Dynamic Gas-Flow Wound Dressing Scaffolding Partition

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Solution Overview

Problem

Current wound dressings with dynamic gas flow capabilities do not effectively distribute gas over the wound contour, leading to suboptimal healing outcomes due to the use of foam barriers that increase treatment volume but do not align with the wound's shape, resulting in inefficient gas flow distribution.

Innovation Solution

A dynamic gas flow wound dressing assembly that includes a gas flow framing structure with enclosed outlets and a scaffolding partition member made of resilient foam, which creates spacing between the dressing and the wound, allowing for enhanced ventilation and directed gas flow across the wound area by matching the skin contours and applying forces to increase the treatment volume.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of stationary object

If a foam barrier is used between the wound dressing and the wound to increase treatment volume, then the gas flow treatment volume is increased, but the gas flow distribution becomes inefficient and does not align with the wound contour

Engineering Contradiction:
Improvegas flow treatment volumeVSAvoidgas flow distribution alignment
Core Design Contradiction:
Volume of stationary objectVSManufacturing precision

Solution Approach 1:

The patent uses a flexible membrane that conforms to the wound contour, replacing the rigid foam barrier. This membrane allows the gas flow distribution system to adapt to the wound's shape while maintaining proper alignment, thus resolving the contradiction between increasing treatment volume and maintaining distribution precision.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent changes the physical state and properties of the barrier material from rigid foam to flexible membrane, allowing it to deform and match the wound contour. This parameter change enables both increased treatment volume through proper spacing and maintained alignment with the wound surface.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the gas flow framing structure is placed directly on the wound, then the gas flow is delivered directly to the wound, but the spacing and ventilation are insufficient

Engineering Contradiction:
Improvewound healing efficiencyVSAvoidventilation effectiveness
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The flexible membrane acts as an intermediary between the gas flow framing structure and the wound. It provides the necessary spacing for ventilation and fluid absorption while still allowing effective gas flow delivery to the wound surface, thus resolving the contradiction between direct gas delivery and adequate spacing.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The flexible membrane is nested within the gas flow framing structure, creating a multi-layered system where each layer serves a specific function. The membrane provides spacing and ventilation while the framing structure delivers gas flow, achieving both objectives simultaneously.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Length of stationary object

If a rigid foam barrier is used to create spacing, then the spacing and padding are increased, but the ability to match skin contours is reduced

Engineering Contradiction:
Improvespacing between dressing and woundVSAvoidcontour matching capability
Core Design Contradiction:
Length of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent replaces rigid foam with a flexible membrane that can deform to match skin contours while still providing adequate spacing. This flexible material maintains the necessary distance between the dressing and wound for ventilation while adapting to the patient's anatomy.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The membrane is designed to be dynamic and adaptable, allowing it to conform to different wound shapes and locations on the body. This dynamic property enables the system to maintain both spacing and contour matching capability across various application scenarios.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11529504B2Dynamic gas-flow wound dressing assembly and method for enhancing the effect of generated gas flow across a wound
Publication Date: 2022.12.20 HEGG JEFFREY WAYNE
  • US11529504B2 patent drawing
  • US11529504B2 patent drawing
  • US11529504B2 patent drawing

AI summary

A dynamic gas-flow wound dressing assembly and method for enhancing the effect of generated gas flow across a wound creates spacing between a medical dressing cover and the wound to enhance ventilation. The assembly provides a medical dressing cover that covers a wound. The medical dressing couples to a gas flow framing structure having a gas inlet and enclosed gas outlets. A high rate gas flow is introduced through gas flow framing structure. The gas discharges to cross the wound. A scaffolding partition member serves as a resilient spacer between the gas flow framing structure and wound, enhancing ventilation by forces on the skin and directing gas flow. The scaffolding includes intake ports and outlet ports in fluid communication with inlets and outlets of gas flow framing structure. The scaffolding carries generated gas flow from the gas flow framing structure to wound, covering a larger gas flow volume across wound.