobial protection through controlled release or contact.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If antiseptic compositions are used to prevent infections, then antimicrobial protection is achieved, but the materials cannot be fully bioabsorbed during healing

Engineering Contradiction:

Improveantimicrobial protectionVSAvoidbioabsorption capability

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The chemical composition of the antimicrobial layer is modified to use bioabsorbable materials and compounds. By changing the parameters of the antiseptic formulation to include biodegradable carriers and naturally occurring antimicrobial agents, the system provides reliable infection prevention while being fully absorbable during the healing process, eliminating harmful residues.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The wound dressing combines multiple materials with complementary properties: a bioabsorbable antimicrobial layer integrated with a non-tacky backing. This composite structure allows the antimicrobial component to provide protection while both layers are designed to be bioabsorbable, resolving the contradiction between reliability and bioabsorption capability.

Inventive Principle:

Principle #40Composite materials

3Object-generated harmful factors

If water-sensitive fibers are used in wound-contact scrims, then the material can be fully bioabsorbed, but the material may become tacky in moist environments

Engineering Contradiction:

Improvebioabsorption capabilityVSAvoidtackiness

Core Design Contradiction:

Object-generated harmful factorsVSEase of operation

Solution Approach 1:

Different regions of the wound dressing have different properties: the wound-contact scrims use water-sensitive bioabsorbable fibers for ultimate absorption, while the backing layer uses non-tacky materials for handling. This local differentiation allows bioabsorption where needed without introducing tackiness in handling areas, resolving the contradiction between bioabsorption capability and ease of operation.

Inventive Principle:

Principle #3Local quality

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 material offers effective antimicrobial protection and bioabsorption, treating a wide range of microbial afflictions while being non-tacky and easily absorbed by the body.

Implementation Method 1

the first water-sensitive fibers comprise a first copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units

Methodology Applied

Scientific EffectWater swelling: Absorption (physical)

Implementation Method 2

the term 'water-sensitive' means water swellable and/or water-soluble

Methodology Applied

Scientific EffectWater solubility: Solvation

Data Source

PatentUS12433794B2Wound dressing material and methods of making and using the same

Publication Date: 2025.10.07 SOLVENTUM INTELLECTUAL PROPERTIES CO

AI summary

A wound dressing material comprises first and second wound-contact scrims, and an antimicrobial layer disposed therebetween. The wound-contact scrims comprise water-sensitive fibers comprising a copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units. The wound dressing material may be contacted with an exposed surface of a wound. A method of making the wound dressing material is also disclosed.