Bioresorbable Wound Dressing With Degradation-Modulating Wear Time

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Solution Overview

Problem

Existing negative-pressure therapy systems for wound care lack improvements in dressing components that enhance wear-time and modulate the degradation of bioresorbable materials to optimize therapeutic efficacy.

Innovation Solution

Incorporation of a dressing with a bioresorbable component, such as collagen and oxidized regenerated cellulose, and a degradation-modulating component, comprising polymers with functionalized monomeric units, to manage the degradation rate and enhance the wear-time of the dressing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a bioresorbable component is used in the dressing, then the dressing can be removed after degradation without surgical intervention, but the wear-time is limited by the degradation rate of the bioresorbable material

Engineering Contradiction:
Improvedressing removalVSAvoidwear-time
Core Design Contradiction:
Ease of operationVSDuration of action of moving object

Solution Approach 1:

A degradation-modulating component is introduced as an intermediary between the bioresorbable component and the physiological environment. This component controls the degradation rate by modulating fluid communication to the bioresorbable material, allowing extended wear-time while maintaining ease of removal after degradation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the degradation rate of bioresorbable material is increased, then the dressing removes more quickly without surgical intervention, but the wear-time is reduced

Engineering Contradiction:
Improvedressing removalVSAvoidwear-time
Core Design Contradiction:
Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The degradation rate parameter of the bioresorbable material is dynamically controlled by the degradation-modulating component. By adjusting fluid communication parameters, the system can modulate the degradation rate to achieve optimal wear-time while ensuring eventual easy removal

Inventive Principle:
Principle #35Parameter changes

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 extends the wear-time of the dressing, improving the effectiveness of negative-pressure therapy by modulating the degradation of bioresorbable materials, thereby enhancing tissue growth and healing.

Implementation Method 1

a degradation-modulating component configured to modulate degradation of the bioresorbable component

Methodology Applied
Scientific EffectDegradation modulation:

Data Source

PatentUS12491122B2Extended wear-time dressing
Publication Date: 2025.12.09 KCI LICENSING INC
  • US12491122B2 patent drawing
  • US12491122B2 patent drawing
  • US12491122B2 patent drawing

AI summary

As an example, in some embodiments is a dressing that may comprise a manifold, a bioresorbable component, and a degradation-modulating component. The degradation-modulating component may cover two or more surfaces of the bioresorbable component. The degradation-modulating component may be further configured to modulate degradation of the bioresorbable component.