Reduced-Pressure Dressing with Tissue-Fixation Element

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Solution Overview

Problem

Current reduced-pressure wound therapy systems face challenges in effectively distributing pressure and fluids to tissue sites while maintaining a secure attachment without causing irritation or requiring external support.

Innovation Solution

A reduced-pressure system comprising a distribution manifold with a porous member and a fluid-permeable substrate, coupled with a tissue-fixation element that creates a sealed space for applying reduced pressure, allowing for fluid distribution and reception while being securely attached to the tissue site without external support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stress or pressure

If a porous pad is used to distribute reduced pressure, then pressure distribution and fluid channeling are improved, but secure attachment to the tissue site is insufficient

Engineering Contradiction:

Improvepressure distributionVSAvoidattachment security

Core Design Contradiction:

Stress or pressureVSReliability

Solution Approach 1:

The patent combines the porous pad (for pressure distribution) with a separate tissue-fixation element (for secure attachment) into a single integrated dressing system. The fixation element is coupled to the porous pad, allowing both functions to work together simultaneously, resolving the contradiction between pressure distribution capability and attachment security.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The dressing system is designed to perform multiple functions: the porous pad provides pressure distribution and fluid channeling, while the tissue-fixation element provides secure attachment to the tissue site. This multi-functional design allows a single system to address both pressure distribution needs and attachment reliability needs.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a tissue-fixation element is added to improve attachment, then attachment security is improved, but device complexity increases

Engineering Contradiction:

Improveattachment securityVSAvoidsystem structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The tissue-fixation element is coupled to the porous pad in an integrated manner, merging two functional components into a unified dressing structure. This integration approach adds the fixation function without requiring a completely separate complex system, thereby limiting the increase in overall device complexity.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If the fixation element surface area is increased to improve attachment, then attachment security is improved, but fluid distribution effectiveness decreases

Engineering Contradiction:

Improveattachment securityVSAvoidpressure distribution effectiveness

Core Design Contradiction:

ReliabilityVSStress or pressure

Solution Approach 1:

The dressing is segmented into distinct functional zones: a tissue-fixation element with larger surface area for secure attachment to the tissue site, and a porous pad with flow channels for effective fluid distribution. This spatial segmentation allows each component to optimize its specific function without interfering with the other, resolving the contradiction between attachment area and fluid distribution effectiveness.

Inventive Principle:

Principle #1Segmentation

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 system enhances tissue growth, accelerates wound healing, and maintains secure attachment to the tissue site, ensuring effective fluid management and pressure distribution while minimizing irritation.

Implementation Method 1

providing reduced pressure to the sealed space... for distributing reduced pressure and receiving fluids

Methodology Applied

Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 2

channels fluids that are drawn from the tissue

Methodology Applied

Scientific EffectFluid flow:

Implementation Method 3

tacking a distribution manifold to the tissue site using a tissue-fixation element

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 4

sealing member for disposing over the distribution manifold to create a sealed space containing the distribution manifold

Methodology Applied

Scientific EffectPressure containment: Physical Containment

Data Source

PatentUS12178954B2Reduced-pressure dressings employing tissue-fixation elements

Publication Date: 2024.12.31 SOLVENTUM INTELLECTUAL PROPERTIES CO

AI summary

A reduced-pressure system for treating a tissue site on a patient includes a distribution manifold that adheres to a tissue site to allow retention without external support. The distribution manifold includes a porous member and a tissue-fixation element. The tissue-fixation element maintains the porous member substantially adjacent to the tissue site while a sealing member is applied. In one instance, the tissue-fixation element is a soluble adhesive that partially covers either the tissue-facing side of the porous member or a tissue-facing side of a fluid-permeable substrate layer that is on the tissue-facing side of the porous member. Other systems, distributions manifolds, and methods are presented.