Low-Profile Fluid Conductor for Wound Moisture Evacuation
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Solution Overview
Problem
Existing negative-pressure therapy systems lack efficient mechanisms for fluid management and moisture control, which can hinder wound healing and treatment efficacy.
Innovation Solution
The development of low-profile fluid conductors with integrated moisture-vapor transmission capabilities and multiple fluid pathways, allowing for controlled fluid flow and evaporation, coupled with negative-pressure sources to enhance wound treatment systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional fluid conductors are used in negative-pressure therapy systems, then fluid can be removed from the wound site, but moisture control and fluid management efficiency are insufficient
Solution Approach 1:
The fluid conductor is divided into multiple functional pathways: a first fluid pathway for removing wound exudate under negative pressure, and a second fluid pathway for introducing moisture to the wound site. This segmentation allows independent control of fluid removal and moisture delivery, resolving the contradiction between productivity and reliability in fluid management.
Solution Approach 2:
The fluid conductor is designed as a multi-functional device that simultaneously performs multiple functions: (1) removes wound exudate through the first fluid pathway, (2) introduces moisture through the second fluid pathway, and (3) maintains structural integrity under negative pressure. This multi-functionality improves both fluid management efficiency and moisture control capability without requiring separate devices.
2Productivity
If negative pressure is applied to the first fluid pathway, then fluid can be drawn from the wound site, but the structure may collapse without proper support
Solution Approach 1:
The fluid conductor incorporates a low-profile structure with differentiated wall thicknesses and reinforced sections at critical locations. The walls are thicker where structural support is needed to resist negative pressure collapse, while maintaining thinner walls in non-critical areas to minimize profile height. This local quality optimization allows high fluid removal rates while preserving structural integrity.
Solution Approach 2:
The fluid conductor is constructed from composite materials or multi-layer structures that provide both flexibility for conforming to wound sites and sufficient strength to withstand negative pressure. The composite structure maintains structural integrity under suction while enabling effective fluid removal through the first fluid pathway.
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
Enhances wound healing by effectively managing fluid flow and moisture, promoting tissue growth and reducing healing times through improved fluid management and moisture control.
Implementation Method 1
at least a portion of the side of the fluid conductor configured to face the patient may comprise a material having a high moisture-vapor transmission rate that can permit evaporated moisture to pass into the second fluid conductor
Implementation Method 2
If negative pressure is applied to the first fluid pathway, the second fluid pathway and the aperture are configured to draw fluid from the ambient environment through the aperture, into the second fluid pathway, and toward the second end of the fluid conductor
Data Source
AI summary
An apparatus for conducting fluid may comprise a first layer, a second layer, and a third layer sealed to form a first fluid pathway and a second fluid pathway in a stacked relationship. An aperture may be disposed at a first end of the second fluid pathway. Upon the application of a negative pressure, fluid may be drawn through the third aperture, into the second fluid pathway, and through the first fluid pathway. The apparatus may be fluidly coupled to a dressing at a tissue site. At least a portion of the third layer may be configured to allow moisture to evaporate from a periwound into the second fluid pathway. The fluid drawn through the third aperture may aid in removal of the evaporated moisture within the second fluid pathway, as well as moisture directly from the periwound, to reduce the risk of maceration to the periwound.