Multi-Zone Wound Dressing for Isolated Pressure and Instillation

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Solution Overview

Problem

Existing wound dressings lack the ability to apply different instillation therapies and negative pressure cycles to different wound zones, and fail to fluidly isolate these zones effectively.

Innovation Solution

A customizable wound treatment system with separate foam layers and drapes for each wound zone, coupled to a negative pressure source and fluid instillation pump, allowing for independent control of pressure and fluid application to each zone.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single foam layer and drape are used for the entire wound, then the device structure is simple, but different wound zones cannot receive different therapies

Engineering Contradiction:

Improveability to apply different therapies to different zonesVSAvoidstructure with multiple foam layers and drapes

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The wound dressing is divided into multiple foam layers (first foam layer, second foam layer) and multiple drape layers (first drape layer, second drape layer), each covering different zones of the wound. This segmentation allows different therapeutic regimens to be applied to different wound zones simultaneously, resolving the contradiction between versatility and structural simplicity.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If multiple foam layers and drapes are used to isolate wound zones, then different therapies can be applied to different zones, but the device structure becomes complex

Engineering Contradiction:

Improvefluid isolation capability between zonesVSAvoidmultiple isolated foam and drape layers

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The dressing system is segmented into multiple foam layers and drape layers that are fluidly isolated from each other, enabling independent therapeutic control for each wound zone while maintaining overall system integration.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The multiple foam layers and drape layers are nested within each other, with each layer covering and isolating specific wound zones. This nested configuration allows for fluid isolation between zones while maintaining a compact and organized device structure.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Adaptability or versatility

If a single negative pressure source is used for the entire wound, then the device is simple to operate, but different negative pressure cycles cannot be applied to different zones

Engineering Contradiction:

Improveability to apply different negative pressure regimensVSAvoidcontrol of multiple pressure zones

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The negative pressure delivery system is segmented into multiple independent channels, with each channel connected to a specific foam layer and wound zone. This allows the negative pressure source to apply different pressure cycles and regimens to different zones simultaneously, while the system remains relatively easy to operate through centralized control.

Inventive Principle:

Principle #1Segmentation

4Adaptability or versatility

If a single fluid instillation pump is used for the entire wound, then the device structure is simple, but different instillation therapies cannot be applied to different zones

Engineering Contradiction:

Improveability to apply different instillation therapiesVSAvoidfluid distribution system to multiple zones

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The fluid instillation system is segmented into multiple independent channels, with each channel delivering treatment fluid to a specific foam layer and wound zone. This segmentation enables different instillation therapies to be applied to different zones simultaneously, while the pump system remains relatively simple in structure.

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

Enables simultaneous and customizable treatment of multiple wound zones with different therapies, enhancing wound healing by applying tailored negative pressure and fluid instillation protocols.

Implementation Method 1

a negative pressure source pneumatically coupled to the first foam layer and the second foam layer and operable to create a negative pressure at the first zone and the second zone

Methodology Applied

Scientific EffectNegative pressure: Vacuum

Implementation Method 2

a fluid instillation pump fluidly coupled to the first foam layer and configured to instill a treatment fluid to the first zone

Methodology Applied

Scientific EffectFluid instillation: Pump

Data Source

PatentEP3999006B1Wound dressing with multiple treatment zones

Publication Date: 2026.04.01 SOLVENTUM INTELLECTUAL PROPERTIES CO

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Figure 2A

AI summary

A customizable wound treatment system for treating multiple zones of a wound includes a dressing configured for use with a first zone and a second zone of a wound that includes a first foam layer placed over the first zone, a second foam layer placed over the second zone, a first drape layer disposed over the first foam layer and beneath the second foam layer, and a second drape layer disposed over the second foam layer. The customizable wound treatment system includes a negative pressure source pneumatically coupled to the first foam layer and the second foam layer and operable to create a negative pressure at the first zone and the second zone and a fluid instillation pump fluidly coupled to the first foam layer and configured to instill a treatment fluid to the first zone.